江苏省水稻减肥增产的潜力与机制分析
郭俊杰,柴以潇,李玲,高丽敏,谢凯柳,凌宁,郭世伟(
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The Potential and Related Mechanisms of Increasing Rice Yield by Reducing Chemical Nitrogen Application in Jiangsu Province
GUO JunJie,CHAI YiXiao,LI Ling,GAO LiMin,XIE KaiLiu,LING Ning,GUO ShiWei()
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图5. 水稻化学氮肥减量效应示意图
在虚线箭头上的数值表示各施肥时期的基于传统总施氮量的氮肥减量比例。在实线箭头上的数值表示氮肥减量对箭头所指指标的影响,括号中加号（+）表示正效应,减号（-）表示负效应
Fig. 5. The schematic diagram of response of rice yield formation and nitrogen utilization to reducing chemical nitrogen application
The value close to the dotted arrow indicated that the reduction rate of corresponding fertilization stage based on the total conventional nitrogen application. The value close to the implementation arrow indicates the effect of reducing nitrogen application on the variable in which the arrow points. The (+) indicates the positive effect and the (-) indicates negative effect
