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Effect of pasture on subsequent wheat crops on a black earth soil of the Darling Downs. II. Organic C, nitrogen and pH changes

Whitehouse, M.J. and Littler, J.W. (1984) Effect of pasture on subsequent wheat crops on a black earth soil of the Darling Downs. II. Organic C, nitrogen and pH changes. Queensland Journal of Agricultural and Animal Sciences, 41 (1). pp. 13-20.

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Abstract

During the 11 year period 1958 to 1968, continuous cropping to wheat was compared with a rotation involving 3 or 4 years of lucerne-prairie grass pasture followed by wheat, on a Darling Downs black earth. Soil chemical measurements made at various times showed that 2 to 4 years of lucerne based pasture increased organic carbon, total N, mineralisable-N, while pH decreased. Soil total N build-up maximised after 2 years of pasture while the residual effect of 3 or 4 years pasture produced significantly higher nitrate-N levels in soil for up to 7 years, and was related to wheat yield and quality improvements.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Subjects:Agriculture > Agriculture (General) > Soils. Soil science > Soil chemistry
Agriculture > Agriculture (General) > Soils. Soil science > Soil and crops. Soil-plant relationships. Soil productivity
Live Archive:19 Feb 2024 05:04
Last Modified:19 Feb 2024 05:04

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