Optimization of production potential of single cut forage sorghum under resources constraints

Abstract

A field experiment was carried out during Kharif season of 2016 at Sorghum research station,    S. D. Agricultural University, Deesa (24.5° N, 72° E and 134 M above mean sea level) under rainfed condition to evaluate the effect of resource constraints on productivity of single cut forage sorghum. Eight treatments combinations of resource constraints viz; (1) control (only improved hybrid without any input) (2) full package of practices (FPP i.e. RDF 80: 40: 0 NPK kg/ha+ Weed control (herbicide and weeding)+ Plant protection (application of insecticide and fungicides including seed treatment with fungicides) + Seed treatment with PSB and Azospirillum +Thinning+ Improved hybrid) (3) FPP without fertilizer (4) FPP without weed control (5) FPP without plant protection (6) FPP without seed treatment with PSB and Azosporillium (7) FPP without thinning and (8) FPP without improved hybrids (Local Varieties) were evaluated in randomized block design with three replications. Growing of improved hybrids or local variety with full package of practices recorded maximum fodder yield and net realizations. Fertilizer, seed treatment with PSB and azospirrilum, and plant protection were identified as most important input resources for the production of single cut forage sorghum crop.