Effect of inorganic fertilisers and organic amendments on soil aggregation and biochemical characteristics in a weathered tropical soil.
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Title |
Effect of inorganic fertilisers and organic amendments on soil aggregation and biochemical characteristics in a weathered tropical soil.
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Creator |
Mangalassery, S., Kalaivanan, D., and Prabha, S. Philip
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Subject |
Cashew, Microbial biomass carbon, Microbial biomass nitrogen, Soil carbon, Organic farming, Soil enzymes, Soil aggregation
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Description |
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Highly weathered laterite soils are a characteristic feature of humid tropics with undulating topography and high rainfall. The crop of cashew (Anacardium occidentale L.) has been cultivated in such landscapes, mainly to prevent further degradation due to the drought hardiness of cashew and requirement of very limited soil disturbances for its cultivation. Providing proper nutrient management is important for balancing the nutrient removal by tree crops especially in poor fertile soils. A study was initiated, after 5 years of application of inorganic fertilisers and organic amendments to cashew in a weathered tropical soil, to evaluate the effects of organic and inorganic sources of nutrients on soil aggregation and biochemical characteristics. The experiment consisted of 11 treatments as Farm Yard Manure (FYM) alone; FYM + biofertiliser consortia; FYM, rock phosphate and wood ash; poultry manure; In situ composting using recyclable cashew biomass and weeds; In situ composting using recyclable cashew biomass and weeds + green manuring; vermicomposting of recyclable cashew biomass; FYM + organic cakes + recyclable cashew biomass + biofertiliser consortia; recommended dose of nitrogen, phosphorus and potassium fertiliser (NPK fertiliser); recommended NPK fertiliser + FYM; and control without nutrient application. Soil samples were collected from surface 0–30 cm layer. The soil samples were fractionated into three aggregate sizes, i.e., >2 mm (large macroaggregates), 0.25–2 mm (small macroaggregates), 0.053 to 0.25 mm (microaggregates) and Not Available |
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Date |
2020-05-16T07:32:49Z
2020-05-16T07:32:49Z 2019-04-01 |
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Type |
Research Paper
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Identifier |
Mangalassery, S., Kalaivanan, D., and Prabha, S. Philip 2019. Effect of inorganic fertilisers and organic amendments on soil aggregation and biochemical characteristics in a weathered tropical soil. Soil and Tillage Research 187:144-151. https://doi.org/10.1016/j.still.2018.12.008
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/35721 |
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Language |
English
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Relation |
Not Available;
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Publisher |
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