Electrical Conductivity Models of the Crust and Mantle by J. Hermance

By J. Hermance

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Dan’s father used to drive around Missouri on weekends, seeking quality pecan trees to improve their stock. It took close to 20 years before they achieved a viable nut harvest. But they will continue to reap good harvests for another 80. “The nice things about these trees is that they will produce while we just tend to them and amend the orchard as needed,” Shepherd says. org/publications/naf front investment. ” They grew wheat and soybeans for small returns that basically paid for their expenses.

By conHaving oats and hay in the mix decreases the trast, he generates a profit of $114 per acre. weed management by about $25 an acre in The Thompsons have not received governherbicide expenses. Manuring reduces their ment subsidies for years, yet their diverse need for commercial fertilizer by another farm still supports two families without off$25 an acre per year. farm employment and without organic premiums. Thompson has taught himself how to repair farm equipment, a valuable skill that has “My neighbors are seeing a per-acre loss,” saved him more than one crop.

Focal Point of Operation — Rotation and diversification Thompson developed a five-year rotation that includes corn, beans, corn, oats and hay. He grows the row crops on four- to eight-inch ridges. This “ridge-till” method leaves the soil undisturbed from harvest to planting. Right after harvest, Thompson drills a cover crop of rye onto the tops of the ridges. org/publications/naf The system does a good job on weed control. Although their farm is not certified organic, Thompson only has applied herbicides once in the last 20 years and has never used an insecticide since he switched to a longer crop rotation.

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