The objectives of field management in the ear of corn are centered on ear promotion， root promotion， leaf promotion and stalk control.
A.正确
B.错误
正确答案：错误
The objectives of field management in the ear of corn are centered on ear promotion， root promotion， leaf promotion and stalk co
6次阅读
With the increase in planting density， corn production can continue to increase.
The whole process of corn mechanization is the only way for modern corn production， and the mechanical grain harvest is the last
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