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Brian P. Jones

Title Summary Date ID Author(s)
A Decision Tool to Compare the Profitability of Utilizing Poultry Litter or Commercial Fertilizer to Meet Soil Test Recommendations Mar 17, 2010 3003-1439
Effects of Twin-Row Spacing on Corn Silage Growth Development and Yield in the Shenandoah Valley Mar 18, 2010 3003-1440
Identifying Soybean Fields at Risk to Leaf-Feeding Insects


What is LAI? Leaf area index (LAI) is the ratio of leaf area to land area. Soybean requires LAI values of at least 3.5 to 4.0 by early to mid-reproductive developmental stages to achieve maximum yield for that year and environment. A soybean crop that does not achieve adequate LAI could be at risk to yield loss from insect leaf-feeders, whereas, fields with high (4+) LAI can sustain significant insect feeding with little to no effect on yield. This publication will aid producers in evaluating soybean fields at risk to yield reduction from leaf-feeding insects.

May 1, 2009 444-203
Making Replant Decisions for Slug Damaged Corn and Soybean Stands

Slugs cause significant economic injury to corn and soybean crops in Virginia every year. Symptoms of slug feeding will vary depending on the size or the growth stage of the crop, and the size of the slug. In corn, slug damage is typically limited to defoliation of emerging leaves.

May 14, 2009 2905-1293
Soil Test Note 5: Fertilizing With Manures Aug 19, 2009 452-705
Tools to More Efficiently Manage In-Season Corn Nitrogen Needs Sep 2, 2009 2909-1410