2007•Unpublished venueRequires access
Effect of fertilization on cotton yield and quality
Yang Peilin
Open publisher page 1 citations
Abstract
Limiting factors of primary nutrient in the cotton soil and the optimal fertilization quantity on land cotton were studied.The results showed that the first nutrient limiting factor in experiment soil was nitrogen,phosphor and potassium were following.The order of nutrients limiting factors which affected the cotton yield was NPK.OPT treatment which nitrogen,phosphor and potassium fertilization optimum quantity were respectively 207,138,75 kg/hm2 could increase the cotton yield significantly.Comparing with OPT treatment,cotton reducing yield on CK(no used fertilizer) treatment was 33%.According to equations of N,P,K fertilizer,the most economic N,P2O5,K2O fertilizer quantity were 203.3,141.7,46 kg/hm2 respectively.N∶P2O5∶K2O was 1 ∶ 0.70 ∶ 0.23.The most economic yields of cotton were 1474,1550,1516 kg/hm2 respectively.