WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Friday, February 23, 2018

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2918. Idaho Agr. Expt. Sta.. 1950. Annual Report. Id Agr. Expt. Sta. Bull. #280.
T: hay yields, economics

8588. U.S.D.A.. 1948. Grass: The Yearbook of Agriculture.. U.S. Govt. Printing Office, Washington, D.C..
This volume is dedicated to a "permanent agriculture" and focuses on the use of perennial grasses and legumes in cropping systems. In discussing the effects of grass on soil, it is stated that organic matter accumulation occurs somewhat slowly during the first few years until a good relationship is reached among the microscopic plants and animals, the higher plants, and the higher animals that live in the soil. Following the establishment of this favorable relationship, the rate of accumulation increases rapidly for many years and then slows again. In medium textured soils of well-balanced mineral composition, it is thought that the maximum content of organic matter will be attained in several hundred years. The book contains many tables listing common and species names, management needs, and characteristics of hundreds of grasses and legumes.

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