T. BHAGAVATHA PRIYA*, V. CHANDRIKA, V. SUMATHI, K.V. NAGA MADHURI, C. RAMANA
AND V. UMAMAHESH

Ph.D Scholar, Department of Agronomy, S.V. Agricultural College, Tirupati – 517502

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 viz., conventional tillage (M1), deep ploughimg 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 nutrient management practices viz., control (S1), 50% RDF (S2), 75% RDF (S3), 100% RDF (S4), 125% RDF (S5), respectively. The results revealed that growth characters of groundnut such as plant height, leaf area index and dry matter production were higher with M4 while at their lowest with conventional tillage practice (M1) during both the years of experimentation. However, the yield attributes viz., number of filled pods plant-1, 100-pod and 100-kernel weight, pod yield of groundnut were significantly higher with M3 while at their lowest with conventional tillage practice (M1) during both the years of
experimentation. Among the nutrient management practices tested, the growth parameters recorded were higher with 125% RDF (S5) while at their lowest with control (S1) treatment during both the years of experiment. However, the yield attributes were significantly higher with 100% RDF (S4) which was closely followed by 75% RDF (S3) while at their lowest with control (S1) treatment during both the years.

KEYWORDS:

Groundnut, Nutrient management, Tillage, Vertical tillage, Yield