Nutrient balance
This is the net difference between the amount of nutrients applied to the soil through fertilizers and the amount removed from the field by crop harvest.
Также говорят: nutrient budget, nutrient accounting, balance of nutrients
Nutrient balance is a fundamental concept in sustainable agronomy, used to track the sustainability of nutrient management practices. It ensures that the inputs of nitrogen, phosphorus, and potassium align with crop demands, preventing environmental degradation.
Practically, it involves a calculated assessment of all nutrient sources against the uptake by the plant. This helps agronomists adjust fertilizer rates and improve nutrient use efficiency throughout the growing season.
Common errors include ignoring the nutrient contribution from organic matter and crop residues, which can lead to over-application of fertilizers and increased production costs.