high yield spring maize 高产春玉米
Winter wheat yield was more sensitive to rainfall and spring maize yield more influenced by previous crop stubbles in rotation system.
在轮作条件下，冬小麦的产量更容易受到降水的影响，而春玉米的产量更容易受茬口的影响。
Results showed that nitrogen quantity was the chief factor to affect spring maize yield, irrigation quantity was the second factor, phosphorus quantity was the third.
结果表明，在试验年施氮量对产量影响最大，灌溉量次之，施磷量最小。
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