Pub Date : 2023-10-27DOI: 10.47414/na.11.3.2023.288677
Ya. O. Kyrylko, Ya. D. Fuchylo
Purpose. To determine the energy biomass productivity of poplar variety 'Robusta' on leached chernozems of the Central Forest-Steppe of Ukraine during the first four years. Methods. Field, laboratory, and statistical. Results. The data of research on the growth of energy plantations of the 'Robusta' poplar variety during the first four years on leached chernozems of the Central Forest Steppe of Ukrainare presented. The plantation was established using one-year lignified 25 cm long cuttings that have a diameter in the upper section of 0.8–1.0 cm. The cuttings were planted according to two planting design: 2.0 × 0.8 m and 2.0 × 0.9 m. In both variants, at the end of the first vegetation season, the trees had an average height of 1.6 m. In the second vegetation season, the height increase in the first variant was 2 .0 ± 0.05 m, and on the second 2.1 ± 0.05 m. In the third year of cultivation, the growth of poplar trees reached the maximum height and amounted to 3.1 and 3.0 m, respectively, at the end of the year, with the average height of plants reaching 6.8 and 6.6 m, respectively. In the fourth year of vegetation, the increase in height slowed down significantly (to 1.2 and 1.1 m, respectively) and the average increase in plant height began to decrease significantly: their height was 8.0 ± 0.16 m in the first variant and 7.7 ± 0.22 m in the second. The average stem diameter of plants at a height of 1.3 m after the first year was higher in the first variant compared to the second (0.5 cm vs. 0.3 cm). However, already during the second year, the trees of the second (less dense) plantation increased their diameter by 2 cm. The same difference was preserved in the third year, when the average diameter of the trees of these variants was 5.8 and 6.2 cm, respectively. During the fourth growing season, the average increase in diameter in the studied plantations significantly decreased, and their average diameter indicators reached 7.2 ± 0.22 and 8.0 ± 0.31 cm, respectively. At the same time, there was a significant increase in the productivity indicators of such plantations at this time: from 25.78 to 29.94 t/ha, with energy yield ranging from 458.8 GJ/ha to 532.8 GJ/ha. This circumstance indicates the expediency of using a 5–7-year cycle of biomass harvesting on such plantations to obtain maximum productivity indicators. Conclusions. On the leached chernozems of the Central Forest Steppe of Ukraine, poplar energy plantations of 'Robusta' variety after three years of cultivation accumulate about 12–15 tons of dry biomass per 1 ha, and after four years from 26 to 30 tons of dry biomass per 1 ha. It is advisable to continue the study of the growth of such plantations in order to establish the optimal rotation of the coppice.
{"title":"Peculiarities of the formation of energy biomass by poplar plantations on the leached chernozems of the Central Forest Steppe of Ukraine","authors":"Ya. O. Kyrylko, Ya. D. Fuchylo","doi":"10.47414/na.11.3.2023.288677","DOIUrl":"https://doi.org/10.47414/na.11.3.2023.288677","url":null,"abstract":"Purpose. To determine the energy biomass productivity of poplar variety 'Robusta' on leached chernozems of the Central Forest-Steppe of Ukraine during the first four years. Methods. Field, laboratory, and statistical. Results. The data of research on the growth of energy plantations of the 'Robusta' poplar variety during the first four years on leached chernozems of the Central Forest Steppe of Ukrainare presented. The plantation was established using one-year lignified 25 cm long cuttings that have a diameter in the upper section of 0.8–1.0 cm. The cuttings were planted according to two planting design: 2.0 × 0.8 m and 2.0 × 0.9 m. In both variants, at the end of the first vegetation season, the trees had an average height of 1.6 m. In the second vegetation season, the height increase in the first variant was 2 .0 ± 0.05 m, and on the second 2.1 ± 0.05 m. In the third year of cultivation, the growth of poplar trees reached the maximum height and amounted to 3.1 and 3.0 m, respectively, at the end of the year, with the average height of plants reaching 6.8 and 6.6 m, respectively. In the fourth year of vegetation, the increase in height slowed down significantly (to 1.2 and 1.1 m, respectively) and the average increase in plant height began to decrease significantly: their height was 8.0 ± 0.16 m in the first variant and 7.7 ± 0.22 m in the second. The average stem diameter of plants at a height of 1.3 m after the first year was higher in the first variant compared to the second (0.5 cm vs. 0.3 cm). However, already during the second year, the trees of the second (less dense) plantation increased their diameter by 2 cm. The same difference was preserved in the third year, when the average diameter of the trees of these variants was 5.8 and 6.2 cm, respectively. During the fourth growing season, the average increase in diameter in the studied plantations significantly decreased, and their average diameter indicators reached 7.2 ± 0.22 and 8.0 ± 0.31 cm, respectively. At the same time, there was a significant increase in the productivity indicators of such plantations at this time: from 25.78 to 29.94 t/ha, with energy yield ranging from 458.8 GJ/ha to 532.8 GJ/ha. This circumstance indicates the expediency of using a 5–7-year cycle of biomass harvesting on such plantations to obtain maximum productivity indicators. Conclusions. On the leached chernozems of the Central Forest Steppe of Ukraine, poplar energy plantations of 'Robusta' variety after three years of cultivation accumulate about 12–15 tons of dry biomass per 1 ha, and after four years from 26 to 30 tons of dry biomass per 1 ha. It is advisable to continue the study of the growth of such plantations in order to establish the optimal rotation of the coppice.","PeriodicalId":497817,"journal":{"name":"Novìtnì agrotehnologìï","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136318528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-27DOI: 10.47414/na.11.3.2023.288672
M. Ya. Humentyk, O. Yu. Bordus
Purpose. To establish the peculiarities of plant growth, development, and chemical composition of the paulownia biomass of two species in the Right Bank Forest Steppe of Ukraine. Methods. Field, laboratory, measuring and weighing, mathematical and statistical. Results. The biological properties of two Paulownia species, namely Clone in vitro-112 and Paulownia tomentosa, were studied. The maximum number of leaves per plant at the end of the vegetation season was 24–26 in Clone in vitro-112 and 22–24 in Paulownia tomentosa. Leaf area per plant was 5.0–5.5 m2 and 4.0–4.5 m2, respectively. The main period of wood accumulation falls during the first three years of vegetation, and during this period, biomass productivity indicators are the highest. Five-year wood yield per tree was about 0.35 m3 in Clone in vitro-112 and 0.24 m3 in Paulownia tomentosa. The research determined the optimal content of nutrients, the lack or excess of which negatively affects biomass quality. Nitrogen is mostly concentrated in leaves (2.3–2.6%) and petioles (0.67–1.1%). The content of phosphorus was quite low: 0.33–0.36% in leaves and 0.22–0.23% in petioles. Plants contain a significant amount of potassium in the leaves: 1.25% in Clone in vitro-112 and 0.75% in Paulownia tomentosa. Conclusions. Clone in vitro-112 can be recommended for cultivation in the Right Bank Forest Steppe Zone of Ukraine. One hectare can produce 200–250 m3 of industrial wood and the same amount of branch biomass for 5–6 years. Branches are suitable for the production of fuel pellets and chips with low ash content (0.8–1.5%). At the same time, leaves and petioles of paulownia have an increased ash content (3.9–7.1%) due to the higher content of nutrients, in particular nitrogen. Therefore, it is not advisable to use them as feedstock for the production of solid biofuel, but they are suitable for the production of biogas.
{"title":"Peculiarities of plant growth, development, and chemical composition of the Paulownia biomass","authors":"M. Ya. Humentyk, O. Yu. Bordus","doi":"10.47414/na.11.3.2023.288672","DOIUrl":"https://doi.org/10.47414/na.11.3.2023.288672","url":null,"abstract":"Purpose. To establish the peculiarities of plant growth, development, and chemical composition of the paulownia biomass of two species in the Right Bank Forest Steppe of Ukraine. Methods. Field, laboratory, measuring and weighing, mathematical and statistical. Results. The biological properties of two Paulownia species, namely Clone in vitro-112 and Paulownia tomentosa, were studied. The maximum number of leaves per plant at the end of the vegetation season was 24–26 in Clone in vitro-112 and 22–24 in Paulownia tomentosa. Leaf area per plant was 5.0–5.5 m2 and 4.0–4.5 m2, respectively. The main period of wood accumulation falls during the first three years of vegetation, and during this period, biomass productivity indicators are the highest. Five-year wood yield per tree was about 0.35 m3 in Clone in vitro-112 and 0.24 m3 in Paulownia tomentosa. The research determined the optimal content of nutrients, the lack or excess of which negatively affects biomass quality. Nitrogen is mostly concentrated in leaves (2.3–2.6%) and petioles (0.67–1.1%). The content of phosphorus was quite low: 0.33–0.36% in leaves and 0.22–0.23% in petioles. Plants contain a significant amount of potassium in the leaves: 1.25% in Clone in vitro-112 and 0.75% in Paulownia tomentosa. Conclusions. Clone in vitro-112 can be recommended for cultivation in the Right Bank Forest Steppe Zone of Ukraine. One hectare can produce 200–250 m3 of industrial wood and the same amount of branch biomass for 5–6 years. Branches are suitable for the production of fuel pellets and chips with low ash content (0.8–1.5%). At the same time, leaves and petioles of paulownia have an increased ash content (3.9–7.1%) due to the higher content of nutrients, in particular nitrogen. Therefore, it is not advisable to use them as feedstock for the production of solid biofuel, but they are suitable for the production of biogas.","PeriodicalId":497817,"journal":{"name":"Novìtnì agrotehnologìï","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136318477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-27DOI: 10.47414/na.11.3.2023.288678
S. M. Kalenska, N. Yu. Hordyna
Purpose. To establish the peculiarities of the productivity formation of different safflower varieties under the influence row width and seeding rate in the Right Bank Forest Steppe of Ukraine. Methods. The research was carried out in typical chernozem at the agronomic research station of the National University of Life and Environmental Sciences of Ukraine in 2021–2022 as a three-factor field experiment. Factor A (variety): ‘Dobrynia’ and ‘Soniachnyi’; factor B (row width): 19, 38, and 57 cm; factor C (seeding rate): 100, 200 and 300 thousand seeds/ha. Results. In the experiment, plant height of the variety ‘Dobrynia’ varied between 100.7 and 114.3 cm and 'Soniachnyi' between 93.5 and 108.9 cm. The number of heads per plant was 15.5–20.6 and 7.0–19.8, 1000-kernel weight 40.6–45.4 g and 38.8–47.7 g, respectively; number of seeds per plant 148–513 and 145–508, seed weight per plant 6.9–22.5 and 6.9–22.7 g/plant. As for plant height, in both varieties, its indicators increased with an increase in the seeding rate for all variants of row widths, reaching maximum values with a row width of 19 cm and a seeding rate of 300,000 seeds/ha. The rest of the biometric parameters, on the contrary, showed a clear regularity to decrease along with an increase in the seeding rate. At the same time, the highest number of heads and the seed weight per plant were in variants with a row width of 38 cm; the highest 1000- kernel weight was for the row width of 57 cm; the highest number of seeds per plant was for the row width of 19 cm. The biological yield of seeds in the experiment ranged from 1.25 to 2.55 t/ha in ‘Dobrynia’ and from 1.21 to 2.52 t/ha in ‘Soniachnyi'. In both varieties, biological yield increased with an increase in the seeding rate, reaching maximum values at a row width of 38 cm. Conclusions. Both studied varieties demonstrated the highest yield for the row width of 38 cm and a seeding rate of 300,000 seeds/ha: 2.55 t/ha ‘Dobrynia’ and 2.52 t/ha ‘Soniachnyi’. Despite the fact that these safflower varieties are recommended for the cultivation in the southern regions, they are quite adaptive for the cultivation in the north of Ukraine as well, taking into account the gradual increase in average annual temperatures and high soil fertility.
{"title":"Yield structure of safflower under the influence of row width and seeding rate","authors":"S. M. Kalenska, N. Yu. Hordyna","doi":"10.47414/na.11.3.2023.288678","DOIUrl":"https://doi.org/10.47414/na.11.3.2023.288678","url":null,"abstract":"Purpose. To establish the peculiarities of the productivity formation of different safflower varieties under the influence row width and seeding rate in the Right Bank Forest Steppe of Ukraine. Methods. The research was carried out in typical chernozem at the agronomic research station of the National University of Life and Environmental Sciences of Ukraine in 2021–2022 as a three-factor field experiment. Factor A (variety): ‘Dobrynia’ and ‘Soniachnyi’; factor B (row width): 19, 38, and 57 cm; factor C (seeding rate): 100, 200 and 300 thousand seeds/ha. Results. In the experiment, plant height of the variety ‘Dobrynia’ varied between 100.7 and 114.3 cm and 'Soniachnyi' between 93.5 and 108.9 cm. The number of heads per plant was 15.5–20.6 and 7.0–19.8, 1000-kernel weight 40.6–45.4 g and 38.8–47.7 g, respectively; number of seeds per plant 148–513 and 145–508, seed weight per plant 6.9–22.5 and 6.9–22.7 g/plant. As for plant height, in both varieties, its indicators increased with an increase in the seeding rate for all variants of row widths, reaching maximum values with a row width of 19 cm and a seeding rate of 300,000 seeds/ha. The rest of the biometric parameters, on the contrary, showed a clear regularity to decrease along with an increase in the seeding rate. At the same time, the highest number of heads and the seed weight per plant were in variants with a row width of 38 cm; the highest 1000- kernel weight was for the row width of 57 cm; the highest number of seeds per plant was for the row width of 19 cm. The biological yield of seeds in the experiment ranged from 1.25 to 2.55 t/ha in ‘Dobrynia’ and from 1.21 to 2.52 t/ha in ‘Soniachnyi'. In both varieties, biological yield increased with an increase in the seeding rate, reaching maximum values at a row width of 38 cm. Conclusions. Both studied varieties demonstrated the highest yield for the row width of 38 cm and a seeding rate of 300,000 seeds/ha: 2.55 t/ha ‘Dobrynia’ and 2.52 t/ha ‘Soniachnyi’. Despite the fact that these safflower varieties are recommended for the cultivation in the southern regions, they are quite adaptive for the cultivation in the north of Ukraine as well, taking into account the gradual increase in average annual temperatures and high soil fertility.","PeriodicalId":497817,"journal":{"name":"Novìtnì agrotehnologìï","volume":"58 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136319383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-27DOI: 10.47414/na.11.3.2023.288673
I. S. Tereshchenko, L. I. Storozhyk
Purpose. To establish and analyze the biological features of seed quality indicators, field germination of seeds, and phytochemical composition of modern sugar sorghum hybrids 'Sugargraze ARG' (Argentina), 'Sioux', 'Mohawk' (USA) and 'Ananas' (Ukraine). Methods. Physiological-biochemical, agrochemical and statistical methods were used in the study. The content of phytochemicals in the seeds of the studied sugar sorghum hybrids was determined by the extraction method. Results. In the studied sorghum hybrids, a high concentration of the main phenolic profiles of the seeds was established. The quantitative component depended on the color of the pericarp of the grain, which affected the quality indicators of germination and field germination of the seeds. In hybrid 'Sioux', which has a dark brown color of the pericarp and the highest content of polyphenolic profiles (50.4%), germination energy, laboratory and field seed germination were low and amounted to 84, 90 and 80%, respectively. The high level of these indicators was formed by the hybrid 'Ananas' with the lowest content of phenolic profiles (38.1%) and with non-pigmented pericarp, which had germination energy, laboratory and field similarity of 96, 98 and 89%, respectively. Hybrids 'Sugargraze ARG' (light brown grain color) and 'Mohawk' (pink grain color) had indicators of germination energy of 90 and 95%, laboratory germination 93 and 96%, field germination 82 and 81%, respectively, and were characterized by an average content of phenolics profiles of 45.7 and 42.5%, respectively. Conclusions. The hybrid of American origin 'Sioux' that has a high content of phenolic compounds in the seeds, ensured the preservation of plants in the phase of full germination at the level of 87%, while Ukrainian hybrid 'Ananas' with the lowest content of phytochemical compounds also had the lowest preservation rate (80%) among the studied hybrids. In 'Sugargraze ARG' and 'Mohawk' that have medium phenol content, the rate of plants preserved in the full germination stage was 84–85%.
{"title":"Quality, field germination of seeds and phenolic profiles of modern sugar sorghum hybrids","authors":"I. S. Tereshchenko, L. I. Storozhyk","doi":"10.47414/na.11.3.2023.288673","DOIUrl":"https://doi.org/10.47414/na.11.3.2023.288673","url":null,"abstract":"Purpose. To establish and analyze the biological features of seed quality indicators, field germination of seeds, and phytochemical composition of modern sugar sorghum hybrids 'Sugargraze ARG' (Argentina), 'Sioux', 'Mohawk' (USA) and 'Ananas' (Ukraine). Methods. Physiological-biochemical, agrochemical and statistical methods were used in the study. The content of phytochemicals in the seeds of the studied sugar sorghum hybrids was determined by the extraction method. Results. In the studied sorghum hybrids, a high concentration of the main phenolic profiles of the seeds was established. The quantitative component depended on the color of the pericarp of the grain, which affected the quality indicators of germination and field germination of the seeds. In hybrid 'Sioux', which has a dark brown color of the pericarp and the highest content of polyphenolic profiles (50.4%), germination energy, laboratory and field seed germination were low and amounted to 84, 90 and 80%, respectively. The high level of these indicators was formed by the hybrid 'Ananas' with the lowest content of phenolic profiles (38.1%) and with non-pigmented pericarp, which had germination energy, laboratory and field similarity of 96, 98 and 89%, respectively. Hybrids 'Sugargraze ARG' (light brown grain color) and 'Mohawk' (pink grain color) had indicators of germination energy of 90 and 95%, laboratory germination 93 and 96%, field germination 82 and 81%, respectively, and were characterized by an average content of phenolics profiles of 45.7 and 42.5%, respectively. Conclusions. The hybrid of American origin 'Sioux' that has a high content of phenolic compounds in the seeds, ensured the preservation of plants in the phase of full germination at the level of 87%, while Ukrainian hybrid 'Ananas' with the lowest content of phytochemical compounds also had the lowest preservation rate (80%) among the studied hybrids. In 'Sugargraze ARG' and 'Mohawk' that have medium phenol content, the rate of plants preserved in the full germination stage was 84–85%.","PeriodicalId":497817,"journal":{"name":"Novìtnì agrotehnologìï","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136317190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-27DOI: 10.47414/na.11.3.2023.288675
L. M. Karpuk, N. V. Zaika
Purpose. To reveal the peculiarities of the influence of the cultivation technology elements on the course of photosynthetic processes in sowings. Methods. The research was carried out in the years 2019–2022 at the experimental field of the Scientific Research Center of Bila Tserkva National Agrarian University (Kyiv region) located in the zone of unstable soil moisture of the Right Bank Forest Steppe of Ukraine. Spelt varieties ‘Zoria Ukrainy’, ‘Europe’, and ‘Atterhauer Dinkel’ were grown with the application of foliar fertilizer potassium humate HK-17 (400 g/ha) in the earing and milk ripeness stages, and Agriflex Amino growth regulator (200 g/ha) in the earing stage. Results. In the flowering stage, the average leaf area in the experiment was 44.9 thousand m2/ha. In particular, in variety ‘Zoria Ukrainy’ it was 45.3 thousand m2/ha, ‘Europe’ 45.5 thousand m2/ha, and ‘Atterhauer Dinkel’ 43.8 thousand m2/ha. A positive effect of foliar application of potassium humate in the earing stage was determined. Potassium humate contributed to an increase in the leaf area in the flowering stage of 2.1 thousand m2/ha, while an increase in the leaf area provided by application of Agriflex Amino in the earing stage was 1.0 thousand m2/ha. In the stage of milky grain ripeness, the average leaf area was 27.1 thousand m2/ha: 27.6 thousand m2/ha in ‘Zoria Ukrainy’, 27.8 thousand m2/ha in ‘Europe’, and 25.9 thousand m2/ha in ‘Atterhauer Dinkel’. The application of potassium humate HK-17 in the earing stage contributed to obtaining a additional leaf area of 0.98 thousand m2/ha and Agriflex Amino of 0.48 thousand m2/ha. At the same time, the application of potassium humate HK-17 in the stage of milk ripeness did not affect the change of this indicator. The highest indicators of net productivity of photosynthesis in variety ‘Zoria Ukrainy’ (1.07–1.08 g/m2 of dry matter per day) were in the treatment with potassium humate HK-17 in the earing stage and repeated in the milk ripeness stage. On the other hand, in ‘Europe' variety, the treatment with potassium humate in the earing stage repeated in the milk ripeness stage in combination with the application of Agriflex Amino growth regulator in the earing stage was 1.17 g/m2 of dry matter per day: it appeared the best treatment. The highest indicators of NPP were in sowings of ‘Atterhauer Dinkel’ variety, despite the fact that it had a slightly smaller leaf area. In particular, in the case of application of potassium humate in the earing stage repeated in the milk ripeness stage, the NPP was 1.18 g/m2 of dry matter per day, and for the combination with the application of Agriflex Amino growth stimulator in the earing stage it was 1.21 g/m2 of dry matter per day. Conclusions. The conducted research confirms the expediency of the foliar application of fertilizer potassium humate HK-17 and growth regulator Agriflex Amino in cultivation of spelt, which improves the course of photosynthetic processes in sowings during vegetatio
{"title":"Peculiarities of photosynthesis in spelt (Tríticum spélta L.) in the Forest Steppe Zone of Ukraine","authors":"L. M. Karpuk, N. V. Zaika","doi":"10.47414/na.11.3.2023.288675","DOIUrl":"https://doi.org/10.47414/na.11.3.2023.288675","url":null,"abstract":"Purpose. To reveal the peculiarities of the influence of the cultivation technology elements on the course of photosynthetic processes in sowings. Methods. The research was carried out in the years 2019–2022 at the experimental field of the Scientific Research Center of Bila Tserkva National Agrarian University (Kyiv region) located in the zone of unstable soil moisture of the Right Bank Forest Steppe of Ukraine. Spelt varieties ‘Zoria Ukrainy’, ‘Europe’, and ‘Atterhauer Dinkel’ were grown with the application of foliar fertilizer potassium humate HK-17 (400 g/ha) in the earing and milk ripeness stages, and Agriflex Amino growth regulator (200 g/ha) in the earing stage. Results. In the flowering stage, the average leaf area in the experiment was 44.9 thousand m2/ha. In particular, in variety ‘Zoria Ukrainy’ it was 45.3 thousand m2/ha, ‘Europe’ 45.5 thousand m2/ha, and ‘Atterhauer Dinkel’ 43.8 thousand m2/ha. A positive effect of foliar application of potassium humate in the earing stage was determined. Potassium humate contributed to an increase in the leaf area in the flowering stage of 2.1 thousand m2/ha, while an increase in the leaf area provided by application of Agriflex Amino in the earing stage was 1.0 thousand m2/ha. In the stage of milky grain ripeness, the average leaf area was 27.1 thousand m2/ha: 27.6 thousand m2/ha in ‘Zoria Ukrainy’, 27.8 thousand m2/ha in ‘Europe’, and 25.9 thousand m2/ha in ‘Atterhauer Dinkel’. The application of potassium humate HK-17 in the earing stage contributed to obtaining a additional leaf area of 0.98 thousand m2/ha and Agriflex Amino of 0.48 thousand m2/ha. At the same time, the application of potassium humate HK-17 in the stage of milk ripeness did not affect the change of this indicator. The highest indicators of net productivity of photosynthesis in variety ‘Zoria Ukrainy’ (1.07–1.08 g/m2 of dry matter per day) were in the treatment with potassium humate HK-17 in the earing stage and repeated in the milk ripeness stage. On the other hand, in ‘Europe' variety, the treatment with potassium humate in the earing stage repeated in the milk ripeness stage in combination with the application of Agriflex Amino growth regulator in the earing stage was 1.17 g/m2 of dry matter per day: it appeared the best treatment. The highest indicators of NPP were in sowings of ‘Atterhauer Dinkel’ variety, despite the fact that it had a slightly smaller leaf area. In particular, in the case of application of potassium humate in the earing stage repeated in the milk ripeness stage, the NPP was 1.18 g/m2 of dry matter per day, and for the combination with the application of Agriflex Amino growth stimulator in the earing stage it was 1.21 g/m2 of dry matter per day. Conclusions. The conducted research confirms the expediency of the foliar application of fertilizer potassium humate HK-17 and growth regulator Agriflex Amino in cultivation of spelt, which improves the course of photosynthetic processes in sowings during vegetatio","PeriodicalId":497817,"journal":{"name":"Novìtnì agrotehnologìï","volume":"6 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136318169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-27DOI: 10.47414/na.11.3.2023.288676
O. O. Bordus
Purpose. To study the peculiarities of growing one-year seedlings obtained from cuttings of four black poplar cultivars in the Central Forest Steppe and the influence of agrotechnical measures and other factors on this process. Methods. For three years, the morphometric characteristics of the seedlings of poplar varieties 'Dorskamp', 'I‑45/51', 'Robusta', and Toropohrytskyi poplar, grown on chernozems of the Central Forest Steppe of Ukraine, were studied. One-year lignified 20, 25 and 30-cm long cuttings were used to obtain seedlings that were planted in two periods: autumn (late November) and spring (beginning of April) in the years 2019–2021. Results. For autumn planting, cuttings of Toropohrytskyi poplar had the highest height. It was, on average, over three years, 178.4 cm when using cuttings with a length of 20 cm, 188.7 cm with cuttings of 25 cm, and 197.0 cm with cuttings of 30 cm. The average height of seedlings of 'Dorskamp' variety ranged from 158.2 up to 170.3 cm, in 'Robusta' from 148.1 to 161.8 cm and in 'I–45/51' from 145.2 to 153.8 cm. Plants of 'Dorskamp' variety had the largest dimensions during spring planting, which ranged from 193.8 to 197.9 cm. The average height of Toropohrytskyi poplar plants was from 151.2 to 173.5 cm, of 'Robusta' variety from 131.9 to 149.1 cm, and of 'I–45/51' from 122.4 to 128.3 cm. At the same time, the plants from the shortest cuttings had the highest height in varieties 'Robusta' and 'I–45/51'. Conclusions. Of the studied cultivars cultivated on leached chernozems, it is primarily advisable to use Toropohrytsky poplar and 'Dorskamp' variety. The first one should be planted in autumn using 30-cm cuttings, and the second one should be planted in spring using 20-cm cuttings. Cuttings of the 'I-45/51' and 'Robusta' varieties should be planted in autumn. Their optimal length is 20 cm. The weight of one-year-old poplar cuttings and the proportion of their root system are most influenced by the time of planting, varietal characteristics and weather conditions of the growing season.
{"title":"Assessment of the influence of the elements of cultivation technology and other factors on the growing of poplar seedlings","authors":"O. O. Bordus","doi":"10.47414/na.11.3.2023.288676","DOIUrl":"https://doi.org/10.47414/na.11.3.2023.288676","url":null,"abstract":"Purpose. To study the peculiarities of growing one-year seedlings obtained from cuttings of four black poplar cultivars in the Central Forest Steppe and the influence of agrotechnical measures and other factors on this process. Methods. For three years, the morphometric characteristics of the seedlings of poplar varieties 'Dorskamp', 'I‑45/51', 'Robusta', and Toropohrytskyi poplar, grown on chernozems of the Central Forest Steppe of Ukraine, were studied. One-year lignified 20, 25 and 30-cm long cuttings were used to obtain seedlings that were planted in two periods: autumn (late November) and spring (beginning of April) in the years 2019–2021. Results. For autumn planting, cuttings of Toropohrytskyi poplar had the highest height. It was, on average, over three years, 178.4 cm when using cuttings with a length of 20 cm, 188.7 cm with cuttings of 25 cm, and 197.0 cm with cuttings of 30 cm. The average height of seedlings of 'Dorskamp' variety ranged from 158.2 up to 170.3 cm, in 'Robusta' from 148.1 to 161.8 cm and in 'I–45/51' from 145.2 to 153.8 cm. Plants of 'Dorskamp' variety had the largest dimensions during spring planting, which ranged from 193.8 to 197.9 cm. The average height of Toropohrytskyi poplar plants was from 151.2 to 173.5 cm, of 'Robusta' variety from 131.9 to 149.1 cm, and of 'I–45/51' from 122.4 to 128.3 cm. At the same time, the plants from the shortest cuttings had the highest height in varieties 'Robusta' and 'I–45/51'. Conclusions. Of the studied cultivars cultivated on leached chernozems, it is primarily advisable to use Toropohrytsky poplar and 'Dorskamp' variety. The first one should be planted in autumn using 30-cm cuttings, and the second one should be planted in spring using 20-cm cuttings. Cuttings of the 'I-45/51' and 'Robusta' varieties should be planted in autumn. Their optimal length is 20 cm. The weight of one-year-old poplar cuttings and the proportion of their root system are most influenced by the time of planting, varietal characteristics and weather conditions of the growing season.","PeriodicalId":497817,"journal":{"name":"Novìtnì agrotehnologìï","volume":"36 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136318978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.47414/na.11.1.2023.285496
N. V. Zaika, L. M. Karpuk
UDC 633.111.5:631.547 Zaika, N. V., & Karpuk, L. M.* (2023). Peculiarities of photosynthesis in spelt (Tríticum spélta L.) in the Forest Steppe Zone of Ukraine. Advanced Agritechnologies, 11(1). https://doi.org/10.47414/na.11.1.2023.285496 [In Ukrainian] Bila Tserkva National Agrarian University, 8/1 Soborna square, Bila Tserkva, Kyiv region, 09100, Ukraine, *e‑mail: lesya_karpuk@ukr.net Purpose. To identify the influence of the elements of the cultivation technology on the yield structure of spelt. Methods. The research was carried out in the years 2019–2022 at the experimental field of the Scientific Research Center of Bila Tserkva National Agrarian University (Kyiv region) located in the zone of unstable soil moisture of the Right Bank Forest Steppe of Ukraine. Spelt varieties ‘Zoria Ukrainy’, ‘Europe’, and ‘Atterhauer Dinkel’ were grown with the application of foliar fertilizer potassium humate HK‑17 (400 g/ha) in the earing and milk ripeness stages, and Agriflex Amino growth regulator (200 g/ha) in the earing stage. Results. The best indicators of the 1000-kernel weight were obtained with the foliar application of potassium humate HK-17 in the earing stage repeated in the milk ripeness stage in combination with Agriflex Amino growth regulator in the earing stage. Under such conditions, the 1000-kernel weight of the variety ‘Zoria Ukrainy’ was 68.9 g, ‘Yevropa’ 67.5 g, and ‘Atterhauer Dinkel’ 79.0 g. In terms of the influence of factors on the formation of the number of grains per ear, the highest indicators were obtained in the case of foliar application of humate potassium in the earing stage repeated in the milk ripeness stage. Moreover, for the variety ‘Zoria Ukrainy’, the combination with the treatment of plants with the Agriflex Amino growth stimulator in the earing stage was unimportant: in both treatments, 1000-kernel weight of 1.07 g was obtained. ‘Yevropa’ variety produced 1.09 g of grains per ear and ‘Atterhauer Dinkel’ 0.85 g. Conclusions. The highest seed weight per plant was in the ‘Zoria Ukrainy’ variety: 1.28–1.29 g was provided in the case of foliar application of potassium humate HK-17 in the earing stage repeated in the milk ripeness stage. At the same time, with the combination of humates and growth regulator Agriflex Amino in the earing stage, the weight of grains per plant in the ‘Yevropa’ variety was 1.42 g, and in ‘Atterhauer Dinkel’ 1.36 g, which were the best results of the experiment.
{"title":"Peculiarities of photosynthesis in spelt (Tríticum spélta L.) in the Forest Steppe Zone of Ukraine","authors":"N. V. Zaika, L. M. Karpuk","doi":"10.47414/na.11.1.2023.285496","DOIUrl":"https://doi.org/10.47414/na.11.1.2023.285496","url":null,"abstract":"UDC 633.111.5:631.547 Zaika, N. V., & Karpuk, L. M.* (2023). Peculiarities of photosynthesis in spelt (Tríticum spélta L.) in the Forest Steppe Zone of Ukraine. Advanced Agritechnologies, 11(1). https://doi.org/10.47414/na.11.1.2023.285496 [In Ukrainian] Bila Tserkva National Agrarian University, 8/1 Soborna square, Bila Tserkva, Kyiv region, 09100, Ukraine, *e‑mail: lesya_karpuk@ukr.net Purpose. To identify the influence of the elements of the cultivation technology on the yield structure of spelt. Methods. The research was carried out in the years 2019–2022 at the experimental field of the Scientific Research Center of Bila Tserkva National Agrarian University (Kyiv region) located in the zone of unstable soil moisture of the Right Bank Forest Steppe of Ukraine. Spelt varieties ‘Zoria Ukrainy’, ‘Europe’, and ‘Atterhauer Dinkel’ were grown with the application of foliar fertilizer potassium humate HK‑17 (400 g/ha) in the earing and milk ripeness stages, and Agriflex Amino growth regulator (200 g/ha) in the earing stage. Results. The best indicators of the 1000-kernel weight were obtained with the foliar application of potassium humate HK-17 in the earing stage repeated in the milk ripeness stage in combination with Agriflex Amino growth regulator in the earing stage. Under such conditions, the 1000-kernel weight of the variety ‘Zoria Ukrainy’ was 68.9 g, ‘Yevropa’ 67.5 g, and ‘Atterhauer Dinkel’ 79.0 g. In terms of the influence of factors on the formation of the number of grains per ear, the highest indicators were obtained in the case of foliar application of humate potassium in the earing stage repeated in the milk ripeness stage. Moreover, for the variety ‘Zoria Ukrainy’, the combination with the treatment of plants with the Agriflex Amino growth stimulator in the earing stage was unimportant: in both treatments, 1000-kernel weight of 1.07 g was obtained. ‘Yevropa’ variety produced 1.09 g of grains per ear and ‘Atterhauer Dinkel’ 0.85 g. Conclusions. The highest seed weight per plant was in the ‘Zoria Ukrainy’ variety: 1.28–1.29 g was provided in the case of foliar application of potassium humate HK-17 in the earing stage repeated in the milk ripeness stage. At the same time, with the combination of humates and growth regulator Agriflex Amino in the earing stage, the weight of grains per plant in the ‘Yevropa’ variety was 1.42 g, and in ‘Atterhauer Dinkel’ 1.36 g, which were the best results of the experiment.","PeriodicalId":497817,"journal":{"name":"Novìtnì agrotehnologìï","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135429064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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