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Vladimír Šimanský - One of the best experts on this subject based on the ideXlab platform.
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soil structure stability and distribution of carbon in water stable aggregates in different tilled and fertilized haplic luvisol
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2012Co-Authors: Vladimír ŠimanskýAbstract:The influence of tillage and fertilization on soil structure stability and the distribution of carbon in water-stable aggregates of loamy Haplic Luvisol were studied. Soil samples from the locality of Dolna Malanta (experimental station of SUA Nitra) were collected (in 2007-2009) from a depth of 0-0.2 m in two tillage variants: (1. conventional tillage, 2. minimal tillage) and three treatments of fertilization: (1. without fertilization, 2. crop residues and NPK Fertilizers, 3. NPK Fertilizers). The minimal tillage system has a positive effect on both the aggregation processes and sequestration of carbon in size fractions of water-stable aggregates, as well as ploughing of crop residues together with NPK Fertilizers. On the other hand, application of only NPK Fertilizers had a negative effect on SOM content. Under the minimal tillage system and in treatment with crop residues together with NPK Fertilizers, what has been observed is a statistically significant increase in the total organic carbon contents by increasing size fractions of water-stable aggregates. Organic carbon did not influence the aggregation processes with dependence on tillage systems. Under conventional tillage as well as in treatment with ploughing crop residues with NPK Fertilizers, a very important effect on aggregation had bivalent cations Ca2+ and Mg2+.
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soil tillage and fertilization of orthic luvisol and their influence on chemical properties soil structure stability and carbon distribution in water stable macro aggregates
Soil & Tillage Research, 2008Co-Authors: Vladimír Šimanský, Erika Tobiasova, Juraj ChlpikAbstract:Abstract We studied the influence of different soil tillage and fertilization on chemical parameters, soil structure stability and carbon distribution in water-stable macro-aggregates (WSA ma ) of loamy Orthic Luvisol. In 1994, the Department of Plant Production of the Slovak Agricultural University in Nitra established a long-term field experiment in locality Dolna Malanta. In 1994–2007, the soil samples were collected from the depth 0–0.3 m. The field experiment included two types of soil tillage (conventional tillage—CT and reduced tillage—RT) and three variants of fertilization (1. C o —without fertilization, 2. PR + NPK—crop residues together with added NPK Fertilizers, 3. NPK—with added NPK Fertilizers). Different tillage and fertilization had statistically significant influence on changes of the soil pH and soil sorptive complex. The values of pH were more favourable in RT than in CT. In NPK (by 26%) and in PR + NPK (by 21%) decreased values of hydrolytic acidity. On the other hand it increased the sum of basic cations. This led to the increase of cation exchangeable capacity. In comparison to CT, a higher total carbon concentration ( C t ) was determined in RT. According to vulnerability coefficient ( K v ), the soil structure stability was better in RT (4.64 ± 1.54) than in CT (5.15 ± 1.75). Average value of WSA ma was higher by 9% in RT and it led to increasing of the sum of mean weight diameters of water-stable aggregates (MWD-WSA) by 11% and increasing of index stability ( S w ) by 12%. We determined linear dependences between C t and critic level of soil organic matter concentration ( S t ) in CT and RT as well as in PR + NPK and NPK. The negative correlation between Ca 2+ and S t (−0.507 ** ) and positive correlation between Ca 2+ and crusting index (0.525 ** ) were detected in CT. The values of Ca 2+ were in positive correlation with crusting index (0.363 * ) in RT. We observed higher concentrations of C t and labile carbon content ( C L ) in water-stable micro-aggregates (WSA mi ) and WSA ma in the size fractions from 25 × 10 −4 to 3 × 10 −3 m in RT. There were also higher concentrations of C t and C L in WSA ma in the size fractions >3 × 10 −3 m in CT. The application of crop residues together with NPK Fertilizers increased the concentration of C t in all fractions of WSA ma . On the other hand, C t concentration decreased by 7% in WSA mi . In PR + NPK, the highest concentration of C L was observed in WSA ma in the size fraction 2 × 10 −3 to 3 × 10 −3 m.
Juraj Chlpik - One of the best experts on this subject based on the ideXlab platform.
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soil tillage and fertilization of orthic luvisol and their influence on chemical properties soil structure stability and carbon distribution in water stable macro aggregates
Soil & Tillage Research, 2008Co-Authors: Vladimír Šimanský, Erika Tobiasova, Juraj ChlpikAbstract:Abstract We studied the influence of different soil tillage and fertilization on chemical parameters, soil structure stability and carbon distribution in water-stable macro-aggregates (WSA ma ) of loamy Orthic Luvisol. In 1994, the Department of Plant Production of the Slovak Agricultural University in Nitra established a long-term field experiment in locality Dolna Malanta. In 1994–2007, the soil samples were collected from the depth 0–0.3 m. The field experiment included two types of soil tillage (conventional tillage—CT and reduced tillage—RT) and three variants of fertilization (1. C o —without fertilization, 2. PR + NPK—crop residues together with added NPK Fertilizers, 3. NPK—with added NPK Fertilizers). Different tillage and fertilization had statistically significant influence on changes of the soil pH and soil sorptive complex. The values of pH were more favourable in RT than in CT. In NPK (by 26%) and in PR + NPK (by 21%) decreased values of hydrolytic acidity. On the other hand it increased the sum of basic cations. This led to the increase of cation exchangeable capacity. In comparison to CT, a higher total carbon concentration ( C t ) was determined in RT. According to vulnerability coefficient ( K v ), the soil structure stability was better in RT (4.64 ± 1.54) than in CT (5.15 ± 1.75). Average value of WSA ma was higher by 9% in RT and it led to increasing of the sum of mean weight diameters of water-stable aggregates (MWD-WSA) by 11% and increasing of index stability ( S w ) by 12%. We determined linear dependences between C t and critic level of soil organic matter concentration ( S t ) in CT and RT as well as in PR + NPK and NPK. The negative correlation between Ca 2+ and S t (−0.507 ** ) and positive correlation between Ca 2+ and crusting index (0.525 ** ) were detected in CT. The values of Ca 2+ were in positive correlation with crusting index (0.363 * ) in RT. We observed higher concentrations of C t and labile carbon content ( C L ) in water-stable micro-aggregates (WSA mi ) and WSA ma in the size fractions from 25 × 10 −4 to 3 × 10 −3 m in RT. There were also higher concentrations of C t and C L in WSA ma in the size fractions >3 × 10 −3 m in CT. The application of crop residues together with NPK Fertilizers increased the concentration of C t in all fractions of WSA ma . On the other hand, C t concentration decreased by 7% in WSA mi . In PR + NPK, the highest concentration of C L was observed in WSA ma in the size fraction 2 × 10 −3 to 3 × 10 −3 m.
Arshad Javaid - One of the best experts on this subject based on the ideXlab platform.
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effects of bioFertilizers combined with different soil amendments on potted rice plants
Chilean Journal of Agricultural Research, 2011Co-Authors: Arshad JavaidAbstract:This pot study investigated the effect of the combined application of two commercial bioFertilizers viz. Biopower and EM (Effective Microorganisms) on rice (Oryza sativa L.) growth and yield in soils amended with farmyard manure, green manure, and NPK Fertilizers. Biopower is a product of the Nuclear Institute for Biotechnology and Genetic Engineering (NIBGE), Pakistan, which contains species of associative and endophytic diazotrophs. EM (effective microorganisms), a product developed by Japanese scientists, consists of co-existing beneficial microorganisms, mainly species of photosynthetic and lactic acid bacteria, as well as yeast. Applying Biopower adversely affected plant growth and yield in NPK fertilizer amendment. Conversely, this biofertilizer markedly enhanced plant growth and yield in green manure amended soil while its effect was not significant in farmyard manure amendment. In green manure amendment, applying EM enhanced grain yield by 46%. Co-inoculation of Biopower and EM evidently improved root and shoot growth in farmyard manure amended soil. This study concludes that the two bioFertilizers clearly enhanced shoot biomass and grain yield in green manure amended soils.
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growth nodulation and yield of black gram vigna mungo l hepper as influenced by bioFertilizers and soil amendments
African Journal of Biotechnology, 2009Co-Authors: Arshad JavaidAbstract:EM (effective microorganisms) is a commercial biofertilizer mainly consists of photosynthetic and lactic acid bacteria, yeast and actinomycetes. The present study was undertaken to investigate the effect of EM application and two strains of nitrogen fixing Bradyrhizobium japonicum (TAL- 102 and MN-S) on plant growth, nodulation and yield of black gram [Vigna mungo (L.) Hepper] in different soil amendment systems including unamended soil, farmyard manure (FYM) @ 5 g 100 g -1 , Trifolium alexandrinum green manure (GM) @ 4 g 100 g -1 and recommended dose of NPK Fertilizers. Nodule number was significantly enhanced by inoculation of either of the two B. japonicum strains in NPK and un-amended soils. A marked increase in nodule biomass was also recorded due to B. japonicum inoculation in these 2 types of soils. Grain yield was significantly increased by 46% due to either of the two B. japonicum strains in NPK amended soil. EM application markedly enhanced nodule number in FYM amended soil. Conversely, EM application in combination with either of the two B. japonicum strains resulted in pronounced reduction both in number and biomass of nodules in NPK Fertilizers amendment. EM application significantly enhanced grain yield by 48% in NPK amendment without B. japonicum inoculation.
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foliar application of effective microorganisms on pea as an alternative fertilizer
Agronomy for Sustainable Development, 2006Co-Authors: Arshad JavaidAbstract:Effective microorganisms are cultures of coexisting beneficial microorganisms predominantly consisting of species of photosynthetic and lactic acid bacteria, yeast and actinomycetes, that could be used for alternative crop production. I studied the effect of soil and foliar application of these microorganisms on crop growth, yield and nodulation in pea (Pisum sativum L.), in soils amended with Trifolium alexandrinum L. green manure, farmyard manure and NPK Fertilizers. The results show that foliar application of effective microorganisms enhanced nodulation, using NPK amendment, reaching a 217% increase for nodule number and a 167% increase for nodule biomass. Similarly, a grain yield increase of 126% for NPK amendment and of 145% for green manure amendment was found after foliar application of effective microorganisms. These findings show that foliar application of effective microorganisms in combination with proper soil amendment can improve nodulation and yield in pea.
Inayatullah Rajpar - One of the best experts on this subject based on the ideXlab platform.
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co application of milk tea waste and NPK Fertilizers to improve sandy soil biochemical properties and wheat growth
Molecules, 2019Co-Authors: Tanveer Ali Sial, Jiao Liu, Ying Zhao, Muhammad Numan Khan, Zhilong Lan, Jianguo Zhang, Farhana Kumbhar, Kashif Akhtar, Inayatullah RajparAbstract:Desert soil is one of the most severe conditions which negatively affect the environment and crop growth production in arid land. The application of organic amendments with inorganic Fertilizers is an economically viable and environmentally comprehensive method to develop sustainable agriculture. The aim of this study was to assess whether milk tea waste (TW) amendment combined with chemical fertilizer (F) application can be used to improve the biochemical properties of sandy soil and wheat growth. The treatments included control without amendment (T1), chemical Fertilizers (T2), TW 2.5% + F (T3), TW 5% + F (T4) and TW 10% + F (T5). The results showed that the highest chlorophyll (a and b) and carotenoids, shoot and root dry biomass, and leaf area index (LAI) were significantly (p < 0.05) improved with all amendment treatments. However, the highest root total length, root surface area, root volume and diameter were recorded for T4 among all treatments. The greater uptake of N, P, and K contents for T4 increased for the shoot by 68.9, 58.3, and 57.1%, and for the root by 65.7, 34.3, and 47.4% compared to the control, respectively. Compared with the control, T5 treatment decreased the soil pH significantly (p < 0.05) and increased soil enzyme activities such as urease (95.2%), β-glucosidase (81.6%) and dehydrogenase (97.2%), followed by T4, T3, and T2. Our findings suggested that the integrated use of milk tea waste and chemical Fertilizers is a suitable amendment method for improving the growth and soil fertility status of sandy soils.
Ying Zhao - One of the best experts on this subject based on the ideXlab platform.
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co application of milk tea waste and NPK Fertilizers to improve sandy soil biochemical properties and wheat growth
Molecules, 2019Co-Authors: Tanveer Ali Sial, Jiao Liu, Ying Zhao, Muhammad Numan Khan, Zhilong Lan, Jianguo Zhang, Farhana Kumbhar, Kashif Akhtar, Inayatullah RajparAbstract:Desert soil is one of the most severe conditions which negatively affect the environment and crop growth production in arid land. The application of organic amendments with inorganic Fertilizers is an economically viable and environmentally comprehensive method to develop sustainable agriculture. The aim of this study was to assess whether milk tea waste (TW) amendment combined with chemical fertilizer (F) application can be used to improve the biochemical properties of sandy soil and wheat growth. The treatments included control without amendment (T1), chemical Fertilizers (T2), TW 2.5% + F (T3), TW 5% + F (T4) and TW 10% + F (T5). The results showed that the highest chlorophyll (a and b) and carotenoids, shoot and root dry biomass, and leaf area index (LAI) were significantly (p < 0.05) improved with all amendment treatments. However, the highest root total length, root surface area, root volume and diameter were recorded for T4 among all treatments. The greater uptake of N, P, and K contents for T4 increased for the shoot by 68.9, 58.3, and 57.1%, and for the root by 65.7, 34.3, and 47.4% compared to the control, respectively. Compared with the control, T5 treatment decreased the soil pH significantly (p < 0.05) and increased soil enzyme activities such as urease (95.2%), β-glucosidase (81.6%) and dehydrogenase (97.2%), followed by T4, T3, and T2. Our findings suggested that the integrated use of milk tea waste and chemical Fertilizers is a suitable amendment method for improving the growth and soil fertility status of sandy soils.
