نتایج جستجو برای: wheat yields

تعداد نتایج: 150184  

Journal: :Kansas Agricultural Experiment Station Research Reports 2021

A limited irrigation study involving four cropping systems and evaluating crop rotations was initiated at the Southwest Research-Extension Center near Tribune, KS, in 2012. The were two annual (continuous corn continuous grain sorghum) 2-year (corn-grain sorghum corn-winter wheat). In 2020, yields similar for all rotations, although averaged across past 8 years, greater following wheat than cor...

Journal: :کشاورزی (منتشر نمی شود) 0
علی رضا توکلی عضو هیات علمی موسسه تحقیقات کشاورزی دیم مراغه

in rainfed areas of iran, cereal yields are low, variable and mainly as a result of inadequate and erratic seasonal rainfall and associated management factor, such as late sowing date (or late crop germination). in order to investigate the effects of single irrigation and nitrogen on bread wheat (triticum aestivum l. var. sabalan) a field experiment was conducted as split plot arranged in a ran...

Journal: :Kansas Agricultural Experiment Station Research Reports 2018

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
W L Chameides H Yu S C Liu M Bergin X Zhou L Mearns G Wang C S Kiang R D Saylor C Luo Y Huang A Steiner F Giorgi

The effect of atmospheric aerosols and regional haze from air pollution on the yields of rice and winter wheat grown in China is assessed. The assessment is based on estimates of aerosol optical depths over China, the effect of these optical depths on the solar irradiance reaching the earth's surface, and the response of rice and winter wheat grown in Nanjing to the change in solar irradiance. ...

2000
Francesco N. Tubiello Marcello Donatelli C. Rosenzweig Claudio O. Stockle

The potential effects of future climate change were investigated, corresponding to a doubling of atmospheric CO2 from 350 to 700 ppm, on agricultural production of four different cropping systems at two Italian locations, Modena and Foggia. Climate change scenarios, derived from two general circulation models (GCMs), were used as weather input to a soil-plant growth simulator, CropSyst. This mo...

سیدی, محسن, حمزه‌ئی , جواد ,

In order to determine the best intercropping combination of wheat (Triticum aestivum) and rapeseed (Brassica napus) based on total yield and landuse efficiency, an experiment was conducted during 2010-2011 growing season at Agricultural Research Farm of Faculty of Agriculture, Bu-Ali Sina University. This experiment used randomized complete blocks design and three replications. Treatments inclu...

2017
David C. Nielsen Merle F. Vigil Joseph G. Benjamin

No-till dryland winter wheat (Triticum aestivum L.)-fallow systems in the central Great Plains have more water available for crop production than the traditional conventionally tilled winter wheat-fallow systems because of greater precipitation storage efficiency. That additional water is used most efficiently when a crop is present to transpire the water, and crop yields respond positively to ...

2002
Andrew M. McGuire Dennis C. Bryant

Long-term use of fallow in dryland wheat (Triticum aestivum L.) systems can increase erosion and decrease soil fertility. One possible solution is to grow a green manure crop during the fallow period. To evaluate the short-term effects of substituting a winter legume green manure for fallow in a 2-vr wheat rotation, a series of experiments were conducted in the Sacramento Valley of California f...

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