Response of Cotton Varieties to Phosphorus Fertilizer on Growth, Yield and Economic Efficiency in northeast of Afghanistan

Abstract

A field experiment was conducted at the research farm of Kunduz Spinzar State-Owned Corporation in Collaboration with Kunduz University to evaluate response of cotton varieties to phosphorus fertilizer on growth, yield and economic efficiency in northeast of Afghanistan, the experimental design was Randomized Complete Block Design (RCBD) With split arrangement each replicated thrice, The study involved three cotton varieties (CD-401, AND-123 and K-01) and four phosphorus fertilizer levels (control, 30 kg p2o5/ha, 60 kg p2o5/ha and 90 kg p2o5/ha), different cotton varieties and phosphorus have significant impact on yield and economic parameters, the maximum Lint Cotton yield (1,749.02 kg/ha), Seed Cotton yield (3,666.07 kg/ha), Lint Cotton Yield (187,390AFN/ha), Seed Cotton yield (167,539 AFN/ha), gross return (354,929 AFN/ha), net return (339,876 AFN/ha) and B: Cost ratio (7.67) was in AND-123 variety compared with CD-401 and K-01 varieties respectively. The highest Lint Cotton yield (1,627.50 kg/ha), Seed Cotton yield (3,110.38 kg/ha), Lint Cotton Yield (174,370AFN/ha), Seed Cotton yield (142,144 AFN/ha), gross return (316,515 AFN/ha), net return (297,790 AFN/ha) and B: Cost ratio (7.67) was in 90 kg P2O5 kg ha-1 followed by phosphorus application of 60 kg P2O5 kg ha-1, 30 kg P2O5 kg ha-1 and control respectively. It can be concluded AND-123 cotton variety along with 90 kg p2o5/ha is the best combination for cotton productivity and profitability in northeast of Afghanistan.