M. GIRIDHAR*, P. MAHESWARA REDDY, C. NAGAMANI, M. MADHAN MOHAN AND V. CHANDRIKA

Department of Agronomy, S.V. Agricultural College, ANGRAU, Tirupati-517 502.

ABSTRACT

A field experiment was conducted during rabi, 2023-24 at S.V. Agricultural College Farm, Tirupati. The experiment was laid out in split-plot design and replicated thrice. The treatments consisted of seed rates viz., line sowing (S1), broadcasting with recommended seed rate (S2) and broadcasting with 1.5 times higher seed rate (S3) assigned to main plots and five weed management practices viz., PE application of pendimethalin + imazethapyr 320 g ha-1 (W1), PE application of pyroxasulfone 100 g ha- 1 (W2), PE application of pretilachlor 250 g ha-1 (W3), hand weeding twice at 20 and 40 DAS (W4) and unweeded check (W5) allotted to sub-plots. Among the methods of sowing, highest uptake of N, P and K by sesame was with broadcasting with 1.5 times higher seed rate. Hand weeding twice recorded significantly higher N, P and K uptake by sesame crop compared to other four weed management practices. Lower nutrient uptake of N, P and K by crop was with unweeded check.

KEYWORDS: Sesame, Seed rates, Pre-emergence herbicides, Nutrient uptake.