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Effect of straw and inhibitors on the fate of nitrogen applied to paddy soil

التفاصيل البيبلوغرافية
العنوان: Effect of straw and inhibitors on the fate of nitrogen applied to paddy soil
المؤلفون: Chunxiao Yu, Xueshi Xie, Hengzhe Yang, Lijie Yang, Wentao Li, Kaikuo Wu, Weiming Zhang, Chen Feng, Dongpo Li, Zhijie Wu, Lili Zhang
المصدر: Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
بيانات النشر: Nature Portfolio, 2020.
سنة النشر: 2020
المجموعة: LCC:Medicine
LCC:Science
مصطلحات موضوعية: Medicine, Science
الوصف: Abstract A pot experiment was used to explore the distribution of fertilizer N and agronomic effects in a paddy soil-rice (Oryza sativa L.) system. Five treatments were set: without nitrogen, straw and inhibitor (C), urea (U), urea + straw (US), urea + urease + nitrification inhibitor (UI) and urea + urease + nitrification inhibitor + straw (UIS). Soil and urea-derived microbial biomass N increased significantly in US and UIS compared with straw-free treatments at seedling and tillering, indicating that biotic process play an important role in the retention of fertilizer N with straw addition. About 10% urea-N was recovered as fixed ammonium (FA) at seedling stage, subsequently released at tillering and maturation regardless of treatments, which emphasizes the importance of FA in the retention and supply of fertilizer N in paddy soils. Compared with U, rice yield and N uptake in US decreased by 7.8% and 25.2% respectively, while inhibitors (UIS) alleviated the reduction by 16.4% and 31.6%. The current research indicated UIS is recommended as the most appropriate management strategy in paddy soils of Northeast China based on N dynamics. But the economic effect as well as the field-scale validation need to be further evaluated.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2045-2322
Relation: https://doaj.org/toc/2045-2322
DOI: 10.1038/s41598-020-78648-w
URL الوصول: https://doaj.org/article/a4272fd2a9be405690a2909b48b6f77e
رقم الأكسشن: edsdoj.4272fd2a9be405690a2909b48b6f77e
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20452322
DOI:10.1038/s41598-020-78648-w