Effect of nitrogen and phosphorus on seed yield of coriander (Coriandrum sativum L.)

A field experiment was conducted during Rabi season of 2017-2018 to study the effect of nitrogen and phosphorus on seed yield of coriander (Coriandrum sativum L.). The experiment comprising of 16 treatment combinations with four levels of nitrogen viz., 0, 20, 40 and 60 kg N ha -1 and four levels of phosphorus viz., 0, 20, 40 and 60 kg P 2 O 5 ha -1 was laid out in RBD design with three replications. The experiment results revealed that the combination of 60 kg N ha -1 ; 20 kg P 2 O 5 /ha promoted yield attributes viz., number of umbels per plant (14.27), the combination of 60 kg N ha -1 ; 60 kg P 2 O 5 /ha promoted number of seeds per umbellate (5.96), the combination of 60 kg N ha -1 ;40 kg P 2 O 5 /ha promoted seed weight per plant (4.82 g), the combination of 40 kg N ha -1 ;40 kg P 2 O 5 /ha promoted number of umbellate per umbel (5) and ultimately higher seed yield (1469 kg ha -1 ) was given by combination of 60 kg N ha -1 ;40 kg P 2 O 5 / ha .