Abstract

Field studies executed over a period of three years (1980-1981 to 1982-1983) to determine the effects of stand geometry and fertility regimes on the production potential of newly developed upland cottons in Nimar tract of Madha Pradesh revealed that variety 76 IH 20, performed relatively well at the highest plant density (56000 plants ha'') and interacted efficiently at the maximum fertility rates (80 kg.ha'N); producing highest seed cotton yield of 1246 kg.ha¹ in 1981-1982 and 1130 kg.ha in 1982-1983 besides bearing significantly greater number of bolls, synchronized bursting and escaping boll worm damage due to inherent biotic character of early maturity. Local standard Khandwa 2 remained in close proximity with 76 IH 20 but another new genotype KH 33/ 1146 failed to touch the desired yield levels.

Keywords: Cotton, Plant stand, Plant density, Plant geometry, Nitrogen ever.