Abstract
The presence of a thatch layer in established pastures could reduce the contact between broiler litter and soil, thus increasing the potential for surface runoff contamination with litter P. We conducted a laboratory study to evaluate the effect of a thatch layer on the dynamics of water-soluble P in undisturbed cores taken from a pasture. Cores with and without a thatch layer received a surface application of broiler litter (5 t hm−2) and were incubated at 25°C for 56 d. The result showed that on the soil surface the contents of water soluble-P (39 kg hm−2) of the cores with the thatch layer was higher than that (20 kg hm−2) of the cores without the thatch layer. Therefore on well-established pastures fertilized with broiler litter, the presence of a thatch layer might lead to high concentrations of water-soluble P on the soil surface.
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Foundation item: This paper was supported by the “973” project (G1999011804-03).
Biography: CHEN Xin (1968-), Ph. Doctor, Associate research fellow in Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, P. R. China
Responsible editor: Song Funan
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Xin, C., Qing-zhong, Z. & Cabrera, M.L. Effect of thatch on water-soluble phosphorus of pasture soil fertilized with broiler litter. Journal of Forestry Research 13, 71–73 (2002). https://doi.org/10.1007/BF02857150
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DOI: https://doi.org/10.1007/BF02857150