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Published in Soil Sci Soc Am J 28:554-557 (1964)
© 1964 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Wheat Stubble Management: I. Influence on Some Physical Properties of a Chernozem Soil1

Robert E. Ramig and Andrew P. Mazurak2

ABSTRACT

Four methods of wheat stubble management (burn and plow, plow, one-way disk, and subsurface-till) in an alternate wheat-fallow system on a Chernozem soil were studied for 12 years. Plots were split, with one-half of each plot receiving N fertilizer. Twelve years of subsurface-tilling or one-way disking substantially increased the geometric mean diameter of water-stable aggregrates and decreased the bulk density of the surface soil as compared with plowing or burning and plowing. The ratio of water entry, 10 minutes to 120 minutes, was substantially lower in wheat plots that had been subsurface-tilled or plowed than where the plots had been burned and plowed or one-way disked. Application of N fertilizer did not affect the physical properties measured.

NOTES

1 Joint contribution from the Soil and Water Conservation Research Division, ARS, USDA and Nebraska Agr. Exp. Sta., Lincoln. Published with the approval of the Director as Paper No. 1407, Journal Series, Neb. Agr. Exp. Sta. Presented before Div. S-6, Soil Sci. Soc. Am., Denver, Colo., Nov. 18–21, 1963.

2 Soil Scientist, Northwest Branch, Soil and Water Conservation Research Division, ARS, USDA, Pendleton, Oregon (Formerly North Platte, Nebraska), and Professor of Agronomy, Nebraska Agr. Exp. Sta., Lincoln.

Received for publication December 5, 1963. Accepted for publication February 26, 1964.






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