Fertilisers and Nutrition

The same nutrient behaves differently depending on how it reaches the plant. Placement, dilution and irrigation all decide whether an application works or is wasted.

One gives a fast response and leaches fast. The other releases gradually and is harder to over-apply. On sandy soil under frequent irrigation the difference is...

Not a contest between good and bad. They differ in concentration, speed and what they do to the soil itself — and on low-organic-matter sandy soil...

On alkaline calcareous soil, the commonest nutrient problem is not absence but unavailability. Understanding pH explains why adding more of a nutrient sometimes changes nothing.

How to turn a declared percentage into a real quantity of nutrient — and why the oxide-to-element step matters. Method and worked examples, not a dose.

The three figures on every fertiliser bag are not a quality score. They are three different jobs, declared as percentages by weight — and two of...

ما تعنيه الأرقام على العبوة، ولماذا يسبق التحليل أي شراء — بلا معدلات مخترعة. | What the numbers on the bag mean, and why a soil...