Artur Rybarczyk, G. Haraf, G. Tokarczyk, M. Teleszko, Izabella Tobolska, G. Bienkiewicz
This research aimed to assess the impact of replacing a partially of post-extraction soybean meal in the diet with varying amounts of distillers yeast (3, 6 and 9%) on the composition and quality in the pectoral muscles of broiler chickens. Findings revealed that cockerels fed with 3% yeast exhibited elevated oleic acid levels and reduced n-6 fatty acids compared to those fed with 6% and 9% yeast. Furthermore, chickens consuming 3% yeast displayed higher antioxidant capacity (ABTS) and decreased levels of linoleic acid and its ratio to α-linolenic acid compared to the 9% yeast group. Moreover, muscles from cockerels on the 3% yeast diet and the control group demonstratedhigher shear force, lower n-6/n-3 ratio and lipid peroxidation rate (TBARS) than those on the 9% yeast regimen. Conversely, cockerels on the 9% yeast diet exhibited reduced gumminess and ferric reducing antioxidant power (FRAP) compared to the control group. The study highlights yeast’s role in altering broiler chicken meat’s fatty acid profile, texture, and antioxidant properties.
{"title":"Effect of distillers yeast in feed on texture, fatty acid profile and antioxidant properties of breast muscle of broiler chickens","authors":"Artur Rybarczyk, G. Haraf, G. Tokarczyk, M. Teleszko, Izabella Tobolska, G. Bienkiewicz","doi":"10.23986/afsci.145308","DOIUrl":"https://doi.org/10.23986/afsci.145308","url":null,"abstract":"This research aimed to assess the impact of replacing a partially of post-extraction soybean meal in the diet with varying amounts of distillers yeast (3, 6 and 9%) on the composition and quality in the pectoral muscles of broiler chickens. Findings revealed that cockerels fed with 3% yeast exhibited elevated oleic acid levels and reduced n-6 fatty acids compared to those fed with 6% and 9% yeast. Furthermore, chickens consuming 3% yeast displayed higher antioxidant capacity (ABTS) and decreased levels of linoleic acid and its ratio to α-linolenic acid compared to the 9% yeast group. Moreover, muscles from cockerels on the 3% yeast diet and the control group demonstratedhigher shear force, lower n-6/n-3 ratio and lipid peroxidation rate (TBARS) than those on the 9% yeast regimen. Conversely, cockerels on the 9% yeast diet exhibited reduced gumminess and ferric reducing antioxidant power (FRAP) compared to the control group. The study highlights yeast’s role in altering broiler chicken meat’s fatty acid profile, texture, and antioxidant properties.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141385775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marketta Rinne, M. Franco, Kaisa Kuoppala, Taina Jalava, Tomasz Stefanski, Tuomo Kokkonen
There is increasing interest in Finland to cultivate maize for silage, although the climatic conditions are in the borderline for maize due to the short and cool growing season. This may result in an immature crop that differs from typical maize for ensiling by having low dry matter (DM) and starch concentrations. We evaluated the preservation characteristics of forage maize during 2019 and 2020 harvested in Helsinki, Finland, at two stages of maturity. The DM concentration of the crops ranged from 230 to 360 g kg-1, and starch concentration from 179 to 283 g kg-1 DM. The crops were ensiled in laboratory scale using four different chemical organic acid based additives or a heterofermentative lactic acid bacteria inoculant. A control silage without additive treatment was also included. All silages were well fermented with low pH (average 3.75) and proportion of ammonia N in total N (average 47 g kg-1). Formic acid based additives restricted silage fermentation and most chemical additives improved the aerobic stability of maize silages compared to the control and inoculant treated silages that, under the conditions of the current study, did not differ from each other.
{"title":"Effects of harvest date and additives on maize silage quality under boreal conditions","authors":"Marketta Rinne, M. Franco, Kaisa Kuoppala, Taina Jalava, Tomasz Stefanski, Tuomo Kokkonen","doi":"10.23986/afsci.142929","DOIUrl":"https://doi.org/10.23986/afsci.142929","url":null,"abstract":"There is increasing interest in Finland to cultivate maize for silage, although the climatic conditions are in the borderline for maize due to the short and cool growing season. This may result in an immature crop that differs from typical maize for ensiling by having low dry matter (DM) and starch concentrations. We evaluated the preservation characteristics of forage maize during 2019 and 2020 harvested in Helsinki, Finland, at two stages of maturity. The DM concentration of the crops ranged from 230 to 360 g kg-1, and starch concentration from 179 to 283 g kg-1 DM. The crops were ensiled in laboratory scale using four different chemical organic acid based additives or a heterofermentative lactic acid bacteria inoculant. A control silage without additive treatment was also included. All silages were well fermented with low pH (average 3.75) and proportion of ammonia N in total N (average 47 g kg-1). Formic acid based additives restricted silage fermentation and most chemical additives improved the aerobic stability of maize silages compared to the control and inoculant treated silages that, under the conditions of the current study, did not differ from each other.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140964536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Furkan Yigit, L. Rantamäki-Lahtinen, Timo Sipiläinen
This study investigates the influences of resources and entrepreneurial characteristics on perceived success in familyfarms using the Resource-Based Theory and Entrepreneurial Orientation perspectives. Resources and entrepreneurial orientation are used to identify success perceptions. Confirmatory factor analysis and structural equation modelling were applied to the survey data of 805 Finnish family farmers. Family farmers rate their skills as good, and their abilities of proactiveness and self-realization success as high. The results suggest that both resources and entrepreneurial orientation affect the perceived success of family farmers, although the role of entrepreneurial orientation is relatively small. Co-variability between resources and entrepreneurial orientation is positive, addressingthe change towards the same direction. This study promotes the understanding of the family perspective and its role in the successful use of resources and entrepreneurial capabilities in farming and offers a developed construct for family farm business research.
{"title":"What Causes Finnish Family Farmers Feel Successful? The Role of Resources and Entrepreneurial Characteristics","authors":"Furkan Yigit, L. Rantamäki-Lahtinen, Timo Sipiläinen","doi":"10.23986/afsci.142601","DOIUrl":"https://doi.org/10.23986/afsci.142601","url":null,"abstract":"This study investigates the influences of resources and entrepreneurial characteristics on perceived success in familyfarms using the Resource-Based Theory and Entrepreneurial Orientation perspectives. Resources and entrepreneurial orientation are used to identify success perceptions. Confirmatory factor analysis and structural equation modelling were applied to the survey data of 805 Finnish family farmers. Family farmers rate their skills as good, and their abilities of proactiveness and self-realization success as high. The results suggest that both resources and entrepreneurial orientation affect the perceived success of family farmers, although the role of entrepreneurial orientation is relatively small. Co-variability between resources and entrepreneurial orientation is positive, addressingthe change towards the same direction. This study promotes the understanding of the family perspective and its role in the successful use of resources and entrepreneurial capabilities in farming and offers a developed construct for family farm business research.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140999197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Red clover is typically produced as a mixed stand with grasses, which may lead to suboptimal fertilization and harvest time practices, resulting in poor survival of red clover. Further, unknown proportions of red clover in mixed swards complicate ration formulation for livestock. Thus, producing red clover as pure stands could offer benefits, but it may be difficult to ensile. The objective of the current study was to evaluate major management possibilities such as wilting, inclusion of timothy grass and different types of additives in optimizing the ensilage of red clover. Low DM silages were poorly preserved with high pH, elevated acetic acid concentrations and proportions of ammonia-N in total N, as well as depleted water-soluble carbohydrate levels. Moderate wilting clearly improved the fermentation quality of silages. Further, the use of formic acid-based additives improved the fermentation quality of the silages, the effect being more pronounced in the low than medium dry matter silages. The composition of red clover and timothy were rather similar regarding dry matter content and ensilability. This was probably the reason why clear benefits in silage quality from timothy inclusion could not be demonstrated.
{"title":"Evaluating the effects of wilting, mixing with timothy and silage additive application on red clover silage quality","authors":"M. Rinne, Marcia Franco, K. Manni, A. Huuskonen","doi":"10.23986/afsci.137136","DOIUrl":"https://doi.org/10.23986/afsci.137136","url":null,"abstract":"Red clover is typically produced as a mixed stand with grasses, which may lead to suboptimal fertilization and harvest time practices, resulting in poor survival of red clover. Further, unknown proportions of red clover in mixed swards complicate ration formulation for livestock. Thus, producing red clover as pure stands could offer benefits, but it may be difficult to ensile. The objective of the current study was to evaluate major management possibilities such as wilting, inclusion of timothy grass and different types of additives in optimizing the ensilage of red clover. Low DM silages were poorly preserved with high pH, elevated acetic acid concentrations and proportions of ammonia-N in total N, as well as depleted water-soluble carbohydrate levels. Moderate wilting clearly improved the fermentation quality of silages. Further, the use of formic acid-based additives improved the fermentation quality of the silages, the effect being more pronounced in the low than medium dry matter silages. The composition of red clover and timothy were rather similar regarding dry matter content and ensilability. This was probably the reason why clear benefits in silage quality from timothy inclusion could not be demonstrated.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138968063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joonas Mäkinen, Sari Himanen, Stéphanie Saussure, P. Kivijärvi, Janne Kaseva, James Blande
This study assessed how strip cropping white cabbage (Brassica oleracea) and faba bean (Vicia faba) affects the activity density of pests – diamondback moth (Plutella xylostella) and flea beetles (Phyllotreta spp.) – and how this affects crop yields. The setup consisted of three 270m2 plots representing monocrops of faba bean and cabbage, and a plot of alternating strips of the two. The setup was established in 2018 and 2019. Activity density of P. xylostella was determined through yellow sticky trapping and Phyllotreta spp. activity density was determined by pitfall trapping. Crop yields were determined at harvest, and foliar damage to cabbage leaves was also assessed. The results showed that strip cropping reduced the activity density of P. xylostella, but no suppression effect was observed for Phyllotreta spp. Average foliar damage to cabbage was higher in the strip crop plot, but in 2018 the yield was also higher. Average faba bean yield was lower in the strip crop plot in both years. Our results indicate potential for cabbage-faba bean strip cropping to reduce the activity density of P. xylostella but not Phyllotreta spp. and to increase cabbage yield when overall pest pressure is moderate, but at the cost of faba bean yield. The case study shows that a Brassica vegetable – legume strip cropping system has potential for pest suppression in northern conditions, but agronomic compatibility of crop plants needs attention to ensure similar or higher productivity than a monocrop system.
{"title":"Can strip cropping reduce pest activity density and damage while increasing yield? A case study of organic cabbage and faba bean","authors":"Joonas Mäkinen, Sari Himanen, Stéphanie Saussure, P. Kivijärvi, Janne Kaseva, James Blande","doi":"10.23986/afsci.131638","DOIUrl":"https://doi.org/10.23986/afsci.131638","url":null,"abstract":"This study assessed how strip cropping white cabbage (Brassica oleracea) and faba bean (Vicia faba) affects the activity density of pests – diamondback moth (Plutella xylostella) and flea beetles (Phyllotreta spp.) – and how this affects crop yields. The setup consisted of three 270m2 plots representing monocrops of faba bean and cabbage, and a plot of alternating strips of the two. The setup was established in 2018 and 2019. Activity density of P. xylostella was determined through yellow sticky trapping and Phyllotreta spp. activity density was determined by pitfall trapping. Crop yields were determined at harvest, and foliar damage to cabbage leaves was also assessed. The results showed that strip cropping reduced the activity density of P. xylostella, but no suppression effect was observed for Phyllotreta spp. Average foliar damage to cabbage was higher in the strip crop plot, but in 2018 the yield was also higher. Average faba bean yield was lower in the strip crop plot in both years. Our results indicate potential for cabbage-faba bean strip cropping to reduce the activity density of P. xylostella but not Phyllotreta spp. and to increase cabbage yield when overall pest pressure is moderate, but at the cost of faba bean yield. The case study shows that a Brassica vegetable – legume strip cropping system has potential for pest suppression in northern conditions, but agronomic compatibility of crop plants needs attention to ensure similar or higher productivity than a monocrop system.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139002721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Field application of gypsum (CaSO4 × 2H2O) is a tool to decrease phosphorus (P) load to watercourses. Effects of gypsum application (4 tons ha-1) on soil and crop composition were monitored up to four years after the treatment in the Savijoki catchment, southwestern Finland. Eleven amended fields and 17 control fields were analyzed for easily soluble P, Ca, Mg, K, S, pH(H2O), electrical conductivity (EC) and loss-on-ignition. Plant samples were analyzed for most nutrients and Se. Downward S transport was monitored in two fields. In the first spring after gypsum application, but not later, S concentrations and EC were substantially but not harmfully elevated in the plough layer, with no other significant effects on soil composition. Sulfur leached out slightly less rapidly from clay than from the coarse mineral soil. Plant S concentration increased for the first and the second year. In conclusion, gypsum application did not have adverse effects on soil or crop chemical composition in this survey of predominantly clay soils.
{"title":"Gypsum amendment influences soil and plant chemical composition temporarily","authors":"Markku Yli-Halla, Antti Taskinen, Petri Ekholm","doi":"10.23986/afsci.131550","DOIUrl":"https://doi.org/10.23986/afsci.131550","url":null,"abstract":"Field application of gypsum (CaSO4 × 2H2O) is a tool to decrease phosphorus (P) load to watercourses. Effects of gypsum application (4 tons ha-1) on soil and crop composition were monitored up to four years after the treatment in the Savijoki catchment, southwestern Finland. Eleven amended fields and 17 control fields were analyzed for easily soluble P, Ca, Mg, K, S, pH(H2O), electrical conductivity (EC) and loss-on-ignition. Plant samples were analyzed for most nutrients and Se. Downward S transport was monitored in two fields. In the first spring after gypsum application, but not later, S concentrations and EC were substantially but not harmfully elevated in the plough layer, with no other significant effects on soil composition. Sulfur leached out slightly less rapidly from clay than from the coarse mineral soil. Plant S concentration increased for the first and the second year. In conclusion, gypsum application did not have adverse effects on soil or crop chemical composition in this survey of predominantly clay soils.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135327673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study examined the long-term effects of applying structure lime (mixture of ~80% CaCO3 and 20% Ca(OH)2) and ground limestone (CaCO3) on soil aggregate stability and risk of phosphorus (P) losses 5–7 years after liming, incidence of soil-borne diseases and yield in winter wheat (Tritium aestivum), oilseed rape (Brassica napus) and sugar beet (Beta vulgaris). Lime was applied in 13 field trials in Sweden 2013–2015 and soil characteristics and crop yield were monitored until 2021. Seedbed (0–4 cm depth) aggregate (2–5 mm size) stability was improved to the same extent with both lime treatments compared to the untreated control, sampled 5–7 years after liming. Analyses and estimations of different P fractions (total P, PO4-P, and particulate P) in leachate following simulated rainfall events on undisturbed topsoil cores sampled 6–8 years after liming revealed lower total P and particulate P concentrations in both lime treatments compared to the untreated control. Two sugar beet trial sites with soil pH ≤7.2 before liming showed an increase in sugar yield for structure lime and ground limestone as an effect of increased concentration of soil potassium (K-AL) and/or lower Aphanomyces root rot potential compared to the untreated control. The yield of winter wheat was not affected by the application of either type of lime at sites with pH >7.2 but the yield of oilseed rape decreased after the application of structure lime.
{"title":"Long-term effects of liming on crop yield, plant diseases, soil structure and risk of phosphorus leaching","authors":"Åsa Olsson Nyström, Jens Blomquist, Lars Persson, Anita Gunnarsson, Kerstin Berglund","doi":"10.23986/afsci.130983","DOIUrl":"https://doi.org/10.23986/afsci.130983","url":null,"abstract":"This study examined the long-term effects of applying structure lime (mixture of ~80% CaCO3 and 20% Ca(OH)2) and ground limestone (CaCO3) on soil aggregate stability and risk of phosphorus (P) losses 5–7 years after liming, incidence of soil-borne diseases and yield in winter wheat (Tritium aestivum), oilseed rape (Brassica napus) and sugar beet (Beta vulgaris). Lime was applied in 13 field trials in Sweden 2013–2015 and soil characteristics and crop yield were monitored until 2021. Seedbed (0–4 cm depth) aggregate (2–5 mm size) stability was improved to the same extent with both lime treatments compared to the untreated control, sampled 5–7 years after liming. Analyses and estimations of different P fractions (total P, PO4-P, and particulate P) in leachate following simulated rainfall events on undisturbed topsoil cores sampled 6–8 years after liming revealed lower total P and particulate P concentrations in both lime treatments compared to the untreated control. Two sugar beet trial sites with soil pH ≤7.2 before liming showed an increase in sugar yield for structure lime and ground limestone as an effect of increased concentration of soil potassium (K-AL) and/or lower Aphanomyces root rot potential compared to the untreated control. The yield of winter wheat was not affected by the application of either type of lime at sites with pH >7.2 but the yield of oilseed rape decreased after the application of structure lime.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135828261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anne Nissinen, Satu Latvala, Isa Lindqvist, Päivi Parikka, Raija Kumpula, Kati Rikala, James Blande
Drosophila suzukii, known as the spotted wing drosophila (SWD), is a major pest of berries and stone fruits. In 2014 it was recorded for the first time in the Nordic countries. In this study, we report the first observations of D. suzukii in Finland. The first trap catches of SWD were observed in 2019 in North Savo at a berry farm that handles imported berries. In 2020–2021, no adult flies were trapped at or near the farm, but in August 2022, adult SWDs were caught at the same farm. In 2023, one female of the same haplotype as the flies in previous year was found in mid July, but no further population growth was observed. This suggests that some overwintering events may happen, but lack of overwintered males may hinder the population growth. In 2021–2022, larvae and eggs of SWD were found in several batches of imported berries. Our results suggest that there is a pathway of introduction for SWD up to the farm level. Observed SWD adults in 2022 probably originated from a new introduction rather than an overwintered population, because no SWDs were observed during the two preceding seasons. Identification of D. suzukii specimens was confirmed with PCR and sequencing of the COI region, and four SWD haplotypes were found.
{"title":"First observations of Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) suggest that it is a transient species in Finland","authors":"Anne Nissinen, Satu Latvala, Isa Lindqvist, Päivi Parikka, Raija Kumpula, Kati Rikala, James Blande","doi":"10.23986/afsci.130404","DOIUrl":"https://doi.org/10.23986/afsci.130404","url":null,"abstract":"Drosophila suzukii, known as the spotted wing drosophila (SWD), is a major pest of berries and stone fruits. In 2014 it was recorded for the first time in the Nordic countries. In this study, we report the first observations of D. suzukii in Finland. The first trap catches of SWD were observed in 2019 in North Savo at a berry farm that handles imported berries. In 2020–2021, no adult flies were trapped at or near the farm, but in August 2022, adult SWDs were caught at the same farm. In 2023, one female of the same haplotype as the flies in previous year was found in mid July, but no further population growth was observed. This suggests that some overwintering events may happen, but lack of overwintered males may hinder the population growth. In 2021–2022, larvae and eggs of SWD were found in several batches of imported berries. Our results suggest that there is a pathway of introduction for SWD up to the farm level. Observed SWD adults in 2022 probably originated from a new introduction rather than an overwintered population, because no SWDs were observed during the two preceding seasons. Identification of D. suzukii specimens was confirmed with PCR and sequencing of the COI region, and four SWD haplotypes were found.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135150380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The horse industry today in Europe is an increasing leisure or sporting activity. Due to considerable input of nutrientsvia dung and urine, horse paddocks can be significant sources of greenhouse gases (GHG) and reactive nitrogen (N)-gases. However, horse paddocks have not been studied intensively in contrast to e.g., dairy cow pastures. Here we report GHG emissions from one selected horse paddock in Eastern Finland. During the first year, GHG emissions from the site and surrounding grassland area were measured with closed static chamber method. In the following year soil samples were taken from the sites to study GHG emission and reactive N-gas (nitrous acid and nitric oxide) emissions in the laboratory. The paddock area emitted significant amounts of N-gases and methane compared with surrounding areas during wet season. N-gas emissions also increased with increasing soil mineral N concentration. We conclude that horse paddocks can be significant but local sources of greenhouse gases and wet soil conditions should be avoided to mitigate the emissions.
{"title":"Greenhouse gas and reactive N-gas emissions from a horse paddock – relationship to physicochemical properties of soil","authors":"M. Maljanen, Emilia Marttila, Hem Raj Bhattarai","doi":"10.23986/afsci.130086","DOIUrl":"https://doi.org/10.23986/afsci.130086","url":null,"abstract":"The horse industry today in Europe is an increasing leisure or sporting activity. Due to considerable input of nutrientsvia dung and urine, horse paddocks can be significant sources of greenhouse gases (GHG) and reactive nitrogen (N)-gases. However, horse paddocks have not been studied intensively in contrast to e.g., dairy cow pastures. Here we report GHG emissions from one selected horse paddock in Eastern Finland. During the first year, GHG emissions from the site and surrounding grassland area were measured with closed static chamber method. In the following year soil samples were taken from the sites to study GHG emission and reactive N-gas (nitrous acid and nitric oxide) emissions in the laboratory. The paddock area emitted significant amounts of N-gases and methane compared with surrounding areas during wet season. N-gas emissions also increased with increasing soil mineral N concentration. We conclude that horse paddocks can be significant but local sources of greenhouse gases and wet soil conditions should be avoided to mitigate the emissions.","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86309533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Inese Huttunen, M. Huttunen, T. Salo, P. Mattila, Liisa Maanavilja, Tarja Silfver
The national scale nutrient load modelling system VEMALA-ICECREAM was used to simulate agricultural total nitrogen(TN) loading and its trends for all Finnish watersheds for the period from 1990–2019. Across Finland, agricultural TN loading (ATNL) has decreased from 17.4 kg ha-1 a-1 to 14.4 kg ha-1 a-1 (moving 10-year averages) since the 1990s. The main driver of the decrease in simulated ATNL is a reduction in mineral fertilizer use, which has decreased the N surplus in the soils. The TN leached fraction, however, did not show a trend but did have high annual variability due to variations in runoff; this corresponds to an average of 14.4% of the TN applied. The ATNL was considerably higher in the Archipelago Sea catchment compared to other Finnish Baltic Sea sub-catchments, with the lowest ATNL found in the Vuoksi catchment in Eastern Finland. The highest decrease of ATNL was simulated for Vuoksi and Gulf of Finland catchments. In the Bothnian Sea, Bothnian Bay and Archipelago Sea catchments, the decreasing trend of ATNL was smaller but still significant, with the exception of the Quark catchment, where there was no significant change. The differences in decreasing trends between regions can be explained by the heterogeneity of catchment characteristics, hydrology and agricultural practices in different regions.
使用国家尺度养分负荷模拟系统VEMALA-ICECREAM模拟1990-2019年芬兰所有流域的农业总氮(TN)负荷及其趋势。自20世纪90年代以来，整个芬兰的农业TN负荷(ATNL)从17.4 kg ha- 1a -1下降到14.4 kg ha- 1a -1(移动10年平均值)。模拟ATNL减少的主要驱动因素是减少矿物肥料的使用，这减少了土壤中的N剩余。然而，全氮淋溶分数没有表现出趋势，但由于径流的变化而具有较高的年变率;这相当于平均施用总氮的14.4%。与芬兰波罗的海其他子集水区相比，群岛海集水区的ATNL要高得多，芬兰东部的Vuoksi集水区的ATNL最低。voksi流域和芬兰湾流域的ATNL下降幅度最大。在Bothnian Sea、Bothnian Bay和Archipelago Sea集水区，除Quark集水区ATNL没有显著变化外，ATNL的下降趋势较小，但仍然显著。区域间减少趋势的差异可以用流域特征、水文和农业实践的异质性来解释。
{"title":"National-scale nitrogen loading from the Finnish agricultural fields has decreased since the 1990s","authors":"Inese Huttunen, M. Huttunen, T. Salo, P. Mattila, Liisa Maanavilja, Tarja Silfver","doi":"10.23986/afsci.125385","DOIUrl":"https://doi.org/10.23986/afsci.125385","url":null,"abstract":"The national scale nutrient load modelling system VEMALA-ICECREAM was used to simulate agricultural total nitrogen(TN) loading and its trends for all Finnish watersheds for the period from 1990–2019. Across Finland, agricultural TN loading (ATNL) has decreased from 17.4 kg ha-1 a-1 to 14.4 kg ha-1 a-1 (moving 10-year averages) since the 1990s. The main driver of the decrease in simulated ATNL is a reduction in mineral fertilizer use, which has decreased the N surplus in the soils. The TN leached fraction, however, did not show a trend but did have high annual variability due to variations in runoff; this corresponds to an average of 14.4% of the TN applied. The ATNL was considerably higher in the Archipelago Sea catchment compared to other Finnish Baltic Sea sub-catchments, with the lowest ATNL found in the Vuoksi catchment in Eastern Finland. The highest decrease of ATNL was simulated for Vuoksi and Gulf of Finland catchments. In the Bothnian Sea, Bothnian Bay and Archipelago Sea catchments, the decreasing trend of ATNL was smaller but still significant, with the exception of the Quark catchment, where there was no significant change. The differences in decreasing trends between regions can be explained by the heterogeneity of catchment characteristics, hydrology and agricultural practices in different regions.\u0000 ","PeriodicalId":7393,"journal":{"name":"Agricultural and Food Science","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90336806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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