Browsing OSU Dissertations by Subject "winter wheat"
Now showing items 1-6 of 6
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Effect of topdress N rate applied based on growing degree days on winter wheat (Triticum aestivum L.) grain yield
(2019-12)The majority of in-season nutrient management decisions for numerous crops are based on subjective morphological scales. The objective of this study was to establish whether a numerical scale based on growing degree-days ... -
I. Evaluation of seed treatments and nitrogen on soybean nodulation and grain yield.
(2021-05)Soybeans (Glycine max) are known to form symbiotic relationships with soil microbes and conduct biological nitrogen fixation (BNF). However, only 50-60% of the crop's nitrogen (N) requirement is met through this process. ... -
Identification of optical spectral signatures for detecting cheat and ryegrass in winter wheat, and determination of optimum rate and growth stage of foliar applied phosphorus in corn
(2004-07)Site specific weed management requires the identification of crop and weed species in a mixture. Reflectance spectra were used for the detection of cheat and ryegrass in winter wheat under greenhouse conditions. The three ... -
Improving the drought risk assessment and preparedness for winter wheat farming in Oklahoma
(2022-07)Droughts pose a persistent threat to agriculture in the Southern Great Plains (SGP). Oklahoma is a major contributor to dryland winter wheat farming in the SGP, acrop that is highly susceptible to drought episodes. Modern ... -
Influence of nitrogen timing on winter wheat grain yield and evaluation of nutrient management on the stratification of soil parameters in no-till
(2021-12)Visual symptoms of nitrogen (N) deficiency is common in winter wheat fields. Whether it is due to unavailability of suitable application equipment or unfavorable application conditions, the crop may go a significant period ... -
Mapping of quantitative traits important to dual-purpose management of winter wheat
(2009-12)Scope and Method of Study: