scholarly journals A note on nitrogen fertilizer application timing

1995 ◽  
Vol 19 (3) ◽  
pp. 182-191
Author(s):  
Huang Wen-Yuan ◽  
Noel D. Uri
Keyword(s):  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
Application Timing

scholarly journals Using Insurance to Enhance Nitrogen Fertilizer Application Timing to Reduce Nitrogen Losses

2002 ◽  
Vol 34 (1) ◽  
pp. 131-148 ◽  
Author(s):  
Wen-Yuan Huang
Keyword(s):  
Expected Utility ◽  
Nitrogen Fertilizer ◽  
Economic Benefit ◽  
Potential Benefit ◽  
Growing Season ◽  
Fertilizer Application ◽  
N Application ◽  
Application Timing ◽  
Adverse Weather ◽  
Risk Cost

AbstractNitrogen applied before planting is more vulnerable to loss to the environment than nitrogen applied during the growing season, but the growing season application can increase the risk of lower yields caused by adverse weather that prohibits farmers to complete N application. An expected utility framework is used to illustrate the potential economic benefit of insurance for a farmer to reduce this risk cost. An expected-value variance analysis is used to illustrate the potential benefit of insurance to Iowa corn growers who apply N fertilizer only during the growing season.

Enhancing Nitrogen Fertilizer Application Timing by Insurance

2000 ◽  
Vol 16 (1) ◽  
pp. 31-57 ◽  
Author(s):  
Wen-Yuan Huang ◽  
Richard G. Heifner ◽  
Harold Taylor ◽  
Noel D. Uri
Keyword(s):  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
Application Timing

Managing nitrogen fertility of irrigated soft white spring wheats for optimum quality

2006 ◽  
Vol 86 (2) ◽  
pp. 459-464 ◽  
Author(s):  
Mary J. Guttieri ◽  
Katherine O’Brien, Cecile Becker ◽  
Jeffrey C. Stark ◽  
Juliet Windes ◽  
Edward Souza
Keyword(s):  
Lactic Acid ◽  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
Quality Parameters ◽  
Yield Response ◽  
Retention Capacity ◽  
Application Timing ◽  
Soft White Spring Wheat ◽  
Flour Yield ◽  
Irrigated Wheat

Irrigated wheat growers often choose to apply only part of the crop’s nitrogen fertilizer requirement at planting to avoid over-fertilizing the crop at early stages of growth. Later in the growing season, producers will apply additional nitrogen fertilizer as needed to optimize production. This study evaluated effects of top-dress nitrogen fertilizer application timing and rate on the milling and baking quality of two soft white spring wheat cultivars produced in an irrigated environment when the pre-plant fertility rates were insufficient for optimal crop yield. Top-dress N increased lactic acid solvent retention capacity (SRC), a measure of gluten strength, of the resulting flour by increasing flour protein concentration. Although lactic acid SRC response and the grain yield response to top-dress fertilizer were unaffected by application timing, other quality parameters, including break flour yield, flour ash, and, in the case of the cultivar Alturas, sugar snap cookie diameter, were affected by application timing. Earlier timing of top-dress fertilization minimized the detrimental effects of the fertilizer application on break flour yield and flour ash concentration. Key words: Soft wheat, nitrogen, gluten, flour ash

Influence of a BactoFil microbiological preparation on the intensity of infection by Rhizoctonia solani and the effects on sugar beet yield and quality

2012 ◽  
pp. 102-109
Author(s):  
Suzana Kristek ◽  
Andrija Kristek ◽  
Dragana Kocevski ◽  
Antonija K. Jankovi ◽  
Dražen Juriši
Keyword(s):  
Sugar Beet ◽  
Rhizoctonia Solani ◽  
Nitrogen Fertilizer ◽  
Soil Analysis ◽  
Block Design ◽  
Sugar Content ◽  
Pathogenic Fungi ◽  
Fertilizer Application ◽  
Beet Root ◽  
Set Up

The experiment was set up on two types of the soil: Mollic Gleysols (FAO, 1998) and Eutric Cambisols where the presence of pathogenic fungi – sugar beet root decay agent – Rhizoctonia solani has been detected since 2005. In a two year study (2008, 2009), the experiment was set up by completely randomized block design in 4 repetitions and 16 different variants. Two beet varieties, Belinda, sensitive to pathogenic fungi R. solani, and Laetitia, tolerant to pathogenic fungi R. solani), were grown. The microbiological preparation BactoFil was applied in different amounts in autumn and spring. In addition, the nitrogen fertilizer application, based on the results of soil analysis, was varied. The following parameters were tested: amount of infected and decayed plants, root yield, sugar content, sugar in molasses and sugar yield. The best results were obtained by applying the microbiological preparation BactoFil, and by 30% reduced nitrogen fertilizer application. Preparation dosage and time of application depended on soil properties.

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