Plant nutrition as described by Ashman and Puri: Soil Science. Phosphate is regarded in this diagram as a macro nutrient, although Dr Rosmarin (Stockholm Environment Institute) sees it more as a micro nutrient! The UK Gardeners Society monitors the content of human nutrition as presented in our food.
Nutrient rich soils help give plants strength, but chemicals secreted by the natural fungal breakdown of excrement gives plants a level of disease immunity they would otherwise not enjoy !
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