Productivity and profitability of rice hybrids at different nutrient management levels under semi-arid conditions of North Eastern Plains Zone

Abstract

The research work was undertaken at Student's Instructional Farm, Chandra Sekhar Azad University

of Agriculture and Technology, Kanpur, India, with the objective of identifying most suitable rice

hybrid in terms of yield and economics, and work out the optimum nutrient management level for

different rice hybrids. The experiment comprised 12 treatment combinations of 3 nutrient

management levels viz. Farmer's dose (80:30:30 N, P2

(RDF) (150:75:60:25 N, P2

O, ZnSO4

kg/ha) and 4 rice hybrids namely, PHB 71, Pro-agro 6444, PAC 832 and Shri Ram

K2

Sonali. The experiment was conducted under split plot design with four replications. Hybrid PHB

71 produced significantly higher number of effective tillers, panicle length and grains per panicle as

compared to Pro-agro 6444, PAC 832 and Shri Ram Sonali. The number of effective tillers, panicle

length and grains per panicle increased significantly with increasing levels of nutrient management

and maximised at 125% of RDF. Hybrid PHB 71 produced 6.5 t/ha grain yield which was computed

to 8.4, 13.8 and 29.1% higher than the grain yield obtained from PAC 832, Pro-agro 6444 and Shri

Ram Sonali, respectively. At 125 % of RDF the highest of 6.7 t/ha grain yield of rice was produced

and recorded by 9.5 and 49.4% higher than the RDF and farmers dose, respectively. Gross return,

net return and benefit: cost ratio were computed maximum in PHB 71 followed by PAC 832, Pro-
agro 6444 and Shri Ram Sonali. At the same time gross return, net return and benefit: cost ratio were

also obtained maximum at 125% of RDF as compared to RDF and farmers dose.

, K2

O, ZnSO4

O5

, K2

O5

kg/ha) and 125% of RDF (187.5:93.75:75:31.25 N, P2

O kg/ha), Recommended dose of fertilisers