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Archive | December, 2013

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Synthetic Nitrogen Lingers for Decades

Nitrogen fertilizer applied to crops lingers in the soil and leaks out as nitrate for decades towards groundwater — “much longer than previously thought,” scientists in France and at the University of Calgary say in a study. Thirty years after synthetic nitrogen (N) fertilizer had been applied to crops in 1982, about 15 percent of […]

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Vetch Cover Crop Recommended for Organic Zucchini

In a new study, the popular cover crop vetch (Vicia sativa L.) was used in a two-year field experiment designed to determine the effects on organic zucchini yield and quality of vetch residue management strategies incorporating green manure using a roller-crimper (RC) and organic fertilizers. To allow for timely crop rotation in organic farming, the […]

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High-Tunnel Strawberry Production

At a time when Arkansas-grown summer strawberries are a happy memory, Elena Garcia and her team are just gearing up for their growing season. Garcia, a professor and extension fruit and nut specialist for the University of Arkansas System Division of Agriculture, is studying the use of high tunnels for winter and early spring strawberry […]