Influence of Green Manure and Potassium Nutrition on Soil Potassium Fractions and Yield of Rice Crop

Sujatha, D.V.; Kavitha, P.; Naidu, M.V.S.

doi:10.20546/ijcmas.2017.611.002

Cited by 8 publications

(7 citation statements)

References 3 publications

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“…Leguminous crops during their growth period showed a key impact on soil K availability in both sites (Table 5). Similarities were found in another study on green manure crops, where K availability was increased, which could be associated with the extensive root systems of leguminous crops [46]. The extensive root system of legumes is beneficial to improve the physical condition of the soil because they have the ability to release organic acids from their roots, which may increase K availability in soil [47].…”

Section: Plant P and K Uptake And Soil Nutrient Availabilitysupporting

confidence: 71%

Improved Accumulation Capabilities of Phosphorus and Potassium in Green Manures and Its Relationship with Soil Properties and Enzymatic Activities

et al. 2019

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Cultivation of green manure crops is important strategy for improving soil fertility in South China. Therefore, it is important to obtain plant varieties that can better accumulate nutrients during the green manuring phase. The present study evaluated the phosphorus (P) and potassium (K) uptake efficiencies of various winter leguminous species at two different sites. Varieties tested included six Chinese milk vetch cultivars (i.e., Minzi No.6, Ningbodaqiao, Wanzi No.1, Xiangzi No.1, Yijiangzi, and Yujiangdaye), as well as hairy vetch and common vetch, while ryegrass was planted as a control. All leguminous species showed higher ability for P and K absorption in the two sites compared to the ryegrass. Hairy vetch and common vetch performed better than all six Chinese milk vetch cultivars, and the highest biomass and P and K uptake capacities were observed in hairy vetch. Green manuring had different effects on soil enzymes. Phosphatase (87.0%) and leucine-aminopeptidase (163.8%) were increased by hairy vetch. β-glucosidase (143.4%) and N-acetyl-glucosaminidase (283.3%) were increased by Yijiangzi and Yujiangdaye, respectively, in Guangxi compared to the control. Xiangzi No.1 increased N-acetyl-glucosaminidase (352.6%), leucine-aminopeptidase (477.5%), phosphatase (591%), and β-glucosidase (786.0%) in Hunan compared to the ryegrass. Enzyme activities increased nutrient availability at both experimental sites. P and K uptake efficiencies significantly related with soil enzymes in Guangxi. It is suggested that hairy vetch has the largest capability for P and K uptake and might be a potential choice for improving P and K management in sustainable agriculture.

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Section: Plant P and K Uptake And Soil Nutrient Availabilitysupporting

confidence: 71%

Improved Accumulation Capabilities of Phosphorus and Potassium in Green Manures and Its Relationship with Soil Properties and Enzymatic Activities

et al. 2019

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“…Along with soil P different species, were also effect on soil K availability (Table 5, 6). Similar results were also recorded in previous studies, where green manure largely contribute to K availability (Sujatha et al 2017). Moreover, when root interacts with microbes could be released organic acids into the rhizosphere soil, and it might be enhance the P and K availability (Bünemann et al 2004;Balota et al 2014).…”

Section: Plants and Soil Nutrient Capacitiessupporting

confidence: 88%

Evaluating The Performance of Nutrients Uptake Capabilities and Enzymatic Activities in The Different Green Manures

Solangi¹,

Gao²,

Cao³

2021

Preprint

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Winter green manure potentially uptake large amount of phosphorus (P) and potassium (K) from the soil. However, the mechanism underlying nutrient uptake in green manure varieties remain elusive. This study illustrates the P and K uptake potential in different leguminous and non-leguminous species through integrated approaches. The designed studies evaluated the 10 green manure crops included five leguminous species (i.e smooth vetch hairy vetch, common vetch, lathyrus sativus, and milk vetch) and five non-leguminous species (i.e February orchid, chinese radish, forage radish, rapeseed and ryegrass) were planted. Experimental results indicated that the smooth vetch had highest P and K uptake capabilities among all leguminous species. While, rapeseed and chinese radish greatly P and K obtain among all non-leguminous treatments. Therefore various species also affected soil P and K availability and soil enzymes. Soil enzymatic activities including phosphatase (150.7%) and N-acetyl-glucosaminidase (95.4%) were elevated in lathryus sativus compared to the hairy vetch and common vetch respectively. The highest β-glucosidase (95.2%) and leucine-aminopeptidase (107.6%) activities accumulated in lathyrus sativus greater than the smooth vetch in all legumes species. In non-leguminous treatments phosphatase (500.5%), β-glucosidase (424.4%), and N-acetylglucosaminidase (256.3%) activities were improved in chinese radish as compared to the rapeseed. In constrast ryegrass was promoted greatest leucine-aminopeptidase activity by 182.7% higher than forage radish. However soil enzymes significanlty improve soil nutrient status. As a conclusion smooth vetch, rapeseed, and Chinese radish varieties have more P and K obtain capacity and forage radish could enhance soil enzyme activities. It is suggested these varieties might be a better choice in green manuring practice for improving nutrient management and soil nutrient quality in agro-ecosystems.

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“…In our experiment, leguminous plants exerted a key impact on available soil K in all studied strategies compared with conventional systems. Similar results were found in a study where the extensive root systems of legumes were proven to help them release organic acids from their roots, which increased available K in soil (Sujatha et al 2017).…”

Section: Physico-biochemical Parameterssupporting

confidence: 85%

Benefits of organic olive rainfed systems to control soil erosion and runoff and improve soil health restoration

Zuazo

Rodríguez

García-Tejero

et al. 2020

Agron. Sustain. Dev.

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The soil erosion rates are high in the rainfed olive (Olea europaea L.) mountain plantations applying conventional practices in a semi-arid Mediterranean environment, which compromise their long-term sustainability. The implementation of sustainable soil management strategies is vital for hillslopes and low-fertility soils where plantations cover vast tracts of land. In Lanjarón (Granada, Spain), the soil erosion and runoff patterns over a 4-year monitoring period were studied in erosion plots on a mountainside under four types of production systems: (1) organic (spontaneous vegetation and leguminous covers), (2) conservation agriculture (combinations of minimum tillage with spontaneous and leguminous strips), (3) integrated (combinations of no-tillage with spontaneous vegetation and leguminous strips), and (4) conventional tillage. The olive yield responses to each production system were evaluated, and the selected physico-chemical soil properties (pH, bulk density, soil organic carbon, cation exchange capacity, and total N, P, and K), soil enzymes (β-glucosidase, protease, dehydrogenase, and phosphatase activities), and soil-microbial biomass C and N were monitored. Throughout the study period, the erosion rates for organic, conservation, integrated, and conventional systems averaged 0.70, 2.10, 1.52, and 3.25 t ha −1 year −1 with runoff of 5.8, 6.3, 11.9, and 17.6 mm year −1 , respectively. The mean olive yield was not significantly affected by the production system applied, being 2.43, 2.10, 2.04, and 2.11 t ha −1 year −1 for integrated, organic, conservation, and conventional, respectively. Here, we show a substantial improvement in soil health restoration using the organic rather than a conventional system. Our findings suggest that sustainable cropping systems on hillslopes integrating a blend between organic and conventional doctrines better maintain or improve soil ecosystem functioning. This study highlights a balanced design for an integrated production system for rainfed olive orchards that can maintain productivity while suitably encouraging environmental quality and ecosystem services.

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Influence of Green Manure and Potassium Nutrition on Soil Potassium Fractions and Yield of Rice Crop

Cited by 8 publications

References 3 publications

Improved Accumulation Capabilities of Phosphorus and Potassium in Green Manures and Its Relationship with Soil Properties and Enzymatic Activities

Improved Accumulation Capabilities of Phosphorus and Potassium in Green Manures and Its Relationship with Soil Properties and Enzymatic Activities

Evaluating The Performance of Nutrients Uptake Capabilities and Enzymatic Activities in The Different Green Manures

Benefits of organic olive rainfed systems to control soil erosion and runoff and improve soil health restoration

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