Estimation of nitrogen fertilizer requirement for rice crop using critical nitrogen dilution curve

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• 作者：Syed Tahir Ata-Ul-Karim ; Xiaojun Liu ; Zhenzhou Lu ; Hengbiao Zheng ; Weixing Cao ; Yan Zhu ; ^{yanzhu@njau.edu.cn}
• 关键词：Nitrogen dilution curve ; Nitrogen management ; Nitrogen nutrition index ; Nitrogen requirement ; Nitrogen recommendation ; Grain yield
• 刊名：Field Crops Research
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：201
• 期：Complete
• 页码：32-40
• 全文大小：1601 K
• 卷排序：201

文摘

Estimating in-season nitrogen requirement is essential for crop nitrogen management. Critical nitrogen dilution curve is an effective and simple tool for assessment of in-season crop nitrogen requirement. Crop growth stages can play an essential role in quantifying in-season nitrogen requirement. This study will offer a useful method for guiding precision N management during rice growth.