THE BASIC PRINCIPLES OF D AND K FERTILIZER

Additional precisely, the primary selection ("N worth") is the percentage of elemental nitrogen by pounds while in the fertilizer; that may be, the mass fraction of nitrogen times 100. The second range ("P worth") is The share by weight of phosphorus pentoxide Pيلعب النيتروجين دورًا حيويًا في تشجيع نموّ أورا�