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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
Not Available
 
Creator S. Mangalassery
D. Kalaivanan
Prabha S. Philip
 
Subject Cashew Microbial biomass carbon Microbial biomass nitrogen Soil carbon Organic farming Soil enzymes Soil aggregation
 
Description Not Available
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.,>2mm (large macroaggregates), 0.25–2mm (small macroaggregates),
0.053 to 0.25mm (microaggregates) and
Not Available
 
Date 2019-03-20T03:43:27Z
2019-03-20T03:43:27Z
2019-03-01
 
Type Research Paper
 
Identifier Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/17515
 
Language English
 
Relation Not Available;
 
Publisher Elsevier