Effect of Tillage and Nutrient Management Practices on Physico-chemical and Biological properties of Sandy Clay Loam Soils of Southern Agro-climatic Zone of Andhra Pradesh

Author: T. Bhagavatha Priya*, V. Chandrika, C. Ramana and K.V. Naga Madhuri

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Abstract

A field experiment was conducted in sandy clay loam soils of Dryland farm at S.V. Agricultural College, Tirupati campus of Acharya N.G. Ranga Agricultural University, Andhra Pradesh in split-plot design with three replications to study the performance of groundnut under different tillage and nutrient management practices viz., conventional tillage (M1), deep ploughing with disc plough upto a depth of 30 cm (M2), vertical tillage with subsoiler upto a depth of 40 cm at 1 m interval (M3), vertical tillage with subsoiler upto a depth of 60 cm at 1 m interval (M4) and control (S1), 50 % RDF (S2), 75 % RDF (S3), 100 % RDF (S4), 125 % RDF (S5), respectively. The results revealed that minimum bulk density, maximum aggregate stability and soil water content, higher count of total microbial mass in soil, groundnut pod yield, nutrient uptake as well as post harvest nutrient availability in soil after groundnut was obtained with vertical tillage with subsoiler upto 60 cm depth at 1 m interval (M4

Keywords

Groundnut, Nutrient management, Tillage, Vertical tillage, Yield.

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