PHOSPHATES IN SOIL
UTILISATION AND EFFICIENCY The utilisation and efficiency of phosphates in the soil is discussed in a report on experiments in England as follows: “Phosphates have been applied sometimes assiduously and more often intermittently, to English soils for nearly a hundred years; yet even at the end of this time we are still far from a complete understanding of their partition between the soil and the plants. “At Cockle Park, where the pasture has been receiving a triennial dressing of scwt of basic slag per acre for over 40 years, there is even to-day a marked improvement in the sward every time a dressing is applied. This continued response over such a span of years is not due to the exhaustion of the added phosphorus at the end of each threeyear period, for only a tenth of the added phosphorus has been removed by the plants since 1897. The remaining nine-tenths has been locked up by the soil particles, and the roots possess no key that can unlock the door.”
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Bibliographic details
Timaru Herald, Volume CXLVII, Issue 21508, 22 November 1939, Page 3
Word Count
172PHOSPHATES IN SOIL Timaru Herald, Volume CXLVII, Issue 21508, 22 November 1939, Page 3
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