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Ability of cotton (Gossypium hirsutum L.) to recover from early season nitrogen stress, and maize (Zea mays L.) grain yield response to distance nitrogen is placed away from the row
(2011-12)
Scope and Method of Study: For chapter one, a field experiment was conducted to evaluate cotton's ability to recover from earlier season N stress. The treatments included 4 rates of preplant (0, 33, 67 and 101 kg N ha-1) ...
In Season Prediction of Nitrogen Use Efficiency and Grain Protein in Winter Wheat (Triticum Aestivum L.)
(Oklahoma State University, 2012-05-01)
The algorithm currently used at Oklahoma State University for mid-season fertilizer nitrogen (N) recommendations utilizes an assumed nitrogen use efficiency (NUE) of 0.5. The recommended N rate is calculated by subtracting ...
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 ...
Improving nitrogen use efficiency, soil properties and grain yield of maize (Zea mays L.) and winter wheat (Triticum aestivum L.) with biochar and no-tillage practice
(2020-12)
The first study (chapter 1) of this dissertation was conducted to establish possible synergies in applying inorganic fertilizer nitrogen (N) in combination with biochar (NBC) and the subsequent role in optimizing maize ...