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Soil Test And Phosphorus Rate For High Rainfall Clover Pastures, Robert Summers, David Weaver
Soil Test And Phosphorus Rate For High Rainfall Clover Pastures, Robert Summers, David Weaver
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When new land was first developed, phosphatic fertilisers had to be applied at high rates to overcome Phosphorus (P) deficiency, and to increase P fertility. Once good P fertility has been established after a number of years of applying P, the requirement for applying high rates of P falls. After that you only need to apply enough fertiliser P to replace that removed in products, fixed by the soil, eroded and leached, that is a maintenance rate of P.
In relation to P fertiliser decisions for pastures you need to ask:
• Do I need P?
• How do I …