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Effect of fertilizer nitrogen on a dense sward of kikuyu, paspalum and carpet grass. 3. Nitrogen source

Gartner, J. A. and Everett, M. L. (1970) Effect of fertilizer nitrogen on a dense sward of kikuyu, paspalum and carpet grass. 3. Nitrogen source. Queensland Journal of Agricultural and Animal Sciences, 27 (1). pp. 73-87.

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Abstract

In a 1-year experiment on red brown clay loam of pH 5.8 (1: 2.5 H2O) receiving a split application of NH4NO3, (NH4)2SO4, NaNO3 or urea at 50, 100, 200 or 400 Ib/acre N per year, dry-matter yields and N-yield responses to N were linear for all sources. At some harvests, significant interactions occurred between source and rate for dry-matter yield, N concentration and N yield. Generally, at 50 and 100 Ib/acre N there were no differences between sources, but at 400 lb/acre N, NH4NO3 produced 3 320 lb more dry matter per acre than urea. N recovery from NH4NO3 was 92% as against 58% for urea.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Subjects:Agriculture > Agriculture (General) > Fertilisers
Animal culture > Rangelands. Range management. Grazing
Live Archive:20 Feb 2024 02:15
Last Modified:20 Feb 2024 03:20

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