Plastic film mulching affects the critical nitrogen dilution curve of drip-irrigated maize
文献类型：期刊论文
| 作者 | Zhou, Lifeng1,2; Feng, Hao3; Zhao, Wenzhi1,2 |
| 刊名 | FIELD CROPS RESEARCH
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 263页码:8 |
| 关键词 | Mulched drip irrigation Critical nitrogen dilution curve Root to shoot ratio Spring maize |
| ISSN号 | 0378-4290 |
| DOI | 10.1016/j.fcr.2021.108055 |
| 通讯作者 | Zhou, Lifeng(zhoulf@lzb.ac.cn) |
| 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. |
| WOS关键词 | NUTRITION INDEX ; SPRING MAIZE ; DRY-MATTER ; WHEAT ; SOIL ; CROPS ; CHALLENGE ; MOISTURE ; TILLAGE ; GROWTH |
| 资助项目 | Strategic Priority Research Program of the CAS[XDA23060302] ; State Key Program of National Natural Science of China[41630861] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000663126000007 |
| 出版者 | ELSEVIER |
| 资助机构 | Strategic Priority Research Program of the CAS ; State Key Program of National Natural Science of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164126]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhou, Lifeng |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Chinese Ecosyst Res Network, Linze Inland River Basin Res Stn, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China 3.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]. FIELD CROPS RESEARCH,2021,263:8. |
| APA | Zhou, Lifeng,Feng, Hao,&Zhao, Wenzhi.(2021).Plastic film mulching affects the critical nitrogen dilution curve of drip-irrigated maize.FIELD CROPS RESEARCH,263,8. |
| MLA | Zhou, Lifeng,et al."Plastic film mulching affects the critical nitrogen dilution curve of drip-irrigated maize".FIELD CROPS RESEARCH 263(2021):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。