Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/jsfa.11394 |
Deficit drip irrigation based on crop evapotranspiration and precipitation forecast improves water- use efficiency and grain yield of summer maize | |
Lu, Junsheng; Ma, Lihui; Hu, Tiantian; Geng, Chenming; Yan, Shicheng | |
通讯作者 | Hu, TT (corresponding author), Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China. |
来源期刊 | JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE |
ISSN | 0022-5142 |
EISSN | 1097-0010 |
出版年 | 2021-07 |
英文摘要 | BACKGROUND Limited and erratic precipitation with inefficient irrigation scheduling often leads to an unstable crop yield and low water-use efficiency (WUE) in semi-arid and semi-humid regions. A 2-year field experiment was conducted to evaluate the effect of three irrigation strategies (conventional irrigation (CK), full-drip irrigation (FI), based on crop evapotranspiration and precipitation forecast, and deficit drip irrigation (DI) (75% FI)) on photosynthetic characteristics, leaf-to-air temperature difference ( increment T), grain yield, and the WUE of summer maize. RESULTS The results showed that the daily average net photosynthetic rate (Pn) of DI and FI increased by 25.4% and 25.8% at jointing stage in 2018, and 26.3% and 26.5% at grain-filling stage in 2019 compared with CK, respectively. At jointing stage in 2018 and grain-filling stage in 2019, the transpiration rate (Tr) of DI was significantly lower than that of FI (P < 0.05) but there was insignificant difference in Pn value (P > 0.05). The increment T between 12:00-14:00 of DI and FI was significantly lower than that of CK at jointing stage in 2018 and grain-filling stage in 2019 (P < 0.05). The 2-year average grain yields of DI and FI were 11.4 and 11.5 t ha(-1), which increased by 32.4% and 32.8% compared with CK, respectively. The WUE of DI was 2.82 kg m(-3), which was 17.9% and 33.8% higher than that of FI and CK, respectively. CONCLUSION Deficit drip irrigation based on crop evapotranspiration and precipitation forecast improves crop WUE and maintains high grain yields in semi-arid and semi-humid regions. (c) 2021 Society of Chemical Industry. |
英文关键词 | irrigation strategy drought stress photosynthetic rate leaf-to-air temperature difference transpiration rate |
类型 | Article ; Early Access |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:000669054100001 |
WOS关键词 | ROTATION SYSTEM ; CORN PRODUCTION ; DROUGHT STRESS ; LOESS PLATEAU ; RICE ; PHOTOSYNTHESIS ; PRODUCTIVITY ; NITRATE ; CANOPY ; GROWTH |
WOS类目 | Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology |
WOS研究方向 | Agriculture ; Chemistry ; Food Science & Technology |
来源机构 | 兰州大学 ; 西北农林科技大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/367552 |
作者单位 | [Lu, Junsheng; Hu, Tiantian; Geng, Chenming] Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling, Shaanxi, Peoples R China; [Lu, Junsheng; Hu, Tiantian; Geng, Chenming] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China; [Ma, Lihui] Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China; [Yan, Shicheng] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou, Peoples R China |
推荐引用方式 GB/T 7714 | Lu, Junsheng,Ma, Lihui,Hu, Tiantian,et al. Deficit drip irrigation based on crop evapotranspiration and precipitation forecast improves water- use efficiency and grain yield of summer maize[J]. 兰州大学, 西北农林科技大学,2021. |
APA | Lu, Junsheng,Ma, Lihui,Hu, Tiantian,Geng, Chenming,&Yan, Shicheng.(2021).Deficit drip irrigation based on crop evapotranspiration and precipitation forecast improves water- use efficiency and grain yield of summer maize.JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE. |
MLA | Lu, Junsheng,et al."Deficit drip irrigation based on crop evapotranspiration and precipitation forecast improves water- use efficiency and grain yield of summer maize".JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE (2021). |
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