I’ve been known to remind my students that just because testing demonstrates presence of e.g. ‘phosphate’ in a soil sample that doesn’t necessarily mean it’s in a form that can be accessed/utilised by plants. And...
In this and my next few posts we conclude our look at essential plant macronutrients that started in some previous articles, and this time concentrate on the last four of the nine elements – C, H, O, P, K, N, S, Ca and...