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RESEARCH ARTICLE

Studies on some deep sandy soils in Cape York Peninsula, North Queensland. 3. Losses of applied phosphorus and sulphur

GP Gillman

Australian Journal of Experimental Agriculture and Animal Husbandry 13(63) 418 - 422
Published: 1973

Abstract

Losses of applied phosphorus and sulphur from a 100 cm profile of a deep siliceous sandy soil in Cape York Peninsula have been studied in the field over a period of three wet seasons. The P and S was applied in two treatments: superphosphate (880 kg ha-1) and 'biosuper' (1072 kg ha-1). About 50 per cent of the applied P was lost from the top 30 cm of the profile but all remained in the 100 cm depth. Only 10-30 per cent of the applied S was recovered in the 100 cm profile. Zones of P accumulation were generally related to Fe and Al content of the soil horizons. Legume growth and composition over the three seasons was adequate, and reasons for this are discussed.

https://doi.org/10.1071/EA9730418

© CSIRO 1973

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