M. SAIKUMAR*, C. NAGAMANI, V. SUMATHI, P. LAVANYA KUMARI AND V. CHANDRIKA

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

ABSTRACT

A field experiment was conducted at wetland farm, S. V. Agricultural College, Tirupati, Acharya N.G. Ranga Agricultural University, Andhra Pradesh, India during rabi season of 2023-24 to study the seed yield, post harvest soil available nutrient status and nutrient uptake of ultra short duration redgram varieties under different plant geometries. The field experiment was laid out in a split pot design with three replications. The treatments consists of four varieties viz., ICPV 21333, ICPV 21444, ICPV 21777 and ICPV 21888 as main plots and three plant geometries viz., 30 cm × 10 cm, 45 cm × 10 cm and 60 cm × 10 cm as sub plots. ICPV 21333 recorded significantly higher seed yield and nutrient uptake where as, ICPV 21444 registered higher post harvest soil available nutrient status among the varieties tested. Plant geometry of 60 cm × 10 cm resulted in higher post harvest soil available nutrient status and 45 cm × 10 cm resulted in higher seed yield where as, plant geometry of 30 cm × 10 cm recorded higher nutrient uptake.

KEYWORDS: Nutrient uptake, Plant geometries, Redgram, seed yield and Ultra short duration varieties.