Combined effects of ridge–furrow ratio and urea type on grain yield and water productivity of rainfed winter wheat on the Loess Plateau of China

2021 ◽  
pp. 107340
Author(s):  
Shengcai Qiang ◽  
Yan Zhang ◽  
Junliang Fan ◽  
Fucang Zhang ◽  
Min Sun ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Loess Plateau ◽  
Water Productivity ◽  
Combined Effects ◽  
The Loess Plateau

Yield, water productivity and economic return of dryland wheat in the Loess Plateau in response to conservation tillage practices

2017 ◽  
Vol 155 (8) ◽  
pp. 1272-1286
Author(s):  
Z. LI ◽  
Q. ZHANG ◽  
Q. YANG ◽  
X. YANG ◽  
J. LI ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Loess Plateau ◽  
Conservation Tillage ◽  
Water Productivity ◽  
Conventional Tillage ◽  
The Loess Plateau ◽  
Tillage Practices ◽  
Stubble Retention ◽  
No Till

SUMMARYWinter wheat (Triticum aestivum L.) production on the Loess Plateau in China has been threatened by water scarcity and climate change during the last decade. Sustainable crop production in this region requires managerial practices that can provide high yield and high water productivity (WP). A 7-year (2001–2008) study at the Loess Plateau Research Station of Lanzhou University investigated the effects of various conservation tillage practices on grain yield, soil water content (SWC), WP and economic return of winter wheat production. Tillage treatments included: conventional tillage (T), conventional tillage followed by stubble retention (TS), no-till (NT) and no-till followed by stubble retention (NTS). Over the entire experimental period, grain yield and WP of winter wheat ranged from 1279 to 4894 kg/ha and 0·32 to 2·41 kg/m3, respectively. Both were significantly affected by tillage treatment and year, while SWC was only affected by year. Grain yield and WP in TS was increased by 4·9, 12·1, 0·9% and 13·7, 20·4 and 3·9% compared with NTS, NT and T, respectively, over seven growing seasons. Additionally, a multiple linear regression analysis indicated that grain yield is mainly limited by SWC during planting. Despite its lower grain yield, the NTS treatment increased economic benefit by US$ 328, US$ 23 and US$ 87/ha compared with TS, NT and T, respectively. Therefore, it is suggested that increasing soil water storage at wheat sowing time and encouraging the use of NTS could improve economic returns in this region.

Improving Winter Wheat Grain Yield and Water Use Efficiency through Fertilization and Mulch in the Loess Plateau

2015 ◽  
Vol 107 (6) ◽  
pp. 2059-2068 ◽  
Author(s):  
Yanlong Chen ◽  
Ting Liu ◽  
Xiaohong Tian ◽  
Xiaofeng Wang ◽  
Huilin Chen ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Loess Plateau ◽  
Wheat Grain ◽  
The Loess Plateau ◽  
Use Efficiency

scholarly journals Effects of film mulching regime on soil water status and grain yield of rain-fed winter wheat on the Loess Plateau of China

2017 ◽  
Vol 16 (11) ◽  
pp. 2612-2622 ◽  
Author(s):  
Nai-wen XUE ◽  
Jian-fu XUE ◽  
Zhen-ping YANG ◽  
Min SUN ◽  
Ai-xia REN ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Soil Water ◽  
Loess Plateau ◽  
Water Status ◽  
The Loess Plateau ◽  
Soil Water Status ◽  
Film Mulching

scholarly journals The Proportion of Superior Grains and the Sink Strength are the Main Yield Contributors in Modern Winter Wheat Varieties Grown in the Loess Plateau of China

Agronomy ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 612 ◽  
Author(s):  
Chen ◽  
Sun ◽  
Zhang ◽  
Palta ◽  
Deng
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Plant Height ◽  
Loess Plateau ◽  
Aboveground Biomass ◽  
Yield Components ◽  
Wheat Cultivars ◽  
The Loess Plateau ◽  
Winter Wheat Cultivars ◽  
Cropping Seasons

Understanding the changes in phenotype resulting from the selection pressure and agronomic adaptation of grain yield provide an indication of the pathways for future increases in grain yield. Six dry land representative winter wheat cultivars (Triticum aestivum L.) released from 1942 to 2004 in the Loess Plateau of China were investigated to determine how the yield components of winter wheat were associated with grain yield at the Changwu Agricultural Research Station during the 2011–2012 and 2012–2013 seasons, using a completely randomized block design with three replicates. Plant height, aboveground biomass, grain yield, and yield components were measured, together with the traits of superior and inferior grains and the pre-anthesis stored dry matter remobilized to the grain was determined. In the relatively wet 2011–2012 season, there was a significant increase in grain yield and aboveground biomass with the year of release, but not in the dry 2012–2013 season. The harvest index (HI) and average grain weight (AGW) increased significantly with the year of release in both cropping seasons. HI and AGW are likely potential traits for improving grain yield of winter wheat in the Loess Plateau. The increase in HI mainly resulted from the decrease in plant height, and the increase in the use of pre-anthesis stored assimilates for grain filling. The increase in AGW mainly resulted from the increase in the proportion of superior grain (SG) and the decrease in the proportion of inferior grain (IG) in the whole spike in both cropping seasons. Depending on the climatic conditions, the different winter wheat cultivars showed different ability to use pre-anthesis stored assimilates. Modern wheat cultivars had higher yield under different rainfall conditions, and high ability to use pre-anthesis stored assimilates to fill the grain than earlier released cultivars. Both, the increase in sink capacity and source availability, should be considered as a strategy for increasing future grain yield in Loess Plateau of China.

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