The Experts below are selected from a list of 18120 Experts worldwide ranked by ideXlab platform
Wanderley Jose De Melo - One of the best experts on this subject based on the ideXlab platform.
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soil microbial biomass and Organic matter fractions during transition from conventional to Organic Farming Systems
Geoderma, 2012Co-Authors: Valdinar Bezerra Dos Santos, Ademir Sergio Ferreira De Araujo, Luiz Fernando Carvalho Leite, Luis Alfredo Pinheiro Leal Nunes, Wanderley Jose De MeloAbstract:article i nfo The aim of this study was to investigate the response of soil microbial biomass and Organic matter fractions during the transition from conventional to Organic Farming in a tropical soil. Soil samples were collected from three different plots planted with Malpighia glaba: conventional plot with 10 years (CON); transitional plot with 2 years under Organic Farming System (TRA); Organic plot with 5 years under Organic Farming System (ORG). A plot under native vegetation (NV) was used as a reference. Soil microbial biomass C (MBC) and N (MBN), soil Organic carbon (SOC) and total N (TN), soil Organic matter fractioning and microbial indices were evaluated in soil samples collected at 0-5, 5-10, 10-20 and 20-40 cm depth. SOC and fulvic acids frac- tion contents were higher in the ORG System at 0-5 cm and 5-10 cm depths. Soil MBC was highest in the ORG, in all depths, than in others plots. Soil MBN was similar between ORG, TRA and NV in the surface layer. The lowest values for soil MBC and MBN were observed in CON plot. Soil microbial biomass increased gradually from conventional to Organic Farming, leading to consistent and distinct differences from the con- ventional control by the end of the second year.
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soil microbial biomass in Organic Farming System
Ciencia Rural, 2010Co-Authors: Ademir Sergio Ferreira De Araujo, Wanderley Jose De MeloAbstract:Agricultural production Systems have to combine management practices in order to sustain soil's profitability and quality. Organic Farming is gaining worldwide acceptance and has been expanding at an annual rate of 20% in the last decade, accounting for over 24 million hectares worldwide. Organic practices avoid applications of synthetic fertilizers and pesticides, rely on Organic inputs and recycling for nutrient supply, and emphasize cropping System design and biological processes for pest management, as defined by Organic Farming regulation in the world. In comparison with conventional Farming, Organic Farming has potential benefits in improving food quality and safety. Plant production in Organic Farming mainly depends on nutrient release as a function of mineralization processes in soils. The build-up of a large and active soil microbial biomass is important pool of accessible nutrients, therefore, is an important priority in Organic Farming. In Organic Farming, there is positive effect of quantity and quality of inputs of Organic residues on soil microbial biomass. In this way, the Organic Systems are extremely important for the increase of the soil fertility and the maintenance of the environmental sustainability.
Ademir Sergio Ferreira De Araujo - One of the best experts on this subject based on the ideXlab platform.
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soil microbial biomass and Organic matter fractions during transition from conventional to Organic Farming Systems
Geoderma, 2012Co-Authors: Valdinar Bezerra Dos Santos, Ademir Sergio Ferreira De Araujo, Luiz Fernando Carvalho Leite, Luis Alfredo Pinheiro Leal Nunes, Wanderley Jose De MeloAbstract:article i nfo The aim of this study was to investigate the response of soil microbial biomass and Organic matter fractions during the transition from conventional to Organic Farming in a tropical soil. Soil samples were collected from three different plots planted with Malpighia glaba: conventional plot with 10 years (CON); transitional plot with 2 years under Organic Farming System (TRA); Organic plot with 5 years under Organic Farming System (ORG). A plot under native vegetation (NV) was used as a reference. Soil microbial biomass C (MBC) and N (MBN), soil Organic carbon (SOC) and total N (TN), soil Organic matter fractioning and microbial indices were evaluated in soil samples collected at 0-5, 5-10, 10-20 and 20-40 cm depth. SOC and fulvic acids frac- tion contents were higher in the ORG System at 0-5 cm and 5-10 cm depths. Soil MBC was highest in the ORG, in all depths, than in others plots. Soil MBN was similar between ORG, TRA and NV in the surface layer. The lowest values for soil MBC and MBN were observed in CON plot. Soil microbial biomass increased gradually from conventional to Organic Farming, leading to consistent and distinct differences from the con- ventional control by the end of the second year.
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soil microbial biomass in Organic Farming System
Ciencia Rural, 2010Co-Authors: Ademir Sergio Ferreira De Araujo, Wanderley Jose De MeloAbstract:Agricultural production Systems have to combine management practices in order to sustain soil's profitability and quality. Organic Farming is gaining worldwide acceptance and has been expanding at an annual rate of 20% in the last decade, accounting for over 24 million hectares worldwide. Organic practices avoid applications of synthetic fertilizers and pesticides, rely on Organic inputs and recycling for nutrient supply, and emphasize cropping System design and biological processes for pest management, as defined by Organic Farming regulation in the world. In comparison with conventional Farming, Organic Farming has potential benefits in improving food quality and safety. Plant production in Organic Farming mainly depends on nutrient release as a function of mineralization processes in soils. The build-up of a large and active soil microbial biomass is important pool of accessible nutrients, therefore, is an important priority in Organic Farming. In Organic Farming, there is positive effect of quantity and quality of inputs of Organic residues on soil microbial biomass. In this way, the Organic Systems are extremely important for the increase of the soil fertility and the maintenance of the environmental sustainability.
Józef Tyburski - One of the best experts on this subject based on the ideXlab platform.
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Correction to: Effect of Different Forms of Silicon on Growth of Spring Wheat Cultivated in Organic Farming System
Silicon, 2020Co-Authors: Jolanta Kowalska, Józef Tyburski, Magdalena Jakubowska, Joanna KrzymińskaAbstract:The original version of this article has been published with an error.
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Effect of Different Forms of Silicon on Growth of Spring Wheat Cultivated in Organic Farming System
Silicon, 2020Co-Authors: Jolanta Kowalska, Józef Tyburski, Magdalena Jakubowska, Joanna KrzymińskaAbstract:Application of silicon (Si) could greatly boost wheat growth and yield by mitigating abiotic stress, especially drought. Aim The objective of this study was to determine the effect of silicon products in different forms and methods of its application on growth and yield of spring wheat cultivated under Organic Farming regime. Methods A field experiment was conducted in the period of 2017–2018 on a research farm. The impact of different methods of application of powder and liquid forms of Si products to soil, leaves and combined methods of application (to soil and leaves) on growth parameters and yielding of spring wheat was evaluated. The treatments consisted of the recommended doses of two Si products - Adesil and ZumSil at 10 kg and 0.3 l/ha, respectively. The effect of silicon was assessed by measuring emergence and height of plants, number and weight of ears, as well as the SPAD index and yield. Results The number of plants emergence (316–321 seedlings per 1 m^2), the number of spikes and the height of plants were the highest after application of the liquid form of silicon, regardless of the method of application. The yield was statistically higher after the combined and foliar applications of liquid form of silicon (4.97 and 4.84 t/ha, respectively). The powder silicon form was similar effective when was used as the combined application (to soil and leaves) (5.35 t/ ha). Conclusions Si stimulates growth of wheat enhancing number of ears and plant height, increases yields of Organically grown spring wheat, a liquid Si formulation (solution of monosilicic acid) is more effective than a powder Si formulation (diatomaceous earth). Soil and foliar Si application is more effective than soil or foliar application.
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effect of different forms of silicon on growth of spring wheat cultivated in Organic Farming System
Silicon, 2020Co-Authors: Jolanta Kowalska, Józef Tyburski, Magdalena Jakubowska, Joanna KrzyminskaAbstract:Application of silicon (Si) could greatly boost wheat growth and yield by mitigating abiotic stress, especially drought. The objective of this study was to determine the effect of silicon products in different forms and methods of its application on growth and yield of spring wheat cultivated under Organic Farming regime. A field experiment was conducted in the period of 2017–2018 on a research farm. The impact of different methods of application of powder and liquid forms of Si products to soil, leaves and combined methods of application (to soil and leaves) on growth parameters and yielding of spring wheat was evaluated. The treatments consisted of the recommended doses of two Si products - Adesil and ZumSil at 10 kg and 0.3 l/ha, respectively. The effect of silicon was assessed by measuring emergence and height of plants, number and weight of ears, as well as the SPAD index and yield. The number of plants emergence (316–321 seedlings per 1 m2), the number of spikes and the height of plants were the highest after application of the liquid form of silicon, regardless of the method of application. The yield was statistically higher after the combined and foliar applications of liquid form of silicon (4.97 and 4.84 t/ha, respectively). The powder silicon form was similar effective when was used as the combined application (to soil and leaves) (5.35 t/ ha). Si stimulates growth of wheat enhancing number of ears and plant height, increases yields of Organically grown spring wheat, a liquid Si formulation (solution of monosilicic acid) is more effective than a powder Si formulation (diatomaceous earth). Soil and foliar Si application is more effective than soil or foliar application.
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A COMPARISON OF MILLING VALUE OF SPELT WHEAT AND COMMON WHEAT GRAIN GROWN IN Organic Farming System
Polish Journal of Natural Science, 2013Co-Authors: M. Warechowska, J. Warechowski, Józef TyburskiAbstract:The objective of the studies was to compare the milling properties of spelt wheat and winter and spring common wheat kernels. The studies were carried out with winter spelt wheat cv. Schwabenkorn and Franckenkorn and with common wheat: winter variety cv. Korweta and spring variety cv. Bombona. Spelt wheat and common wheat were grown in Organic Farming Systems. The evaluation of kernel milling value was performed based on the physical and chemical kernel characteristics and with a trial laboratory milling. Thousand kernel weight, test weight, vitreousness, hardness and content of total ash in the kernels and flour were determined. The milling efficiency factor K, ash number and specific energy for kernel comminution (Er) were calculated. The granulometric composition of middlings (milling product) was also determined with laser diffraction. It was shown that spelt wheat kernels had lower milling parameters than common wheat grain. Out of the tested grain samples, spelt wheat – in comparison with common wheat – had a more floury structure of the endosperm and significantly higher ash content in kernels. Less flour was obtained from spelt wheat than from common wheat. The highest volume of flour was produced from spring wheat cv. Bombona. Specific energy input for milling of spelt wheat kernels was significantly lower in comparison with common wheat. The milling of common wheat cv. Bombona consumed the highest amount of energy; it resulted from higher hardness of kernels. The average particle size of the products obtained by common wheat milling was positively correlated with vitreousness of grain.
Valdinar Bezerra Dos Santos - One of the best experts on this subject based on the ideXlab platform.
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soil microbial biomass and Organic matter fractions during transition from conventional to Organic Farming Systems
Geoderma, 2012Co-Authors: Valdinar Bezerra Dos Santos, Ademir Sergio Ferreira De Araujo, Luiz Fernando Carvalho Leite, Luis Alfredo Pinheiro Leal Nunes, Wanderley Jose De MeloAbstract:article i nfo The aim of this study was to investigate the response of soil microbial biomass and Organic matter fractions during the transition from conventional to Organic Farming in a tropical soil. Soil samples were collected from three different plots planted with Malpighia glaba: conventional plot with 10 years (CON); transitional plot with 2 years under Organic Farming System (TRA); Organic plot with 5 years under Organic Farming System (ORG). A plot under native vegetation (NV) was used as a reference. Soil microbial biomass C (MBC) and N (MBN), soil Organic carbon (SOC) and total N (TN), soil Organic matter fractioning and microbial indices were evaluated in soil samples collected at 0-5, 5-10, 10-20 and 20-40 cm depth. SOC and fulvic acids frac- tion contents were higher in the ORG System at 0-5 cm and 5-10 cm depths. Soil MBC was highest in the ORG, in all depths, than in others plots. Soil MBN was similar between ORG, TRA and NV in the surface layer. The lowest values for soil MBC and MBN were observed in CON plot. Soil microbial biomass increased gradually from conventional to Organic Farming, leading to consistent and distinct differences from the con- ventional control by the end of the second year.
Younghan Lee - One of the best experts on this subject based on the ideXlab platform.
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impacts of Organic Farming System on the soil microbial population in upland soil
Korean Journal of Soil Science and Fertilizer, 2011Co-Authors: Younghan Lee, Yeon Kyu Sonn, Byungkoo Ahn, Seongtae Lee, Mina Shin, Eunseok Kim, Wondoo Song, Younsig KwakAbstract:The present study evaluated the seasonal changes of the soil microbial population by selected media in an Organic Farming System (OFS) with rye rotation cropping management compared to those in a conventional Farming System (CFS) with chemical fertilizers, pesticide and herbicide from May 2009 to October 2010 in an upland field. With the exception of fungi, populations of aerobic bacteria, Gram-negative bacteria, and Bacillus spp. were higher in the OFS soil during soybean-growing stages. In addition, populations of aerobic bacteria, Gram-negative bacteria, and Bacillus spp. in the OFS soil were nearly two times more than those in the CFS soil on reproductive growth stages. Our findings suggested that Bacillus spp. should be considered as responsible factor for microbial population differentiation observed between the OFS and the CFS in upland fields.
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impacts of Organic Farming System on the soil microbial ecology in no till paddy
Korean Journal of Soil Science and Fertilizer, 2011Co-Authors: Younghan Lee, Byungkoo Ahn, Younsig AhnAbstract:The seasonal changes were evaluated in the soil microbial populations by selected media in an Organic Farming System (OFS) with no-till management compared to those in a conventional Farming System (CFS) with tillage and synthetic amendments in a flooded paddy from 2009 to 2010. The populations of aerobic bacteria and fungi in the OFS were significantly higher than those in the CFS at the harvesting stages, whereas those of Gram-negative bacteria was significantly higher in the OFS than in the CFS before the submerging stages. In addition, populations of aerobic bacteria, Gram-negative bacteria, and fungi tended to rapidly decreased after the submerging stages may be due to insufficient oxygen. Gram-negative bacteria should be considered as potential factor responsible for the microbial population differentiation observed between the OFS and the CFS in flooded paddy fields.
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Changes in Microbial Community of Agricultural Soils Subjected to Organic Farming System in Korean Paddy Fields with No-till Management
Journal of the Korean Society for Applied Biological Chemistry, 2011Co-Authors: Younghan Lee, Han Dae YunAbstract:Soil management for Organic Farming depends on the effects of soil microbial activities and aggregation. The seasonal changes were evaluated in the soil microbial community by fatty acid methyl ester (FAME) and total glomalin analysis in an Organic Farming System (OFS) with no-till management compared to those in a conventional Farming System (CFS) with tillage and chemical amendments in a flooded paddy. The average concentrations of individual FAMEs and glomalin in the OFS were significantly higher than those in the CFS during rice-growing stages (p
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changes in microbial community of agricultural soils subjected to Organic Farming System in korean paddy fields with no till management
Journal of The Korean Society for Applied Biological Chemistry, 2011Co-Authors: Younghan Lee, Han Dae YunAbstract:Soil management for Organic Farming depends on the effects of soil microbial activities and aggregation. The seasonal changes were evaluated in the soil microbial community by fatty acid methyl ester (FAME) and total glomalin analysis in an Organic Farming System (OFS) with no-till management compared to those in a conventional Farming System (CFS) with tillage and chemical amendments in a flooded paddy. The average concentrations of individual FAMEs and glomalin in the OFS were significantly higher than those in the CFS during rice-growing stages (p<0.001). OFS had significantly lower ratio of cy17:0/16:1ω7c and higher ratio of monounsaturated fatty acids to saturated fatty acids compared with those of CFS (p<0.001), indicating that microbial stress decreased due to Organic soil inputs and the lack of chemical amendments, whereas communities of Gram-negative bacteria in OFS soils were significantly larger than those in CFS soils (p<0.001). Gram-negative bacteria should be considered as potential factor responsible for the clear microbial community differentiation observed between the OFS and the CFS in flooded paddy fields.