Soil fertility, Soil testing, Plant analysis, Fertilizers
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Soil and plant analysis can be used to identify problems in soils, diagnose nutrient deficiencies and as a guide to fertiliser usage.
Soil testing is particularily useful where large amounts of phosphorus and potassium are leached or removed from the paddock in hay or silage.
Actual rates of fertiliser can only be recommended from soil testing and only in conjunction with additional biological and economic information.
Cox, Walter Jacob
"Soil and plant analysis : a guide to fertilizer usage,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 19
, Article 3.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol19/iss1/3