In spite of the variety and variety of vegetables, there are common characteristics in nutrient requirements:
The nutrient requirement is large. The average value of nutrient absorption by various vegetables is compared with the nutrient absorption of wheat. The average amount of nitrogen absorbed by vegetables is 4.4 times higher than that of wheat, the phosphorus uptake is 0.2 times higher, the potassium uptake is 1.9 times higher, and the calcium uptake is 4.3 Times, 0.5 times higher magnesium absorption.
There is a special demand for certain nutrients vegetables like nitrate-N; demand for potassium and calcium; more sensitive to boron deficiency and molybdenum. These nutritional characteristics are an important basis for rational fertilization of vegetables.
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