WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Monday, October 22, 2018

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463. Anon.. 1989. The winds of change.. Agrichemical Age, November 1989.
Adoption of chem fallow has been slow in the northern Plains, being used only on about 20% of the acres. It is one of the best practices to prevent wind erosion in the region. Roundup with 2,4-D and atrazine has been the standard treatment. Now Command is labelled for this use, and Command/atrazine is another choice. Carryover problems with atrazine can be avoided if rates are kept below 1/2 lb/ac.

7994. Stewart, V.R., L.S> Prestbye, T.K. Keener, and L.E. Welty. 1986. Weed control in sod-seeded alfalfa.. Montana AgResearch 3(1):21-24.

8001. Stewart, V.R., L.E. Welty, and P.F. Hensleigh. 1979. Evaluation of glyphosate in combination with various herbicides for sod-seeding.. West. Soc. Weed Sci. Abstr. p. 110.

9884. DeVault, G.. 1987. Whipping weeds, naturally.. The New Farm, May/June 1987, p. 36-37..
Instead of chemicals, a 3,000 acre dryland grain farm in Montana, uses crop rotation and timely cultivation to control weeds. After spring rains, they go over the fields with a chisel plow and rod weeder. At planting time, minimal weeding is done again with chisel-rod weeder. They summer fallow and alternate wheat and feed grains every third year and seed clover with spring-seeded grains. They have also reduced row spacing from 10 inches to 7 inches.

9894. Cramer, C.. 1987. Water saving 'weed' replaces chem-fallow.. The New Farm, Sept/Oct 1987, p. 28-29..
Black medic is successfully being used in Montana as a reseeding annual legume in dryland rotations. The medic is protecting the soil from erosion, improving soil structure and water-holding capacity, disrupting weed and disease cycles, and reducing saline seep. Becauce medic is a shallow-rooted legume, it is supplying the soil with added nitrogen but only drawing water from the top 2 feet of the soil profile. This moisture is replaced by snow melt. The medic can also be a profitable hay crop.

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