Effect of water saving management practices and nitrogen fertilizer rate on crop yield and water use efficiency in a winter wheat–summer maize cropping system

2011 ◽  
Vol 122 (2) ◽  
pp. 157-163 ◽  
Author(s):  
Jian-bin Zhou ◽  
Chun-yang Wang ◽  
Hong Zhang ◽  
Fang Dong ◽  
Xian-feng Zheng ◽  
...  
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhen Zhang ◽  
Yongli Zhang ◽  
Yu Shi ◽  
Zhenwen Yu

AbstractThis study aims to investigate optimization of the basal-top-dressing nitrogen ratio for improving winter wheat grain yield, nitrogen use efficiency, water use efficiency and physiological parameters under supplemental irrigation. A water-saving irrigation (SI) regime was established and sufficient irrigation (UI) was used as a control condition. The split-nitrogen regimes used were based on a identical total nitrogen application rate of 240 kg ha−1 but were split in four different proportions between sowing and the jointing stage; i.e. 10:0 (N1), 7:3 (N2), 5:5 (N3) and 3:7 (N4). Compared with the N1, N2 and N4 treatments, N3 treatment increased grain yield, nitrogen and water use efficiencies by 5.27–17.75%, 5.68–18.78% and 5.65–31.02%, respectively, in both years. The yield advantage obtained with the optimized split-nitrogen fertilizer application may be attributable to greater flag leaf photosynthetic capacity and grain-filling capacity. Furthermore, the N3 treatment maintained the highest nitrogen and water use efficiencies. Moreover, we observed that water use efficiency of SI compared with UI increased by 9.75% in 2016 and 10.79% in 2017, respectively. It can be concluded that SI along with a 5:5 basal-top-dressing nitrogen ratio should be considered as an optimal fertigation strategy for both high grain yield and efficiency in winter wheat.


2020 ◽  
Vol 732 ◽  
pp. 139321
Author(s):  
Fenglian Lv ◽  
Jiashan Song ◽  
Donna Giltrap ◽  
Yongtao Feng ◽  
Xueyun Yang ◽  
...  

2009 ◽  
Vol 35 (9) ◽  
pp. 1708-1714 ◽  
Author(s):  
Xue-Li FU ◽  
Hui ZHANG ◽  
Ji-Zeng JIA ◽  
Li-Feng DU ◽  
Jin-Dong FU ◽  
...  

2014 ◽  
Vol 40 (10) ◽  
pp. 1797 ◽  
Author(s):  
Ya-Li ZHAO ◽  
Hai-Bin GUO ◽  
Zhi-Wei XUE ◽  
Xin-Yuan MU ◽  
Chao-Hai LI

2012 ◽  
Vol 19 (5) ◽  
pp. 1104-1108
Author(s):  
Yun-Zhou QIAO ◽  
Fen RUAN ◽  
Bao-Di DONG ◽  
Chang-Hai SHI ◽  
Hong-Mei ZHAI ◽  
...  

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