Effects of pre-Sowing Irrigation on Crop Water Consumption, Grain Yield and Water Productivity of Winter Wheat in the North China Plain

2015 ◽  
Vol 64 (4) ◽  
pp. 566-574 ◽  
Author(s):  
Yang Gao ◽  
Xiaojun Shen ◽  
Xinqiang Li ◽  
Zhaojiang Meng ◽  
Jingsheng Sun ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Water Consumption ◽  
North China Plain ◽  
North China ◽  
Water Productivity ◽  
Crop Water ◽  
The North ◽  
The North China Plain ◽  
Crop Water Consumption

Effect of diversified crop rotations on groundwater levels and crop water productivity in the North China Plain

2015 ◽  
Vol 522 ◽  
pp. 428-438 ◽  
Author(s):  
Xiaolin Yang ◽  
Yuanquan Chen ◽  
Steven Pacenka ◽  
Wangsheng Gao ◽  
Li Ma ◽  
...  
Keyword(s):  
North China Plain ◽  
North China ◽  
Water Productivity ◽  
Crop Rotations ◽  
Crop Water ◽  
Groundwater Levels ◽  
The North ◽  
Crop Water Productivity ◽  
The North China Plain

scholarly journals Does Crop Rotation Enhance Groundwater Health? A Review of the Winter Wheat Fallow Policy in the North China Plain

Water ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2416
Author(s):  
Ming Lei ◽  
Yuqian Zhang ◽  
Yuxuan Dang ◽  
Xiangbin Kong ◽  
Jingtao Yao
Keyword(s):  
Winter Wheat ◽  
Water Consumption ◽  
North China Plain ◽  
North China ◽  
Shallow Groundwater ◽  
Agricultural Water ◽  
The North ◽  
The North China Plain ◽  
The World ◽  
Shallow Groundwater Level

Agricultural water management is a vital component of realizing the United Nation’s Sustainable Development Goals because of water shortages worldwide leading to a severe threat to ecological environments and global food security. As an agro-intensified irrigation area, the North China Plain (NCP) is the most important grain basket in China, which produces 30%–40% of the maize and 60%–80% of the wheat for China. However, this area has already been one of the largest groundwater funnels in the world due to long-term over-exploitation of groundwater. Due to the low precipitation during the growing period, winter wheat requires a large amount of groundwater to be pumped for irrigation, which consumes 70% of the groundwater irrigation. To alleviate the overexploitation of groundwater, the Chinese government implemented the Winter Wheat Fallow Policy (WWFP) in 2014. The evaluation and summarization of the WWFP will be beneficial for improving the groundwater overexploitation areas under high-intensity irrigation over all the world. So far, there have been few attempts at estimating the effectiveness of this policy. To fill this gap, we assessed the planting area of field crops and calculated the evapotranspiration of crops based on remote-sensed and meteorological data in the key area—Hengshui. We compared the agricultural water consumption before and after the implementation of this policy, and we analyzed the relationship between changes in crop planting structure and groundwater variations based on geographically weighted regression. Our results showed the overall classification accuracies for 2013 and 2015 were 85.56% and 82.22%, respectively. The planting area of winter wheat, as the most reduced crop, decreased from 35.71% (314,053 ha) in 2013 to 32.98% (289,986 ha) in 2015. The actual reduction in area of winter wheat reached 84% of the target (26 thousand ha) of the WWFP. The water consumption of major crops decreased from 2.98 billion m3 of water in 2013 to 2.83 billion m3 in 2015, a total reduction of 146 million m3, and 88.43% of reduced target of the WWFP (166 million m3). The planting changes of winter wheat did not directly affect the change of shallow groundwater level, but ET was positively related to shallow groundwater level and precipitation was negatively related to shallow groundwater levels. This study can provide a basis for the WWFP’s improvement and the development of sustainable agriculture in high-intensity irrigation areas.

Improving water use efficiency and grain yield of winter wheat by optimizing irrigations in the North China Plain

2018 ◽  
Vol 221 ◽  
pp. 219-227 ◽  
Author(s):  
Xuexin Xu ◽  
Meng Zhang ◽  
Jinpeng Li ◽  
Zuqiang Liu ◽  
Zhigan Zhao ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
North China Plain ◽  
North China ◽  
The North ◽  
The North China Plain ◽  
Use Efficiency

Study of the relationship between field lodging and stem quality traits of winter wheat in the north China plain

2019 ◽  
Vol 70 (9) ◽  
pp. 772 ◽  
Author(s):  
Su-Wei Feng ◽  
Zhen-Gang Ru ◽  
Wei-Hua Ding ◽  
Tie-Zhu Hu ◽  
Gan Li
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
North China Plain ◽  
North China ◽  
Bending Strength ◽  
Quality Traits ◽  
Lodging Resistance ◽  
The North ◽  
The North China Plain ◽  
Stem Quality

Winter wheat (Triticum aestivum L.) production in the North China Plain (NCP) is threatened by wheat lodging. Therefore, enhancing plant lodging resistance by improving stem quality traits is crucial to maintaining high stable yields of winter wheat. A consecutive 7-year field experiment was conducted to study the effects of stem traits on lodging resistance and the yield of four winter wheat cultivars (Bainong 418, Aikang 58, Wenmai 6 and Zhoumai 18). The results indicated that rainfall is often accompanied by strong winds that can cause lodging in the field. Stalk bending strength and wall thickness of the second internode showed significant negative correlations with lodging index, and a higher lodging index indicated increased lodging risk, which, in turn, could seriously affect the grain yield of wheat. Significant regression relationships were observed between lodging index and population lodging resistance strength, as measured using a crop lodging resistance electronic measuring device. Statistical analysis revealed that yield components and the grain yield of Bainong 418 were higher than those of the other cultivars; there was no significant difference between Bainong 418 and Aikang 58 in lodging index, stalk bending strength or single-stalk and population lodging resistance strengths at anthesis and the middle filling stages, but the mean plant height of Bainong 418 was significantly higher than that of Aikang 58. These results provide a new and reliable method for assessing lodging resistance capacity and indicate that greater lodging resistance, as determined by simultaneously considering plant height and basal stem strength, is an important way to achieve high, stable yield in winter wheat.

scholarly journals Assessment of the AquaCrop Model for Use in Simulation of Irrigated Winter Wheat Canopy Cover, Biomass, and Grain Yield in the North China Plain

PLoS ONE ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. e86938 ◽  
Author(s):  
Xiu-liang Jin ◽  
Hai-kuan Feng ◽  
Xin-kai Zhu ◽  
Zhen-hai Li ◽  
Sen-nan Song ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
North China Plain ◽  
North China ◽  
Canopy Cover ◽  
The North ◽  
The North China Plain ◽  
Aquacrop Model

scholarly journals Modeling Water and Nitrogen Balance of Different Cropping Systems in the North China Plain

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 696 ◽  
Author(s):  
Shah Jahan Leghari ◽  
Kelin Hu ◽  
Hao Liang ◽  
Yichang Wei
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
North China Plain ◽  
North China ◽  
Cropping Systems ◽  
Summer Maize ◽  
The North ◽  
The North China Plain ◽  
Spring Maize ◽  
N Use

The North China Plain (NCP) is experiencing serious groundwater level decline and groundwater nitrate contamination due to excessive water pumping and application of nitrogen (N) fertilizer. In this study, grain yield, water and N use efficiencies under different cropping systems including two harvests in 1 year (winter wheat–summer maize) based on farmer (2H1Y)FP and optimized practices (2H1Y)OPT, three harvests in 2 years (winter wheat–summer maize–spring maize, 3H2Y), and one harvest in 1 year (spring maize, 1H1Y) were evaluated using the water-heat-carbon-nitrogen simulator (WHCNS) model. The 2H1YFP system was maintained with 100% irrigation and fertilizer, while crop water requirement and N demand for other cropping systems were optimized and managed by soil testing. In addition, a scenario analysis was also performed under the interaction of linearly increasing and decreasing N rates, and irrigation levels. Results showed that the model performed well with simulated soil water content, soil N concentration, leaf area index, dry matter, and grain yield. Statistically acceptable ranges of root mean square error, Nash–Sutcliffe model efficiency, index of agreement values close to 1, and strong correlation coefficients existed between simulated and observed values. We concluded that replacing the prevalent 2H1YFP with 1H1Y would be ecofriendly at the cost of some grain yield decline. This cropping system had the highest average water use (2.1 kg m−3) and N use efficiencies (4.8 kg kg–1) on reduced water (56.64%) and N (81.36%) inputs than 2H1YFP. Whereas 3H2Y showed insignificant results in terms of grain yield, and 2H1YFP was unsustainable. The 2H1YFP system consumed a total of 745 mm irrigation and 1100 kg N ha–1 in two years. When farming practices were optimized for two harvests in 1 year system (2H1Y)OPT, then grain yield improved and water (18.12%) plus N (61.82%) consumptions were minimized. There was an ample amount of N saved, but water conservation was still unsatisfactory. However, considering the results of scenario analyses, it is recommended that winter wheat would be cultivated at <200 mm irrigation by reducing one irrigation event.

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