Answered You can hire a professional tutor to get the answer.
QUESTION
If you continuously grow corn that removes 200 kg of N per hectare each year from the soil, you may have to supply 400 kg of N per hectare per year
- If you continuously grow corn that removes 200 kg of N per hectare each year from the soil, you may have to supply 400 kg of N per hectare per year as fertilizer. What happens to the extra N? Why are applied P and K likely to be recovered by the crop more efficiently than is applied N in the long run?
- Why does Al3+ become a dominant exchangeable cation in acidic soils? Why is it not a dominant cation in neutral soils?
