2014•Guizhou nongye kexueRequires access
Effect of Optimized Fertilization on Yield of Summer Maize and Fertilizer Efficiency in Yellow Soil on Sloping Land
Zhang Bangx
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Abstract
In order to provide a reference for rational fertilization of maize on yellow soil in sloping land,effects of different fertilization mode on yield of summer maize and fertilizer efficiency in yellow soil on sloping farmland with long-term fertilization experiment in central Guizhou were analyzed from 2008to2012.The results showed that maize yield increased by 23.8% with optimized fertilization.The average efficiency of nitrogen,phosphorus,and potassium fertilizer increased by 2.7%,4.7% and 3.9%,respectively.It could be concluded that optimized fertilization improved nutrient absorption,therefore increased yield of summer maize.The optimized fertilization treatment had the highest fertilizer efficiency,therefore,it could be implemented for summer maize on yellow soil in sloping land.