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| Filter results3 paper(s) found. |
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1. Remote Sensing of Corn N Status with Active SensorsDetermining in-season corn (Zea mays L.) nitrogen (N) variability has been a research focus of agronomists for quite some time. One of the methods currently available to determine N variability in corn is remote sensing. Studies have shown that remotely sensed imagery can detect N variability in corn. However, this method can have some limitations, such as the timeliness in which this imagery can be acquired. Hand-held active remote sensing devices may overcome these limitations.... D. Westfall, R. Khosla, T. Shaver |
2. Economics of Fertilization Under Site-specific Management ZonesSite-specific management of crop fields using variable rate application of inputs to manage in-field variability has now been around for over 15 years. However, the degree to which site-specific management strategies increase farm profitability is not well established. The objectives of this study were: to compare uniform and variable-rate Nitrogen (N) management strategies across productivity level site-specific management zones and to identify the most profitable N management strategy. This... R. Khosla, D. Westfall, W. Frasier, B. Koch |
3. Seasonal Water Distribution in a Drip-irrigated Cabernet Sauvignon VineyardSeasonal irrigation is vital to sustainable production of wine grapes in inland Washington. Without supplemental irrigation there is not enough rainfall during summer months to sustain plant health and productivity. Our 5 year project evaluates the effects of several regulated deficit irrigation treatments on soil water distribution throughout the growing season and the subsequent effects on yield and fruit quality in both Cabernet Sauvignon (CS) and Concord grapes; with a focus on wine grape... J. Davenport, J. Stout |