A. Semenov, D. Đukić, L. Mandić, Vesna Đurović, A. Glinushkin
This study compares and discusses two farming systems that differ in content - organic and conventional (intensive) systems. In this regard, a modern definition of soil content is proposed, with the "soil ecosystem" concept used as the modern alternative to the traditional representation of what the soil is. Some features of the functioning of soil ecosystems in the two different farming systems, conventional and organic, are examined. The inner essence and the external performance of these two alternative land-use systems are revealed. The importance of the development of organic agriculture is emphasized by the documents of international organizations (IFOAM). The tasks that need to be addressed during the transition to a knowledge-intensive system of production of environmentally friendly agricultural products under organic farming conditions are briefly listed. The focus is on those aspects that are important in the transition from intensive to organic farming. The need to introduce a new characteristic of soil ecosystems - soil health - is discussed. A modern definition of "soil health" is given. The positive impact of organic farming and its technologies on soil health is discussed. The list of actions for the continuous maintenance and reproduction of soil health is presented. Much attention is paid to soil health maintenance, remediation and rehabilitation. The problems of protecting plants and crops from harmful organisms in organic farming are discussed. The phenomenon "oligotrophication of agro ecosystems" as an unconventional way of healing and maintaining the health of soil ecosystems is considered and discussed. The thesis about the necessity to consider soil quality and fertility as components of the new characteristic - "soil health" - is proposed.
{"title":"Organic farming as the basis for the long-term health of the soil ecosystem","authors":"A. Semenov, D. Đukić, L. Mandić, Vesna Đurović, A. Glinushkin","doi":"10.5937/aaser2152131s","DOIUrl":"https://doi.org/10.5937/aaser2152131s","url":null,"abstract":"This study compares and discusses two farming systems that differ in content - organic and conventional (intensive) systems. In this regard, a modern definition of soil content is proposed, with the \"soil ecosystem\" concept used as the modern alternative to the traditional representation of what the soil is. Some features of the functioning of soil ecosystems in the two different farming systems, conventional and organic, are examined. The inner essence and the external performance of these two alternative land-use systems are revealed. The importance of the development of organic agriculture is emphasized by the documents of international organizations (IFOAM). The tasks that need to be addressed during the transition to a knowledge-intensive system of production of environmentally friendly agricultural products under organic farming conditions are briefly listed. The focus is on those aspects that are important in the transition from intensive to organic farming. The need to introduce a new characteristic of soil ecosystems - soil health - is discussed. A modern definition of \"soil health\" is given. The positive impact of organic farming and its technologies on soil health is discussed. The list of actions for the continuous maintenance and reproduction of soil health is presented. Much attention is paid to soil health maintenance, remediation and rehabilitation. The problems of protecting plants and crops from harmful organisms in organic farming are discussed. The phenomenon \"oligotrophication of agro ecosystems\" as an unconventional way of healing and maintaining the health of soil ecosystems is considered and discussed. The thesis about the necessity to consider soil quality and fertility as components of the new characteristic - \"soil health\" - is proposed.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193785","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}
V. Petričević, M. Lukić, Z. Škrbić, M. Petričević, S. Bogosavljević-Bošković, V. Dosković, S. Rakonjac
www.afc.kg.ac.rs The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens Veselin Petričević1*, Miloš Lukić1, Zdenka Škrbić1, Maja Petričević1, Snežana Bogosavljević-Bošković2, Vladimir Dosković2, Simeon Rakonjac2 1Institute for Animal Husbandry, Autoput 16, 11080, Belgrade–Zemun, Republic of Serbia 2Faculty of Agronomy in Čačak, University of Kragujevac, Čacak, Republic of Serbia *Corresponding author: veselin5@live.com Received 10 October 2020; Accepted 19 November 2020 A B S T R A C T The study objective was to examine the effect of the addition of different concentrations of a mixture of three plants (garlic, mint and rosemary) in the diet of broiler chickens on production and slaughter results. The mixture was formed by grinding plants after drying and mixing them in a ratio of 1: 1: 1. The experiment was performed on 600 chickens divided into 4 groups with 3 replicates per group. The chickens were fed at will and the composition of the diet differed only in the amount of added mixture. No mixture was added in control group (C). Group MIX-I chickens consumed a diet supplemented with 0.25% of the mixture, group MIX-II diet contained 0.5% of the mixture supplement, while group MIX-III broilers received 0.75% of the mixture in their diet. At the end of the experimental period, at the age of 42 days, the body weight of the chickens was measured. Mortality, feed conversion and EPEF were determined. At the end of the experiment, 12 chickens (6 males and 6 females) were sacrificed by random sampling from each group in order to determine slaughter results. The obtained results showed that the use of the mixture of three plants had a positive effect on the production parameters. MIX-II group chickens had significantly higher (p<0.01) body weights, better feed conversion and significantly higher (p<0.01) EPEF values compared with C group. No significant differences in slaughter performances were found.
{"title":"The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens","authors":"V. Petričević, M. Lukić, Z. Škrbić, M. Petričević, S. Bogosavljević-Bošković, V. Dosković, S. Rakonjac","doi":"10.5937/AASER2050149P","DOIUrl":"https://doi.org/10.5937/AASER2050149P","url":null,"abstract":"www.afc.kg.ac.rs The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens Veselin Petričević1*, Miloš Lukić1, Zdenka Škrbić1, Maja Petričević1, Snežana Bogosavljević-Bošković2, Vladimir Dosković2, Simeon Rakonjac2 1Institute for Animal Husbandry, Autoput 16, 11080, Belgrade–Zemun, Republic of Serbia 2Faculty of Agronomy in Čačak, University of Kragujevac, Čacak, Republic of Serbia *Corresponding author: veselin5@live.com Received 10 October 2020; Accepted 19 November 2020 A B S T R A C T The study objective was to examine the effect of the addition of different concentrations of a mixture of three plants (garlic, mint and rosemary) in the diet of broiler chickens on production and slaughter results. The mixture was formed by grinding plants after drying and mixing them in a ratio of 1: 1: 1. The experiment was performed on 600 chickens divided into 4 groups with 3 replicates per group. The chickens were fed at will and the composition of the diet differed only in the amount of added mixture. No mixture was added in control group (C). Group MIX-I chickens consumed a diet supplemented with 0.25% of the mixture, group MIX-II diet contained 0.5% of the mixture supplement, while group MIX-III broilers received 0.75% of the mixture in their diet. At the end of the experimental period, at the age of 42 days, the body weight of the chickens was measured. Mortality, feed conversion and EPEF were determined. At the end of the experiment, 12 chickens (6 males and 6 females) were sacrificed by random sampling from each group in order to determine slaughter results. The obtained results showed that the use of the mixture of three plants had a positive effect on the production parameters. MIX-II group chickens had significantly higher (p<0.01) body weights, better feed conversion and significantly higher (p<0.01) EPEF values compared with C group. No significant differences in slaughter performances were found.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"25 1","pages":"149-152"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193581","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}
B. Milošević, V. Mihailović, Đ. Karagić, S. Vasiljević, D. Milić, Gordana Petrović, S. Katanski, D. Živanov, A. Mikić, I. Đalović, Anja Dolapčev, A. Uhlarik
Institute of Field and Vegetable Crops, Maksima Gorkog 30,21000 Novi Sad, Serbia *Corresponding author: branko.milosevic83@gmail.com Received 3 March 2020; Accepted 2 November 2020 A B S T R A C T Field peas are mostly used for animal nutrition in the Balkan region and in the countries of the former USSR, while in the countries of Western Europe, Canada, the USA and the Middle East they are mostly used for human nutrition. Over three years (2010–2012), the yield and grain yield components of the most widespread field pea varieties were examined. The lowest number of plants was determined in ‘NS Junior’ intended for combined use (65 plants/m2), while ‘Dukat’ and ‘Partner’ had 88 and 85 plants/m2 on average, respectively. The average stem height was 158 cm for ‘NS Junior’ , and 65 and 70 cm for ‘Dukat’ and ‘Partner’, respectively. ‘Dukat’ (4846 kg/ha) and ‘Partner’ (4521 kg/ha) had significantly higher grain yields compared with ‘NS Junior’ (2717 kg/ha). The content of crude protein in the grain was highest in ‘NS Junior’ (27.6%), while ‘Dukat’ and ‘Partner’ had lower contents (23–25%).
{"title":"Grain yield potential of spring dry pea varieties","authors":"B. Milošević, V. Mihailović, Đ. Karagić, S. Vasiljević, D. Milić, Gordana Petrović, S. Katanski, D. Živanov, A. Mikić, I. Đalović, Anja Dolapčev, A. Uhlarik","doi":"10.5937/AASER2050153M","DOIUrl":"https://doi.org/10.5937/AASER2050153M","url":null,"abstract":"Institute of Field and Vegetable Crops, Maksima Gorkog 30,21000 Novi Sad, Serbia *Corresponding author: branko.milosevic83@gmail.com Received 3 March 2020; Accepted 2 November 2020 A B S T R A C T Field peas are mostly used for animal nutrition in the Balkan region and in the countries of the former USSR, while in the countries of Western Europe, Canada, the USA and the Middle East they are mostly used for human nutrition. Over three years (2010–2012), the yield and grain yield components of the most widespread field pea varieties were examined. The lowest number of plants was determined in ‘NS Junior’ intended for combined use (65 plants/m2), while ‘Dukat’ and ‘Partner’ had 88 and 85 plants/m2 on average, respectively. The average stem height was 158 cm for ‘NS Junior’ , and 65 and 70 cm for ‘Dukat’ and ‘Partner’, respectively. ‘Dukat’ (4846 kg/ha) and ‘Partner’ (4521 kg/ha) had significantly higher grain yields compared with ‘NS Junior’ (2717 kg/ha). The content of crude protein in the grain was highest in ‘NS Junior’ (27.6%), while ‘Dukat’ and ‘Partner’ had lower contents (23–25%).","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"25 1","pages":"153-157"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193589","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}
Z. Stojiljkovic, Jelena Vanovac, M. Peševski, J. Stojiljkovic, D. Đukić
Given the accelerated technical and technological development in the field of agricultural production of the 21st century, which aims to increase production quantitatively, the quality of primary agricultural products is in many cases unfairly neglected. This has directly aroused consumer awareness of the inevitable transition to purchasing products from alternative production methods (self-produced "healthy food", organic food production). For these reasons, the consumer alternative is to switch to environmentally friendly and health-safe products obtained from agricultural production and to use them in the future. A very promising product of this kind in the Republic of Serbia is vermicompost. Vermicompost is widely used in primary agricultural production: fruits and vegetables, mushroom production, horticulture, nurseries, green areas, parks, green sports fields, and in all segments of organic plant production. The benefits that farmers have from using vermicompost are a prerequisite for this product to be marketed in Serbia. This paper describes the benefits for both vermicompost manufacturers and consumers and the wider community.
{"title":"Economic aspects of vermicompost production in southern Serbia","authors":"Z. Stojiljkovic, Jelena Vanovac, M. Peševski, J. Stojiljkovic, D. Đukić","doi":"10.5937/aaser2049019s","DOIUrl":"https://doi.org/10.5937/aaser2049019s","url":null,"abstract":"Given the accelerated technical and technological development in the field of agricultural production of the 21st century, which aims to increase production quantitatively, the quality of primary agricultural products is in many cases unfairly neglected. This has directly aroused consumer awareness of the inevitable transition to purchasing products from alternative production methods (self-produced \"healthy food\", organic food production). For these reasons, the consumer alternative is to switch to environmentally friendly and health-safe products obtained from agricultural production and to use them in the future. A very promising product of this kind in the Republic of Serbia is vermicompost. Vermicompost is widely used in primary agricultural production: fruits and vegetables, mushroom production, horticulture, nurseries, green areas, parks, green sports fields, and in all segments of organic plant production. The benefits that farmers have from using vermicompost are a prerequisite for this product to be marketed in Serbia. This paper describes the benefits for both vermicompost manufacturers and consumers and the wider community.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"25 1","pages":"19-25"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193610","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}
Gordana Petrović, D. Karabašević, Svetlana Vukotić, Vuk Mirčetić, A. Radosavac
The aim of the paper is to show the impact of climate factors on the corn yield in Serbia. Contemporary climate reports show that climate is changing, and the emission of greenhouse gases is one of the main causes of climate change. In three different locations (West Backa District, Sumadija District and Nisava District) different climatic conditions and corn yield were analyzed for the period from 1991 to 2011. In the research process, the model of multiple linear regression and Pearson coefficient of correlation was applied. Obtained results has shown that there is a high correlation between parameters of climate conditions and variance of corn yield. A small amount of precipitation quantity and high maximum values of temperatures in the vegetation period influenced the decrease in yield, which was particularly noticed during the period from 2000 to 2007. A lower yield of corn was established compared to the average yield in all three observed districts, in the Sumadija district, the yield was lower 48% in 2000 and 52% in 2007, in the West Backa District, a yield was lower 40% in 2000 and 20% in 2007, and in the Nisava District, the yield was lower 65% in 2000 and 49% in 2007. There are perennial variations of climatic factors, especially temperature and precipitation quantity, which affect the realization of the economic profitability of growing agricultural plant species. Losses in agriculture can be higher in conditions of an unstable climate. It is necessary to more precisely predict climate change and create new hybrids and varieties for cultivation that will be adaptable to changed climate conditions. Adaptations of plants to climatic conditions changes will contribute to greater economy of agricultural production, and the provision of food for the world's population.
{"title":"The impact of climate change on the corn yield in Serbia","authors":"Gordana Petrović, D. Karabašević, Svetlana Vukotić, Vuk Mirčetić, A. Radosavac","doi":"10.5937/AASER2050133P","DOIUrl":"https://doi.org/10.5937/AASER2050133P","url":null,"abstract":"The aim of the paper is to show the impact of climate factors on the corn yield in Serbia. Contemporary climate reports show that climate is changing, and the emission of greenhouse gases is one of the main causes of climate change. In three different locations (West Backa District, Sumadija District and Nisava District) different climatic conditions and corn yield were analyzed for the period from 1991 to 2011. In the research process, the model of multiple linear regression and Pearson coefficient of correlation was applied. Obtained results has shown that there is a high correlation between parameters of climate conditions and variance of corn yield. A small amount of precipitation quantity and high maximum values of temperatures in the vegetation period influenced the decrease in yield, which was particularly noticed during the period from 2000 to 2007. A lower yield of corn was established compared to the average yield in all three observed districts, in the Sumadija district, the yield was lower 48% in 2000 and 52% in 2007, in the West Backa District, a yield was lower 40% in 2000 and 20% in 2007, and in the Nisava District, the yield was lower 65% in 2000 and 49% in 2007. There are perennial variations of climatic factors, especially temperature and precipitation quantity, which affect the realization of the economic profitability of growing agricultural plant species. Losses in agriculture can be higher in conditions of an unstable climate. It is necessary to more precisely predict climate change and create new hybrids and varieties for cultivation that will be adaptable to changed climate conditions. Adaptations of plants to climatic conditions changes will contribute to greater economy of agricultural production, and the provision of food for the world's population.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"62 22 1","pages":"133-140"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193552","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}
V. Radojičić, S. Alagić, Lazar Pejić, Jovanka G. Lalicic-Petronijevic
Filtration is one way of purification of tobacco smoke. The aim of this study was to examine the potential filtration effects of zeolites Y and ZSM-5, with different degree of crystallinity and in two modes of application (as a segment or as a powder added longitudinally with the filter fibers). Zeolites were added in the quantity of 60 mg. Degree of filter efficiency and sorption capacity has been determined in regard to several hazardous constituents of mainstream tobacco smoke such as: tar, carbon monoxide and nicotine. Composition of mainstream tobacco smoke was determined by using standard ISO methods. Experimental results showed that both, the type and the mode of the zeolite application affected the efficiency of smoke filtration. Zeolite Y, which was longitudinally applied to the filter, is shown to be the most effective. It was found 58.82% reduction of nicotine, 66.86% of tar and 86.24% of CO. During segmental application of zeolites, the blocking effect was observed.
{"title":"Effect of type and mode of zeolite application on the cigarette filters efficiency and sorption capacity","authors":"V. Radojičić, S. Alagić, Lazar Pejić, Jovanka G. Lalicic-Petronijevic","doi":"10.5937/AASER2050159R","DOIUrl":"https://doi.org/10.5937/AASER2050159R","url":null,"abstract":"Filtration is one way of purification of tobacco smoke. The aim of this study was to examine the potential filtration effects of zeolites Y and ZSM-5, with different degree of crystallinity and in two modes of application (as a segment or as a powder added longitudinally with the filter fibers). Zeolites were added in the quantity of 60 mg. Degree of filter efficiency and sorption capacity has been determined in regard to several hazardous constituents of mainstream tobacco smoke such as: tar, carbon monoxide and nicotine. Composition of mainstream tobacco smoke was determined by using standard ISO methods. Experimental results showed that both, the type and the mode of the zeolite application affected the efficiency of smoke filtration. Zeolite Y, which was longitudinally applied to the filter, is shown to be the most effective. It was found 58.82% reduction of nicotine, 66.86% of tar and 86.24% of CO. During segmental application of zeolites, the blocking effect was observed.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"25 1","pages":"159-164"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193598","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}
M. Grcak, D. Grcak, Aleksandra Penjišević, Dušan J. Simjanović, B. Orbović, N. Đukić, V. Rajičić
1University of Priština, Faculty of Agriculture, Kosovska Mitrovica – Lešak, Kopaonička bb, 38219 Lešak, Kosovo and Metohia, Serbia. 2University Union-Nikola Tesla, Faculty of Management, Njegoševa 1a, 21205 Sremski Karlovci, Serbia. 3Faculty of Information Technology, Metropolitan University, Tadeuša Košćuška 63, 11000 Belgrade, Serbia. 4Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia. 5University of Kragujevac, Faculty of Natural Science, Radoja Domanovića 12, 34000 Kragujevac, Serbia. 6University of Niš, Faculty of Agriculture, Kosančićeva 4,37000 Kruševac, Serbia *Corresponding author: milosavgrcak@gmail.com Received 30 May 2020; Accepted 14 September 2020 A B S T R A C T The total area under cereals during 2018 remained at a long-term stable level of about 1.7 million hectares. Maize and wheat are the most important crops grown in the Republic of Serbia. In the structure of harvested areas under cereals, maize dominates (53%), followed by wheat (38%). The objective of this paper was to determine if there was a recognisable trend line for the production of these crops in the 2007–2018 period. The yield data (Area harvested (ha), Production (tonnes), Production (t/ha)) were collected from the Statistical Office of the Republic of Serbia. Calculations of relevant and valid trends using central tendency measures, dispersion measures, relative ratios and percentage growth were used for statistical data processing. During the observation period, the average annual growth in maize yield was 6.38%, while the average annual growth in wheat yield was slightly lower, 2.00%. However, it is not possible to create an appropriate trend line for any of the variables in order to predict a future time period, since the coefficient of determination is low.
1科索沃米特罗维察Priština大学农学院Lešak，科波奥尼卡布，38219 Lešak，科索沃和梅托希亚。2大学联盟尼古拉特斯拉管理学院，Njegoševa 1a, 21205斯雷姆斯基卡尔洛夫奇。3城市大学信息技术学院，Tadeuša Košćuška 63,11000贝尔格莱德。4大田和蔬菜作物研究所，Maksima Gorkog 30, 21000诺维萨德。5克拉古耶瓦茨大学自然科学学院，6尼日什大学农学院，Kosančićeva 4,37000 Kruševac，塞尔维亚*通讯作者:milosavgrcak@gmail.comA B S T R A C T 2018年谷物种植总面积保持在170万公顷左右的长期稳定水平。玉米和小麦是塞尔维亚共和国最重要的作物。在谷类作物的收获面积结构中，玉米占主导地位(53%)，其次是小麦(38%)。本文的目的是确定2007-2018年期间这些作物的生产是否存在可识别的趋势线。产量数据(收获面积(公顷)、产量(吨)、产量(吨/公顷))是从塞尔维亚共和国统计局收集的。统计数据处理使用集中趋势测量、分散测量、相对比率和百分比增长来计算相关和有效的趋势。观察期内，玉米产量年均增长6.38%，小麦产量年均增长略低，为2.00%。然而，不可能为任何变量创建一条适当的趋势线，以便预测未来的时间段，因为决定系数很低。
{"title":"The trends in maize and wheat production in the Republic of Serbia","authors":"M. Grcak, D. Grcak, Aleksandra Penjišević, Dušan J. Simjanović, B. Orbović, N. Đukić, V. Rajičić","doi":"10.5937/AASER2050121G","DOIUrl":"https://doi.org/10.5937/AASER2050121G","url":null,"abstract":"1University of Priština, Faculty of Agriculture, Kosovska Mitrovica – Lešak, Kopaonička bb, 38219 Lešak, Kosovo and Metohia, Serbia. 2University Union-Nikola Tesla, Faculty of Management, Njegoševa 1a, 21205 Sremski Karlovci, Serbia. 3Faculty of Information Technology, Metropolitan University, Tadeuša Košćuška 63, 11000 Belgrade, Serbia. 4Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Serbia. 5University of Kragujevac, Faculty of Natural Science, Radoja Domanovića 12, 34000 Kragujevac, Serbia. 6University of Niš, Faculty of Agriculture, Kosančićeva 4,37000 Kruševac, Serbia *Corresponding author: milosavgrcak@gmail.com Received 30 May 2020; Accepted 14 September 2020 A B S T R A C T The total area under cereals during 2018 remained at a long-term stable level of about 1.7 million hectares. Maize and wheat are the most important crops grown in the Republic of Serbia. In the structure of harvested areas under cereals, maize dominates (53%), followed by wheat (38%). The objective of this paper was to determine if there was a recognisable trend line for the production of these crops in the 2007–2018 period. The yield data (Area harvested (ha), Production (tonnes), Production (t/ha)) were collected from the Statistical Office of the Republic of Serbia. Calculations of relevant and valid trends using central tendency measures, dispersion measures, relative ratios and percentage growth were used for statistical data processing. During the observation period, the average annual growth in maize yield was 6.38%, while the average annual growth in wheat yield was slightly lower, 2.00%. However, it is not possible to create an appropriate trend line for any of the variables in order to predict a future time period, since the coefficient of determination is low.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"25 1","pages":"121-127"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193738","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}
U. Wickramasinghe, R. Punchihewa, Shamali Kumari P.M.S., Faiz Marikar M.M.T.
Earthworms are keystone detritivores that can influence primary producers by changing seedbed conditions, soil characteristics, flow of water, nutrients and carbon, and plant-herbivore interactions. Our objective was to understand the impact of weather conditions on the number of species found and the relationship between the biomass and temperature and rainfall conditions in cultivated coconut and cinnamon lands in Sri Lanka. Earthworms were collected from Hakmana, Walasmulla, and Deiyandara districts from Sri Lanka. In this study we found a significant relationship between earthworm biomass and temperature in cinnamon soil, but there was no significant difference related to temperature and rainfall in coconut lands compared with cinnamon lands. The correlation between earthworm biomass and rainfall was weak. Also, we found no relationship between the number of species and temperature and rainfall conditions. The results indicated that the number of species was reduced due to climate change and that cinnamon lands provided good conditions for earthworms.
{"title":"Relationship of earthworm biomass with temperature and rainfall in cultivated coconut and cinnamon lands in Sri Lanka","authors":"U. Wickramasinghe, R. Punchihewa, Shamali Kumari P.M.S., Faiz Marikar M.M.T.","doi":"10.5937/AASER2050129W","DOIUrl":"https://doi.org/10.5937/AASER2050129W","url":null,"abstract":"Earthworms are keystone detritivores that can influence primary producers by changing seedbed conditions, soil characteristics, flow of water, nutrients and carbon, and plant-herbivore interactions. Our objective was to understand the impact of weather conditions on the number of species found and the relationship between the biomass and temperature and rainfall conditions in cultivated coconut and cinnamon lands in Sri Lanka. Earthworms were collected from Hakmana, Walasmulla, and Deiyandara districts from Sri Lanka. In this study we found a significant relationship between earthworm biomass and temperature in cinnamon soil, but there was no significant difference related to temperature and rainfall in coconut lands compared with cinnamon lands. The correlation between earthworm biomass and rainfall was weak. Also, we found no relationship between the number of species and temperature and rainfall conditions. The results indicated that the number of species was reduced due to climate change and that cinnamon lands provided good conditions for earthworms.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193754","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}
E. Miskoska-Milevska, D. Dimovska, Z. Popovski, I. Iljovski
Different types of fertilizers, such as chemical fertilizers, organic fertilizers and natural fertilizers are available on the market. The type of fertilizer has a large impact on plant production quality. The aim of this study, which was conducted under field conditions in the village of Jurumleri near Skopje, North Macedonia, was to investigate the influence of the application of two different types of fertilizers on leaf area and stomatal density in potato. The influence of the microbiological fertilizer Slavol and the organic fertilizer Biohumus was investigated. Also, a control plot without any fertilizer was used. A statistical tool (ANOVA test) was used for data analyses. The results showed that a statistically highly significant difference in average leaf area was found between plants treated with Slavol and plants treated with Biohumus (p<0.001). Also, a statistically highly significant difference was detected in stomatal density between plants treated with Slavol and control plants (p<0.001). A very significant difference was noticed between plants treated with Slavol and plants treated with Biohumus (p<0.01). The microbiological fertilizer Slavol showed better results than Biohumus in our research.
{"title":"Influence of the fertilizers Slavol and Biohumus on potato leaf area and stomatal density","authors":"E. Miskoska-Milevska, D. Dimovska, Z. Popovski, I. Iljovski","doi":"10.5937/aaser2049013m","DOIUrl":"https://doi.org/10.5937/aaser2049013m","url":null,"abstract":"Different types of fertilizers, such as chemical fertilizers, organic fertilizers and natural fertilizers are available on the market. The type of fertilizer has a large impact on plant production quality. The aim of this study, which was conducted under field conditions in the village of Jurumleri near Skopje, North Macedonia, was to investigate the influence of the application of two different types of fertilizers on leaf area and stomatal density in potato. The influence of the microbiological fertilizer Slavol and the organic fertilizer Biohumus was investigated. Also, a control plot without any fertilizer was used. A statistical tool (ANOVA test) was used for data analyses. The results showed that a statistically highly significant difference in average leaf area was found between plants treated with Slavol and plants treated with Biohumus (p<0.001). Also, a statistically highly significant difference was detected in stomatal density between plants treated with Slavol and control plants (p<0.001). A very significant difference was noticed between plants treated with Slavol and plants treated with Biohumus (p<0.01). The microbiological fertilizer Slavol showed better results than Biohumus in our research.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193418","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}
N. Pavlović, M. Zdravković, J. Mladenović, R. Štrbanović, J. Zdravković
In order to popularise organically produced vegetables, two vegetable crops most commonly grown in organic systems in Serbia were studied. This research aimed at investigating differences in phytonutrient content between organically and conventionally produced beet and carrot, in fresh roots, juices pasteurised at different temperatures (70 and 90oC) and dried products. Multivariate analysis (principal component analysis) was used in order to determine the main components accounting for the highest variance, from both systems of production, according to the average content of phytonutrients in beet and carrot. The samples were divided into two clusters, one for carrot and one for beet, each containing two subgroups. The subclusters for beet were: I - BDO, BDC, BJ90C, and BJ90O - dried samples and juices pasteurised at 90oC, from both systems of production; and II - BFC, BFO, BJ70O and BJ70C - fresh beet and pasteurisation at low temperatures. The two sub-clusters for carrot were: I - CDO and CDC - dried samples; and II - pasteurised juices and fresh carrots from both systems of production. In this research, carrot was more stable for processing than beet, as determined for samples from the study area, from both systems of production and for the phytonutrients covered by this research.
{"title":"Analysis of fresh and processed carrots and beets from organic and conventional production for the content of nutrients and antioxidant activity","authors":"N. Pavlović, M. Zdravković, J. Mladenović, R. Štrbanović, J. Zdravković","doi":"10.5937/AASER2050171P","DOIUrl":"https://doi.org/10.5937/AASER2050171P","url":null,"abstract":"In order to popularise organically produced vegetables, two vegetable crops most commonly grown in organic systems in Serbia were studied. This research aimed at investigating differences in phytonutrient content between organically and conventionally produced beet and carrot, in fresh roots, juices pasteurised at different temperatures (70 and 90oC) and dried products. Multivariate analysis (principal component analysis) was used in order to determine the main components accounting for the highest variance, from both systems of production, according to the average content of phytonutrients in beet and carrot. The samples were divided into two clusters, one for carrot and one for beet, each containing two subgroups. The subclusters for beet were: I - BDO, BDC, BJ90C, and BJ90O - dried samples and juices pasteurised at 90oC, from both systems of production; and II - BFC, BFO, BJ70O and BJ70C - fresh beet and pasteurisation at low temperatures. The two sub-clusters for carrot were: I - CDO and CDC - dried samples; and II - pasteurised juices and fresh carrots from both systems of production. In this research, carrot was more stable for processing than beet, as determined for samples from the study area, from both systems of production and for the phytonutrients covered by this research.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"25 1","pages":"171-177"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193650","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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