Long-term effect of superphosphate on accumulation of soil phosphorus and exchangeable cations on a grazed, irrigated pasture site
作者： R. J. Haynes , P. H. Williams
DOI: 10.1007/BF00010182
关键词: Inceptisol 、 Soil fertility 、 Chemistry 、 Soil water 、 Pasture 、 Phosphorus 、 Dry matter 、 Grazing 、 Ustochrept 、 Agronomy
摘要: The annual herbage dry matter yield, P concentrations and quantities of P, K, Mg Ca cycled by grazing sheep were calculated for a 37 year-old grazed pasture supplied with superphosphate at rates 0, 188 376 kg ha-1 annually. amount distribution inorganic organic exchangeable in the soil below three treatments was also measured compared that wilderness area which had not been used agriculture.
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