2009•T'u Jang T'ung PaoRequires access
Effect of Optimized Application of Potassium Fertilizer on Summer Corn Yield and Nutrient Balance
Haitao Lin
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Abstract
The purpose of this experiment is to determine fitting potassium fertilizer rate and appropriate proportion of N P K in given area by setting six treatments with different fertilizer rate on corn filed. The results show that HK2 treatment with N (240kg hm2) and P2O5 (120kg hm2) and K2O (120kg hm2) is the most appropriate fertilizer rate,which not only can promote uptake of nutrient and increase crop yield,but also can acquire the most economic benefit and retain soil fertility to some extent.