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| DOI | 10.1016/j.fcr.2021.108055 |
| Plastic film mulching affects the critical nitrogen dilution curve of drip-irrigated maize | |
| Zhou, Lifeng; Feng, Hao; Zhao, Wenzhi | |
| 通讯作者 | Zhou, LF (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Chinese Ecosyst Res Network, Linze Inland River Basin Res Stn, Lanzhou 730000, Peoples R China. |
| 发表日期 | 2021 |
| ISSN | 0378-4290 |
| EISSN | 1872-6852 |
| 卷号 | 263 |
| 英文摘要 | Critical nitrogen dilution curves (CNDC) can efficiently diagnose nitrogen (N) condition of crops. Unfortunately, no CNDC exits for mulched drip-irrigated crops. Here we determine the CNDCs of drip-irrigated maize (Zea mays L.) with and without plastic mulch and investigate effects of plastic mulch on soil NO3- -N concentration in root zone (Nsoil), maize morphology, and CNDC changes. Aboveground dry biomass (DM), crop N concentration, soil N concentration, and related morphological characteristics of maize were measured in Northwest China under five N application rates with and without plastic mulch to calculate critical N concentration (Nc) and develop CNDCs. Plastic film mulching decreased Nsoil by 16.5 % and increased DM by 25.9 %. Mulching increased DM more than root growth and resulted in a lower root to shoot ratio compared with that of no mulching. Plastic film mulching affected CNDC and grain yields by increasing DM, thus lowering root to shoot ratio. CNDCs were Nc = 3.58DM- 0.36 [R2 = 0.98] for drip-irrigated maize and Nc = 4.17DM-0.35 [R2 = 0.94] for mulched drip-irrigated maize. Mulching lowered nitrogen nutrition index at silking stage and increased it at physiological maturity stage. These results indicate that CNDC can be used to correctly determine N application rates for mulched dripirrigated maize production. |
| 关键词 | NUTRITION INDEXSPRING MAIZEWHEATSOILCHALLENGEMOISTURETILLAGEGROWTHREGIONCROPS |
| 英文关键词 | Mulched drip irrigation; Critical nitrogen dilution curve; Root to shoot ratio; Spring maize |
| 语种 | 英语 |
| WOS研究方向 | Agriculture |
| WOS类目 | Agronomy |
| WOS记录号 | WOS:000663126000007 |
| 来源期刊 | FIELD CROPS RESEARCH
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/253662 |
| 作者单位 | [Zhou, Lifeng; Zhao, Wenzhi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Chinese Ecosyst Res Network, Linze Inland River Basin Res Stn, Lanzhou 730000, Peoples R China; [Zhou, Lifeng; Zhao, Wenzhi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China; [Feng, Hao] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Lifeng,Feng, Hao,Zhao, Wenzhi. Plastic film mulching affects the critical nitrogen dilution curve of drip-irrigated maize[J]. 中国科学院西北生态环境资源研究院,2021,263. |
| APA | Zhou, Lifeng,Feng, Hao,&Zhao, Wenzhi.(2021).Plastic film mulching affects the critical nitrogen dilution curve of drip-irrigated maize.FIELD CROPS RESEARCH,263. |
| MLA | Zhou, Lifeng,et al."Plastic film mulching affects the critical nitrogen dilution curve of drip-irrigated maize".FIELD CROPS RESEARCH 263(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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