Most references say that the NPK values indicate the % nitrogen, % phosphorus and % potassium. They say this, not because it’s true, but because it makes it simple to explain fertilizer concepts to the general public. What does NPK really mean?
2. What is cation exchange capacity and how does it relate to soil fertility? 3. Describe the soil horizons found in solum. 4. Cont Why do plants develop bulbs? How are biofertilizers different from fertilizers such as NPK ...