Quantification of yield gap and nutrient use efficiency of irrigated rice in China
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- 作者：Xinpeng Xua ; b ; Ping Hea ; c ; phe@ipni.net" class="auth_mail" title="E-mail the corresponding author ; phe@caas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Shicheng Zhaoa ; Shaojun Qiua ; Adrian M. Johnstond ; Wei Zhoua ; zhouwei02@caas.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：AE ; agronomic efficiency ; FP ; farmers&rsquo ; practice ; IKS ; indigenous potassium supply ; INS ; indigenous nitrogen supply ; IPS ; indigenous phosphorus supply ; NUE ; nutrient use efficiency ; OPT ; optimum management ; PFP ; partial factor productivity ; RE ; recovery efficiency ; YA ; attainable yield ; YG ; yield gap ; YR ; yield response
- 刊名：Field Crops Research
- 出版年：2016
- 出版时间：1 February 2016
- 年：2016
- 卷：186
- 期：Complete
- 页码：58-65
- 全文大小：1532 K
文摘
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Large on-farm experimental data was used to assess yield gap and nutrient use efficiency.
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The exploitable yield gaps between OPT and FP of four rice planting types averaged 0.6 t ha−1.
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Variation in yield responses was related to indigenous nutrients supplies.
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Nutrient use efficiencies in optimum management were higher than farmers’ practices.