控释尿素基施深度对夏玉米产量和氮素利用的影响
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Effects of Base Application Depths of Controlled Release Urea on Yield and Nitrogen Utilization of Summer Maize
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图4. 控释尿素不同施肥深度对夏玉米氮素积累量的影响 |
Fig. 4. Effects of different fertilization depths of controlled release urea on nitrogen accumulation of summer maize |
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