Effect of nutrient sources, gypsum and growth regulators on growth, yield and quality of Indian mustard [Brassica juncea (L.) Czern. and Cross] under sub-humid region of Uttaranchal

Abstract

A study was taken to assess the effect of integrated nutrient management, soil amendment and
growth regulator on performance of Indian mustard (Brassica juncea). The inorganic sources of
nutrient supplied significantly improved growth and yield parameters, seed yield and quality
parameters of mustard along with the total uptake of N, P and S. The economic returns were
obtained higher when only inorganic sources of nutrients were supplied as compared to other
sources of nutrients supplied like FYM (farm yard manure) and poultry manure. Gypsum use in
mustard crop resulted in significant improvement in growth and yield parameters, stover, seed
and biological yield. The total uptake of N, P and S were reported higher when 50% was applied
as gypsum at sowing and 50% at 35 DAS (days after sowing). Economic returns and benefit: cost
ratio was higher where gypsum applied twice. Application of the growth promoter, thiourea
(1000 ppm) also resulted in enhanced yield attributes, stover and seed yield of mustard.