文献类型：期刊文献

英文题名：A 2-year study of theimpact of reduced nitrogen application combined with double inhibitors on soil nitrogen transformation and wheat productivity under drip irrigation

作者：Tao, Rui[1];Li, Jun[1,2];Hu, Baowei[1];Shah, Jawad Ali[2];Chu, Guixin[1]

机构：[1]Shaoxing Univ, Sch Life Sci, Shaoxing, Zhejiang, Peoples R China;[2]Shihezi Univ, Xinjiang Prod & Construct Grp, Oasis Ecoagr Key Lab, Dept Resources & Environm Sci,Agron Coll, Shihezi, Peoples R China

年份：2021

卷号：101

期号：5

起止页码：1772

外文期刊名：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE

收录：SCI-EXPANDED(收录号：WOS:000574907500001)、、Scopus(收录号：2-s2.0-85092028603)、WOS

基金：This research was funded jointly by the National Key Technologies R&D Program of China (2016YFC0501404), Basic Public Welfare Research Project of Zhejiang Province (LGN20C150003), P. R. China, and Key Natural Science Foundation of Shaoxing University (2018LG1003). We thank associate Professor Yang Mingfeng in Wulan Wusu Agro-meteorological experimental station of Shihezi for the share of the meteorological data in 2013 and 2014.

语种：英文

外文关键词：wheat; nitrapyrin; N-(n-butyl) thiophosphorictriamide; drip irrigation; nitrogen use efficiency

外文摘要：BACKGROUND Nitrification inhibitors (NIs) and urease inhibitors (UIs) can decrease the risk of nitrogen (N) loss and extend N uptake by plants. However, there are few case studies about reduced N application combined with double inhibitors (DIs, NI plus UI), especially under drip irrigation systems. A 2-year field experiment was therefore conducted to explore the effect of 80% N application rate combined with NI or DIs on soil N transformation, wheat productivity and N use efficiency (NUE) in a drip-irrigated field. The four treatments included a no-fertilizer control, 100% urea, 80% urea + NI (nitrapyrin) and 80% urea + DIs (nitrapyrin andN-(n-butyl) thiophosphorictriamide (NBPT)). RESULTS Our results showed that the 80% urea + DIs treatment significantly increased the ratio of NH(4)(+)to NO(3)(-)and N content (urea-N, NH4+-N and NO3--N) in soil at 0-20 cm depth (P< 0.05) at the heading stage and the filling stage of wheat in both 2013 and 2014, relative to the 100% urea treatment. A total of 80% urea + NI treatment decreased wheat N uptake and wheat productivity (plant biomass and yield) compared to 100% urea treatments (P< 0.05). However, application of 80% urea combined with DIs achieved equivalent wheat productivity with 100% urea treatment. Moreover, the greatest NUE (43.6%) was recorded with the application of DIs. CONCLUSIONS Cutting the N application rate by 20% combined with NBPT and nitrapyrin could provide a sustainable fertilization strategy for wheat production under drip irrigation. (c) 2020 Society of Chemical Industry