Winter Wheat Production on the North Central Canadian Prairies: Potential Quality Classes 1

Crop Science ◽  
1984 ◽  
Vol 24 (5) ◽  
pp. 873-876 ◽  
Author(s):  
D. B. Fowler ◽  
I. A. Roche
Keyword(s):  
Winter Wheat ◽  
Canadian Prairies ◽  
North Central ◽  
Wheat Production ◽  
The North

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 Spatio-Temporal Pattern Change of Winter Wheat Production and Its Implications in the North China Plain

2019 ◽  
Vol 11 (11) ◽  
pp. 3028 ◽  
Author(s):  
Zemin Zhang ◽  
Changhe Lu
Keyword(s):  
Winter Wheat ◽  
North China Plain ◽  
North China ◽  
Total Production ◽  
Wheat Production ◽  
Yield Increase ◽  
The North ◽  
The North China Plain ◽  
Production Increase ◽  
Sown Area

The North China Plain (NCP) is the most important winter wheat production region and an area of water shortage in China. The stability of winter wheat (T. aestivum L.) production in spatial pattern and the sustainability of water resources have been a major policy concern in China. This study explored the barycenter shift and change trends of wheat total production during 1998–2015, using methods of barycenter model, Sen’s slope, and Mann Kendall test, and analyzed the influence of external factors and the response of water resources. Results indicated that the barycenter of wheat production moved southwards by 115.16 km during 1998–2015, with an average speed of 6.77 km/year. For the entire NCP, the total production showed phased changes during the study period: It decreased during 1998–2003, and then continuously increased during 2004–2015. Of the wheat production increase in the NCP, yield increase and sown area expansion averagely contributed 64.5% and 35.5%, respectively, and the contribution proportion of yield increase continuously increased since 2003. At county level, total wheat production showed a significant increase and decrease trend in 87 and 29 counties, mainly distributed in the southern and northern NCP, respectively. The increase of total production at county level was mainly contributed by yield growth in the southern NCP, while the decrease in the north was due to the reduction of sown area to great extent. The southward shift was jointly resulted by the spatial variation of input factors, benefit, and water prices. These spatial pattern changes alleviated the water pressure in the north region to some extent, in the case of ensuring the production increase of winter wheat. Therefore, the current spatial shift should be continuously promoted in the future.

Cropping systems for the Southern Great Plains of the United States as influenced by federal policy

2006 ◽  
Vol 21 (2) ◽  
pp. 77-83 ◽  
Author(s):  
Jon T. Biermacher ◽  
Francis M. Epplin ◽  
Kent R. Keim
Keyword(s):  
Winter Wheat ◽  
Federal Policy ◽  
Cropping Systems ◽  
The United States ◽  
Weed Species ◽  
North Central ◽  
The North ◽  
Central District ◽  
Fair Act ◽  
The Impact

The majority of cropland in the rain-fed region of the North Central District of Oklahoma in the US is seeded with winter wheat (Triticum aestivum) and most of it is in continuous wheat production. When annual crops are grown in monocultures, weed species and disease agents may become established and expensive to control. For many years prior to 1996, federal policy provided incentives for District producers to grow wheat and disincentives to diversify. In 1996, the Federal Agriculture Improvement and Reform (FAIR) Act (Freedom to Farm Act) was instituted, followed by the Farm Security and Rural Investment Act (FSRIA) in 2002. The objective of this study was to determine the impact of FAIR and FSRIA programs on crop diversity in the North Central District of Oklahoma. The economics of three systems, monoculture continuous winter wheat, continuous soybean (Glycine max) and a soybean–winter wheat–soybean rotation, were compared using cash market prices (CASH), CASH plus the effective loan deficiency payments (a yield-dependent subsidy) of the FAIR Act of 1996, and CASH plus the effective loan deficiency payments of the FSRIA of 2002. We found that the loan deficiency payment structure associated with FAIR provided a non-market incentive that favored soybean. However, under provisions of the 2002 FSRIA, the incentive for soybean was adjusted, resulting in greater expected returns for continuous wheat. Due to erratic weather, soybean may not be a good alternative for the region. Research is needed to identify crops that will fit in a rotation with wheat.

Critical Nitrogen Dilution Curve for Optimizing Nitrogen Management of Winter Wheat Production in the North China Plain

2012 ◽  
Vol 104 (2) ◽  
pp. 523-529 ◽  
Author(s):  
Shanchao Yue ◽  
Qingfeng Meng ◽  
Rongfang Zhao ◽  
Fei Li ◽  
Xinping Chen ◽  
...  
Keyword(s):  
Winter Wheat ◽  
North China Plain ◽  
North China ◽  
Nitrogen Management ◽  
Dilution Curve ◽  
Wheat Production ◽  
The North ◽  
The North China Plain ◽  
Nitrogen Dilution

INFLUENCE OF DATE OF SEEDING ON YIELD AND OTHER AGRONOMIC CHARACTERS OF WINTER WHEAT AND RYE GROWN IN SASKATCHEWAN

1983 ◽  
Vol 63 (1) ◽  
pp. 109-113 ◽  
Author(s):  
D. B. FOWLER
Keyword(s):  
Winter Wheat ◽  
Kernel Weight ◽  
Yield Reduction ◽  
Winter Rye ◽  
Significant Trial ◽  
North Central ◽  
The North ◽  
Seeding Date ◽  
Reduced Height ◽  
Optimum Period

Four wheat and two rye cultivars were seeded at 2-wk intervals between 1 Aug. and 15 Oct. in five summer-fallow and two stubble-seeded trials at three locations in the north-central part of the agricultural area of Saskatchewan. Averaged over 3 yr, the optimum dates for planting both winter wheat and rye were between 15 Aug. and 1 Sept. Seeding earlier than this usually resulted in reduced yield and lower 1000-kernel weight. Later seeding usually resulted in a yield reduction, delayed heading, later maturity and reduced hectoliter weight. Reduced height in rye and reduced 1000-kernel weight in wheat were also associated with delayed seeding dates. However, exceptions to these generalizations did occur with the result that a significant trial by date of seeding interaction was recorded for all characters measured. For the optimum period for seeding, rye cultivars were higher yielding, earlier heading and maturing, taller and had lower 1000-kernel and hectoliter weight than winter wheat cultivars.Key words: Winter wheat, winter rye, yield, seeding date, maturity

scholarly journals Distribution of Phoma sclerotioides on Alfalfa and Winter Wheat Crops in the North Central United States

Plant Disease ◽  
2007 ◽  
Vol 91 (5) ◽  
pp. 551-558 ◽  
Author(s):  
J. E. Larsen ◽  
C. R. Hollingsworth ◽  
J. Flor ◽  
M. R. Dornbusch ◽  
N. L. Simpson ◽  
...  
Keyword(s):  
United States ◽  
Winter Wheat ◽  
North Central ◽  
The North ◽  
Central United States ◽  
Increased Sensitivity ◽  
Polymerase Chain ◽  
Northern United States ◽  
Phoma Sclerotioides ◽  
Brown Root Rot

Brown root rot of alfalfa (Medicago sativa), caused by Phoma sclerotioides, has been reported in several states in the northern United States and in western Canada. A survey was conducted to determine the distribution of the fungus in Minnesota and Wisconsin. Isolates of the pathogen were recovered from roots of alfalfa, winter wheat, and perennial ryegrass plants. The internal transcribed spacer (ITS) 1, 5.8S, and ITS2 of the rDNA of the isolates from alfalfa and wheat were identical and matched the sequences of a P. sclerotioides isolate from Wyoming. The fungus was found to be widespread in both states and was detected in roots of alfalfa plants from 17 counties in Minnesota and 14 counties in Wisconsin using polymerase chain reaction (PCR)-based assays. A real-time PCR assay was developed that increased sensitivity of detecting the pathogen from plant tissues and soil. The isolates from alfalfa caused disease on inoculated winter wheat plants. Although the fungus was previously found associated with roots of diseased cereal and turfgrass plants, this is the first demonstration of pathogenicity of P. sclerotioides on wheat.

Regional Evaluation of Critical Nitrogen Concentrations in Winter Wheat Production of the North China Plain

2009 ◽  
Vol 101 (1) ◽  
pp. 159-166 ◽  
Author(s):  
Zhenling Cui ◽  
Fusuo Zhang ◽  
Zhengxia Dou ◽  
Miao Yuxin ◽  
Qinping Sun ◽  
...  
Keyword(s):  
Winter Wheat ◽  
North China Plain ◽  
North China ◽  
Wheat Production ◽  
The North ◽  
The North China Plain ◽  
Nitrogen Concentrations

scholarly journals Assessment of Genotypes and Management Strategies to Improve Resilience of Winter Wheat Production

2020 ◽  
Vol 12 (4) ◽  
pp. 1474
Author(s):  
Chunlei Wang ◽  
Liping Feng ◽  
Lu Wu ◽  
Chen Cheng ◽  
Yizhuo Li ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Management Strategies ◽  
Sowing Date ◽  
Growth Duration ◽  
Wheat Growth ◽  
Wheat Production ◽  
The North ◽  
Sowing Dates ◽  
Main Factor

Climate is a main factor that influences the winter wheat production. Changing the crop cultivars and adjusting the sowing dates are used as strategies to adapt to climate change. First, we evaluated the simulation ability of the Decision Support System for Agro-technology Transfer (DSSAT) CERES wheat model based on the experimental data with varied sowing dates and cultivars. Second, we designed optimal cultivars in three different environmental conditions with the highest grain yield in the North China Plain (NCP) based on model sensitivity analysis. Furthermore, we optimized the sowing dates for three sites with the above-derived cultivar parameters. The results showed that the DSSAT–CERES wheat model was suitable for winter wheat simulation after calibration and validation with a Normalized Root Mean Square Error (NRMSE) between 0.9% and 9.5% for phenology, 6.8% and 17.8% for above ground biomass, and 4.6% and 9.7% for grain yield. The optimal cultivars significantly prolonged the wheat growth duration by 14.1, 27.5, and 24.4 days at the Shangzhuang (SZ), Xingtai (XT), and Zhumadian (ZMD) sites compared with current cultivars, respectively. The vegetative growth duration (from sowing to anthesis) was prolonged 18.4 and 12.2 days at the XT and ZMD sites significantly, while shortened 0.81 days at the SZ site. The grain yield could be potentially improved by 29.5%, 86.8%, and 34.6% at the SZ, XT, and ZMD sites using the optimal cultivars, respectively. Similarly, the improvement of aboveground biomass at three sites was 5.5%, 47.1%, and 12.7%, respectively. Based on the guaranteed rate and analysis of variance, we recommended a later sowing date (from 15 September to 20 October) at the SZ and ZMD sites, and 15 September to 15 October at the XT site. In addition, the methodology of this study could be expanded to other regions and possibly to other crops.

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