scholarly journals Water productivity of two wheat genotypes in response to no-tillage in the North China Plain

2021 ◽  
Vol 67 (No. 4) ◽  
pp. 236-244
Author(s):  
Yuzhao Ma ◽  
Naikun Kuang ◽  
Shengzhe Hong ◽  
Fengli Jiao ◽  
Changyuan Liu ◽  
...  
Keyword(s):  
Winter Wheat ◽  
North China Plain ◽  
North China ◽  
Water Productivity ◽  
Conventional Tillage ◽  
No Tillage ◽  
Wheat Genotypes ◽  
The North ◽  
The North China Plain ◽  
Cropping Seasons

Uneven distribution of precipitation and overexploitation of groundwater resources threatens the sustainability of agriculture in the North China Plain. Adoption of water deficit-tolerant winter wheat genotypes coupled with timely, adequate farming practice is crucial to enhance sustainable crop production and water productivity in the region. The present study aimed to evaluate water consumption patterns and water productivity of two winter wheat genotypes (Tainong-18 and Jimai-22), under no-tillage or conventional tillage, over a period of four consecutive cropping seasons. Under no-tillage, Tainong-18 showed the lowest soil moisture consumption before sowing in the 30–110 cm soil profile. Jimai-22 under conventional tillage and Tainong-18 under no-tillage showed the highest and lowest evapotranspiration across cropping seasons, respectively. Compared with conventional tillage, no-tillage reduced grain yield and water productivity of winter wheat, and the difference between them increased for grain yield (6.79, 11.99, 14.78, and 15.73%) and water productivity (0.99, 8.14, 12.18, and 13.30%) over the 2015–2016, 2016–2017, 2017–2018, and 2018–2019 cropping seasons, respectively. In contrast, Tainong-18 showed lower evapotranspiration and increased grain yield and water productivity compared with Jimai-22. Further, Tainong-18 showed a compensatory effect on the reduction of water productivity under no-tillage, compared with Jimai-22. Our conclusions indicate that the combination of no-tillage and water-efficient winter wheat genotypes is an effective strategy to offset the reduction in water productivity caused by no-tillage and thus maximise water productivity in the North China Plain.  

scholarly journals Carbon emission and water use efficiency response to tillage methods and planting patterns of winter wheat in the North China Plain

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9912
Author(s):  
Yuzhao Ma ◽  
Quanqi Li
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Carbon Emissions ◽  
North China Plain ◽  
North China ◽  
No Tillage ◽  
The North ◽  
The North China Plain ◽  
Use Efficiency ◽  
Precision Planting

Background Implementing sustainable farming practices for winter wheat (Triticum aestivum L.) in the North China Plain may be a way to reduce carbon emissions. No tillage generally results in less net CO2 loss from farmland, but no tillage also reduces the grain yield and water use efficiency (WUE) of winter wheat. Wide-precision planting of winter wheat may enhance the grain yield and WUE; however, it is not known precisely how tillage and planting patterns affect CO2 exchange, grain yield and WUE. Methods In this study, two tillage methods (conventional tillage, T and no tillage, NT) and two planting patterns (conventional planting, C and wide-precision planting, W) were used in two consecutive winter wheat growing seasons. Results Compared with the T treatments, the NT treatments had significantly lower cumulative net CO2 emissions in 2015–2016 and 2016–2017 (30.8 and 21.3%, respectively), and had lower grain yields (9.0 and 9.4%, respectively) and WUE (6.0 and 7.2%, respectively). The W treatments had a compensating effect on grain yield failure and reduced cumulative net CO2 emissions more than C treatments, thereby increasing WUE, reducing carbon emissions per unit water consumption, and increasing the yield carbon utilization efficiency (YCUE). The lowest cumulative CO2 emissions and highest YCUE were observed for NT with W treatment. Results from this analogous tillage experiment indicated that NT and W farming practices provide an option for reducing carbon emissions and enhancing WUE and YCUE for sustainable winter wheat development.

THE RATIO OF CO2–C EMISSION TO GRAIN YIELD IN SUMMER MAIZE CULTIVATED UNDER DIFFERENT SOIL TILLAGE AND STRAW APPLICATION CONDITIONS

2016 ◽  
Vol 53 (1) ◽  
pp. 118-130 ◽  
Author(s):  
HUI FANG HAN ◽  
TANG YUAN NING ◽  
ZENG JIA LI ◽  
HONG MING CAO
Keyword(s):  
Grain Yield ◽  
North China Plain ◽  
North China ◽  
Emission Rate ◽  
Conventional Tillage ◽  
No Tillage ◽  
Summer Maize ◽  
The North ◽  
The North China Plain ◽  
Straw Application

SUMMARYThe relationship between climate, crop growth and crop yield is complicated. This study aimed to determine the ratio of CO2–C emission to grain yield, the field treatments were initiated in 2003, but the measurements for this analysis were collected during the summer maize-growing seasons of 2011 and 2012 in the North China Plain. The experiment showed that conventional tillage with straw application significantly increased grain yield and the ratio of CO2–C emission to grain yield of summer maize. The mean soil CO2–C emission rate with no tillage was significantly lower than that when conventional tillage was used; however, straw application significantly increased the soil CO2–C emission rate, irrespective of whether tillage was performed or not. This was mainly because straw application changed the soil total porosity and organic carbon content. In conclusion, the results of this study support the hypothesis that the ratio of CO2–C emission to grain yield in the North China Plain can be increased by straw application, whereas no tillage decreases this ratio.

FIELD EVALUATION ON WATER PRODUCTIVITY OF WINTER WHEAT UNDER SPRINKLER OR SURFACE IRRIGATION IN THE NORTH CHINA PLAIN

2013 ◽  
Vol 62 (1) ◽  
pp. 37-49 ◽  
Author(s):  
Hai-Jun Liu ◽  
Yaohu Kang ◽  
Su-Mei Yao ◽  
Ze-Qiang Sun ◽  
Shi-Ping Liu ◽  
...  
Keyword(s):  
Winter Wheat ◽  
North China Plain ◽  
North China ◽  
Water Productivity ◽  
Field Evaluation ◽  
Surface Irrigation ◽  
The North ◽  
The North China Plain

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
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