Narrowing yield gaps and increasing nutrient use efficiencies using the Nutrient Expert system for maize in Northeast China
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- 作者：Xinpeng Xua ; b ; Ping Heb ; 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 ; Mirasol F. Pampolinod ; Yuying Lie ; Shuangquan Liue ; Jiagui Xief ; Yunpeng Houf ; Wei Zhoub ; zhouwei02@caas.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：AE ; agronomic efficiency ; FP ; farmers&rsquo ; fertilizer practice ; GHG ; greenhouse gas ; GRF ; gross return above fertilizer cost ; NE ; Nutrient Expert ; OPTS ; soil testing ; PFP ; partial factor productivity ; RE ; recovery efficiency ; TFC ; total fertilizer cost
- 刊名：Field Crops Research
- 出版年：2016
- 出版时间：1 August 2016
- 年：2016
- 卷：194
- 期：Complete
- 页码：75-82
- 全文大小：681 K
文摘
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On-farm location experiments and simulation model were combined to test the benefit across three years of the NE system.
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Nutrient Expert attained 80% of potential yield, and increased average yield by 0.9 t ha−1 than with farmers’ fertilizer practice.
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Nutrient Expert considerably increased nutrient use efficiency than with farmers’ fertilizer practice.
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Nutrient Expert decreased total estimated GHG emissions and GHG emission intensity by 17% and 23% than with farmers’ fertilizer practice, respectively.