WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Wednesday, January 23, 2019


Browse on keywords: tillage microbial distribution

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Search results on 01/23/19

1549. Dawson, R.C., V.T. Dawson, and T.M. McCalla. 1948. Distribution of microorganisms in the soil as affected by plowing and subtilling crop residues.. NE Agr. Expt. Sta. Research Bull. 155.
Study in Nebraska on distribution of organisms in 0-1 and 1-6 inch depths. Top inch contained greater numbers where residues were subtilled, lower depth when residues were plowed. Effect usually disappeared 9 months after application. Microbial numbers varied with sampling date. Higher residue rates stimulated higher microbial numbers. No evidence of selective stimulation of specific microbial groups.

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