Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 49 for “"nitrogen management"”.
-
Ground Sensor Based Variable Rate Nitrogen Management
… imaging sensor with a variable-rate nitrogen application system, can provide the fundamental means for performing site-specific variable-rate nitrogen side-dressing applications. Using the estimated SPAD values to support sensor-based variable rate nitrogen application at specific …
-
Assessment of Vineyard Nitrogen Management upon Grape Chemistry
… to vines and grape musts which are deficient in nitrogen (N). A must that is deficient in yeast assimilable nitrogen (YAN) can lead to the production of off aromas and stuck or sluggish fermentations. It has also been suggested that musts with limited amino nitrogen sources can result in wines …
-
Nitrogen Management and Weed Suppression in Organic Transition
… were: 1) to quantify the amount of supplemental nitrogen (N) to maximize organic broccoli (Brassica olearcea var. italica) on transition soils, 2) to evaluate the ability of leguminous cover crops lablab (Dolichos lablab L.), soybean (Glycine max L.), sunn hemp (Crotalria juncea L.) and a sunn …
-
Nitrogen Management in No-till Winter Wheat Production Systems
… Plain. Little data are available evaluating N management strategies, optimum N rate prediction methods, or potential NO3 leaching under no-till wheat in soils and climate similar to the mid-Atlantic region. The objectives of our research were: (1) to determine economic optimum N fertilization …
-
Evaluation of Nitrogen Management Schemes in Cover Cropped Vineyards
… in Eastern vineyards, many vineyards experience nitrogen (N) deficiencies in both the vegetative vine tissue and yeast assimilable nitrogen (YAN) in the juice. Soil applications of calcium nitrate and foliar applications of urea were assessed as a means of vineyard N amelioration at cover cropped …
-
Investigation of a Commercial Product (BiOWiSH™) for Nitrogen Management
… Commercial Product (BiOWiSH<sup>TM</sup>) for Nitrogen Management</strong></p> <p><strong>Eva Lee</strong></p> <p>BiOWiSH–Aqua, which has the capability of treating nitrogen from wastewater through bioaugmentation, is a commercial product consisting of a blend of microorganisms developed by …
-
Value of Cultural Practices for Improving Nitrogen Management in Corn
… (Zea mays L.) is highly dependent on fertilizer nitrogen (N) use. The efficiency of fertilizer N use and the capacity of the soil to supply N are the two main components determining the corn N requirement. The cropping management system can also affect N use efficiency and soil N supply. A better …
-
Irrigation and nitrogen management of soybean in highly productive soils
… productive Illinois soils and use of fertilizer nitrogen (N) to supplement soybean when mineralized soil N and biologically fixed N may be insufficient. Three studies on productive soil in Urbana, IL over six years (2008, 2009-2010, 2012-2014) tested irrigation’s impact seeding rate or seed …
-
An Integrated Approach for Nitrogen Management in Upland Cotton Production
Nitrogen (N) fertilizer application constitutes a major portion of farmers' cost of production since N is the most applied nutrient in U.S. cotton production. Despite this, N uptake and use efficiency (NUE) in cotton remains below 50%, which presents challenges of environmental quality. Studies …
-
Balancing water quality, nitrogen management, and corn production goals in Illinois
Nitrogen (N) fertilizer inputs are required to maintain corn production in high-yielding cropping systems across much of the U.S. Midwest. However, applied N can also increase N losses through nitrate-nitrogen (NO3-N) leaching and nitrous oxide (N2O) emissions, negatively impacting water and air …
-
Soil testing and plant analysis to optimize nitrogen management in manured cornfields
… as a method of recycling plant available nitrogen (N) within agricultural systems, but there is great need to improve the efficiency of this recycling. Soil testing and plant analysis are widely accepted as important tools for managing plant nutrients, but guidelines for manure management …
-
Evaluation of nitrogen management strategies and policies using high-throughput crop simulations
Nitrogen (N) is an essential and often a limiting nutrient in corn production systems. Fertilization with N is critical to achieving high yields and quality. However, because of N's highly mobile nature in the soil, the unpredictability of weather, and the complex interactions between weather, …
-
Forage Utilization and Nitrogen Management of Tall Fescue Stockpiled for Winter Grazing
… been underutilized. These studies evaluated how nitrogen rate and source can affect yield and nutritional quality of fall stockpiled tall fescue, and how grazing methods impact weight gains, forage utilization, and forage nutritive value. The first study evaluated the impact of N rate and source …
-
Cover Cropping: A Strategy to Healthy Soil and Nitrogen Management in Corn
Economic and environmental concerns surrounding nitrogen (N) have motivated efforts to improve estimates of plant available N in soil in order to improve crop N management decisions. Cover crops have been recognized as an effective tool for protecting soil and enhancing soil function including N …
-
Evaluation of Nitrogen Management Schemes upon Vine Performance in Cover Cropped Vineyards
… in Eastern vineyards, many vineyards experience nitrogen (N) deficiencies in both the vegetative vine tissue and yeast assimilable nitrogen (YAN) in the juice. Soil applications of calcium nitrate and foliar applications of urea were assessed as a means of vineyard N amelioration at cover cropped …
-
The effects of irrigation and nitrogen management on water use of tall fescue
… severely-stressed to well-watered turfgrass. Nitrogen fertility treatments of 0, 1.2 and 2.4 Kg ha-1 were imposed to reflect zero, low and high N fertility. The results of the study showed that counter to current cultural management techniques, which emphasize daily watering, tall fescue …
-
Site-Specific In-Season Nitrogen Management Using Drone Multispectral Imagery And Proximal Sensing
… of in-season remote sensing-based variable rate nitrogen (VRN) to detect nitrogen stress in rainfed corn in Minnesota and its ability to provide timely information to correct corn N deficiency and therefore improve both the agronomic and environmental efficiency of nitrogen fertilizer. While the …
-
A quantitative evaluation of microbial interventions and biostimulant strategies in agricultural nitrogen management
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
-
Quantifying soil ecosystem services across different spatial scales to improve agricultural nitrogen management
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-05-01
Page 1 of 3