2013•He'nan nongye kexueRequires access
Effect of Different Tillage Methods on Growth and Yield of Summer Maize
Zhang Guo-h
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Abstract
The field experiment was conducted to study the effect of different tillage models(conventional tillage,deep tillage+straw returning,deep tillage+straw returning,and every other year deep tillage+straw returning)on the leaf area index,grain filling rate and yield of summer maize.The results showed that deep tillage+straw returning could significantly increase the leaf area index,promote the grain filling rate,and improve the grain yield by 4.48%-6.65%compared to the conventional tillage+straw returntng.Without straw returning for 2 years,the gain yield decreased.The highest yield was from the continuous deep tillage+straw returning,which gave an average yield increase of 6.48% in two years.