Ridge–furrow rainwater harvesting combined with supplementary irrigation: Water-saving and yield-maintaining mode for winter wheat in a semiarid region based on 8-year in-situ experiment

2022 ◽  
Vol 259 ◽  
pp. 107239
Author(s):  
Chun Zhang ◽  
Zhaoyun Dong ◽  
Qin Guo ◽  
Zhilin Hu ◽  
Juan Li ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Irrigation Water ◽  
Rainwater Harvesting ◽  
Water Saving ◽  
Semiarid Region ◽  
In Situ Experiment ◽  
Supplementary Irrigation

scholarly journals Split nitrogen fertilizer application improved grain yield in winter wheat (Triticum aestivum L.) via modulating antioxidant capacity and 13C photosynthate mobilization under water-saving irrigation conditions

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhen Zhang ◽  
Zhenwen Yu ◽  
Yongli Zhang ◽  
Yu Shi
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Antioxidant Defense System ◽  
Triticum Aestivum L ◽  
Fertilizer Application ◽  
Water Saving ◽  
Nitrogen Management ◽  
Synthetase Activity ◽  
Supplementary Irrigation

AbstractA water-saving cultivation technique of supplementary irrigation based on soil moisture levels has been adopted for winter wheat production in the Huang-Huai-Hai Plain of China, due to the enhanced water-use efficiency. However, appropriate split nitrogen management may further improve crop growth and grain yield. Here, we conducted a 2-year field experiment to determine if split nitrogen management might improve wheat productivity by enhancing 13C photosynthate mobilization and the antioxidant defense system under water-saving conditions. Split nitrogen management involved a constant total nitrogen rate (240 kg ha−1) split in four different proportions between sowing and jointing stage, i.e., 10:0 (N1), 7:3 (N2), 5:5 (N3), and 3:7 (N4). The N3 treatment significantly enhanced “soil-plant analysis development” values, superoxide dismutase antioxidant activity, soluble protein content, sucrose content, and sucrose phosphate synthetase activity, although it reduced the accumulation of malondialdehyde (MDA). The N3 treatment ultimately increased the amount of dry matter assimilation after anthesis significantly. In addition, the 13C isotope tracer experiment revealed that the N3 treatment promoted the assimilation of carbohydrates after anthesis and their partitioning to the developing grains. Compared to the unequal ratio treatments (N1, N2, and N4), the equal ratio treatment (N3) increased grain yield by 5.70–16.72% via increasing 1000-grain weight and number of grains per spike in both growing seasons. Therefore, we recommend the use of a 5:5 basal-topdressing split nitrogen fertilizer application under water-saving irrigation conditions to promote antioxidant enzyme activity and the remobilization of photosynthate after anthesis for improving wheat grain yield.

Species densities, biological interactions and benthic ecosystem functioning: an in situ experiment

2016 ◽  
Vol 547 ◽  
pp. 149-161 ◽  
Author(s):  
DS Clare ◽  
M Spencer ◽  
LA Robinson ◽  
CLJ Frid
Keyword(s):  
Ecosystem Functioning ◽  
Biological Interactions ◽  
In Situ Experiment

Water-saving irrigation modes based on water supply and demand of winter wheat and summer maize

2013 ◽  
Vol 21 (8) ◽  
pp. 951-958 ◽  
Author(s):  
Xiao-Yuan LIU ◽  
Shao-Hui XU ◽  
Jun-Ling CUI ◽  
Qing CHI
Keyword(s):  
Winter Wheat ◽  
Water Supply ◽  
Supply And Demand ◽  
Water Saving ◽  
Summer Maize ◽  
Water Supply And Demand

Treadle pump: A low cost irrigation option for marginal farmers

2018 ◽  
Vol 5 (03) ◽  
Author(s):  
ATIQUR RAHMAN ◽  
ASHUTOSH UPADHYAYA ◽  
BP BHATT
Keyword(s):  
Low Cost ◽  
Water Productivity ◽  
High Water ◽  
Water Saving ◽  
Age Group ◽  
Male And Female ◽  
Human Power ◽  
Dry Spells ◽  
Supplementary Irrigation ◽  
Land Holdings

The population of marginal farmers in India is bound to increase due to continued division of farm holdings. Characteristically, marginal farmers are having more family labours but the production and productivity of their land holdings is low. The foremost reason behind this is the erratic rainfall and lack of assure supplementary irrigation during long dry spells. This paper presents the scope and applicability of a diaphragm based treadle pump in Bihar where groundwater is abundant and available at shallow depths round the year. Therefore, this pump could be very useful for marginal farmers in improving production and productivity of their tiny piece of land, as it uses human power and can be operated by male and female of age group 32- 45 years and lifts water from a depth ranging from 0- 30 feet. The water saving technologies such as bucket kit drum kit etc. could be used with this pump to irrigate the crops with high water productivity.

scholarly journals The water-saving potential of using micro-sprinkling irrigation for winter wheat production on the North China Plain

2021 ◽  
Vol 20 (6) ◽  
pp. 1687-1700
Author(s):  
Li-chao ZHAI ◽  
Li-hua LÜ ◽  
Zhi-qiang DONG ◽  
Li-hua ZHANG ◽  
Jing-ting ZHANG ◽  
...  
Keyword(s):  
Winter Wheat ◽  
North China Plain ◽  
North China ◽  
Water Saving ◽  
Wheat Production ◽  
The North ◽  
The North China Plain

scholarly journals From small wrinkles to Schallamach waves during rubber friction: In situ experiment and 3D simulation

2021 ◽  
Vol 96 ◽  
pp. 107084
Author(s):  
Cui Zhibo ◽  
Su Zhaoqian ◽  
Hou Dandan ◽  
Li Genzong ◽  
Wu Jian ◽  
...  
Keyword(s):  
3D Simulation ◽  
In Situ Experiment ◽  
Rubber Friction
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