Nutrients Release in Soils Amended with Different Organic Sources and Industrial by–products: A Laboratory Incubation Study
V. Arulkumar *
Department of Soils and Environment, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai-625104, India.
S. R. Shri Rangasami
Rice Research Station, Tamil Nadu Agricultural University, Ambasamudram-627401, India.
R. Murugaragavan
Department of Soils and Environment, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai-625104, India.
D. Venkatakrishnan
Department of Soil Science and Agricultural Chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar– 608002, India.
*Author to whom correspondence should be addressed.
Abstract
The incubation experiment was carried out to evaluate the best organic sources Such as farm yard manure (FYM), municipal solid waste compost and industrial by – products such as bagasse ash, rice husk and inorganic fertilizers on nutrient release pattern in sandy loam soils of Cuddalore District, Tamil Nadu, India. The outcomes showed that pH of the soil was reduced by incubation with organic sources. The application of 100% recommended dose of fertilizer (RDF) + FYM@ 25t ha-1(T5) outperformed other treatments among organic sources by recording the lowest pH of 7.0 at 90 Days (DAI). The EC of the soil was reduced by the FYM application. Similarly the nitrogen, phosphorus and potassium content of the incubation mixture were significantly increased over the control.
Keywords: Municipal solid waste, farmyard manure, bagasse ash, rice husk ash