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Movement, pH effect and nitrification of band-applied anhydrous ammonia, urea and sulphate of ammonia in an alkaline black earth

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Whitehouse, M.J. and Leslie, J.K. (1973) Movement, pH effect and nitrification of band-applied anhydrous ammonia, urea and sulphate of ammonia in an alkaline black earth. Queensland Journal of Agricultural and Animal Sciences, 30 (4). pp. 301-310.

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Abstract

Data from a laboratory experiment showed that movement of the ammonium ion was mainly lateral and vertically upward. Anhydrous NH3 was the most mobile fertilizer. Anhydrous NH3 and urea increased pH initially, but this increase was soon followed by a rapid decrease. Urea and anhydrous NH3 were almost completely nitrified after thirty days, but only 80% of the (NH4)2SO4 was nitrified after ninety days.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Keywords:nitrogen fertilizers; ammonium fertilizers; movement in soil; soil pH; amendments; band placement; application methods Soils and Fertilizers
Subjects:Agriculture > Agriculture (General) > Soils. Soil science > Soil chemistry
Agriculture > Agriculture (General) > Fertilisers
Live Archive:19 Feb 2024 04:39
Last Modified:01 May 2024 05:59

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