Optimizing water use efficiency and economic return of super high yield spring maize under drip irrigation and plastic mulching in arid areas of China

2017 ◽  
Vol 211 ◽  
pp. 137-146 ◽  
Author(s):  
Guoqiang Zhang ◽  
Chaowei Liu ◽  
Chunhua Xiao ◽  
Ruizhi Xie ◽  
Bo Ming ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Drip Irrigation ◽  
High Yield ◽  
Arid Areas ◽  
Economic Return ◽  
Spring Maize ◽  
Plastic Mulching ◽  
Use Efficiency

scholarly journals Improving Water Use Efficiency of Spring Maize by Adopting Limited Supplemental Irrigation Following Sufficient Pre-Sowing Irrigation in Northwest China

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 802 ◽  
Author(s):  
Zhou ◽  
Hu ◽  
Zhou ◽  
Wang ◽  
Ran
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Use ◽  
Root Length Density ◽  
Northwest China ◽  
High Rate ◽  
High Yield ◽  
Supplemental Irrigation ◽  
Spring Maize ◽  
Use Efficiency

In order to improve the water use efficiency (WUE) of spring maize in northwest China, the irrigation strategy of adopting limited supplemental irrigation following a high quota pre-sowing irrigation was evaluated under field conditions in 2016 and 2018. There were three treatments (W1, W2 and W3) differing in designed wetting depth (Dh) where soil water was replenished. Dh in W1, W2 and W3 were 0–40, 0–50 and 0–60 cm, respectively. The limited supplemental irrigation was adopted to improve soil water content (SWC) within Dh to field capacity (θFC) when SWC within 0–40 cm layer decreased to 60%θFC following a high rate of pre-sowing irrigation. Results showed that the smaller Dh was beneficial for improving root length density and enhance the utilization of water in subsoil. In both seasons, different Dh led to similar grain yields, which were comparable to the typical regional yield (14.3 t ha−1). The highest WUE (2.79 kg m−3) was achieved in W1 and was 13% more than the typical regional level of 2.46 kg m−3, implying it was adequate for achieving high yield and WUE to maintain SWC in 0–40 cm above 60% θFC with not replenishing soil water in 40–100 cm during the growth season after pre-sowing irrigation.

scholarly journals Rice Performance and Water Use Efficiency under Plastic Mulching with Drip Irrigation

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e83103 ◽  
Author(s):  
Haibing He ◽  
Fuyu Ma ◽  
Ru Yang ◽  
Lin Chen ◽  
Biao Jia ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Drip Irrigation ◽  
Plastic Mulching ◽  
Use Efficiency

Effects of Drip Irrigation Patterns on Wheat Yield and Water Use Efficiency in Heilonggang Region

2013 ◽  
Vol 39 (9) ◽  
pp. 1687 ◽  
Author(s):  
Zi-Jin NIE ◽  
Yuan-Quan CHEN ◽  
Jian-Sheng ZHANG ◽  
Jiang-Tao SHI ◽  
Chao LI ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Drip Irrigation ◽  
Wheat Yield ◽  
Use Efficiency ◽  
Irrigation Patterns

scholarly journals Potato growth, photosynthesis, yield, and quality response to regulated deficit drip irrigation under film mulching in a cold and arid environment

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fuqiang Li ◽  
Haoliang Deng ◽  
Yucai Wang ◽  
Xuan Li ◽  
Xietian Chen ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Deficit ◽  
Water Use ◽  
Drip Irrigation ◽  
Seedling Stage ◽  
Tuber Initiation ◽  
Starch Accumulation ◽  
Tuber Bulking ◽  
Use Efficiency ◽  
Potato Growth

AbstractThe effects of the amount and timing of regulated deficit drip irrigation under plastic film on potato (‘Qingshu 168’) growth, photosynthesis, yield, water use efficiency, and quality were examined from 2017 to 2019 in cold and arid northwestern China. In the four stages of potato growth (seedling, tuber initiation, tuber bulking, starch accumulation), eight treatments were designed, with a mild deficit was in treatments WD1 (seedling), WD2 (tuber initiation), WD3 (tuber bulking), and WD4 (starch accumulation); and a moderate deficit in WD5 (seedling), WD6 (tuber initiation), WD7 (tuber bulking), and WD8 (starch accumulation). The net photosynthetic rate, stomatal conductance, and transpiration rate decreased significantly under water deficit in the tuber formation and starch accumulation stages. Although water deficit reduced potato yields, a mild deficit in the seedling stage resulted in the highest yield and water use efficiency at 43,961.91 kg ha−1 and 8.67 kg m−3, respectively. The highest overall quality was in potatoes subjected to mild and moderate water deficit in the seedling stage. Principal component analysis identified mild water stress in the seedling stage as the optimum regulated deficit irrigation regime. The results of this study provide theoretical and technical references for efficient water-saving cultivation and industrialization of potato in northwestern China.

Water use efficiency and fruit quality of table grape under alternate partial root-zone drip irrigation

2008 ◽  
Vol 95 (6) ◽  
pp. 659-668 ◽  
Author(s):  
Taisheng Du ◽  
Shaozhong Kang ◽  
Jianhua Zhang ◽  
Fusheng Li ◽  
Boyuan Yan
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Fruit Quality ◽  
Drip Irrigation ◽  
Root Zone ◽  
Table Grape ◽  
Use Efficiency
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