施氮量对油后直播棉花产量和氮肥利用率的影响
刘芳,李飞,王文龙,罗安红
The Effects of Different Nitrogen Application Rates on Cotton Yield and Nitrogen Use Efficiency
中国棉花 . 2019, (3): 22 -24 .  DOI: 10.11963/1000-632X.lflf.20190220