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The nutritional commonality of common vegetables has the following points:
Nutrient needs are large. Most vegetables have a relatively short growth period, and they are multiplied in one year. The annual output of commercial vegetables per hectare is considerable, and the nutrients taken from the soil are quite large. To this end, vegetables require much more fertilizer per hectare than food crops.
The nutrients taken away are mostly non-transfer crops during harvest, and the nutrient content between stems and leaves and edible organs is small. The nutrient content in the stems and leaves of vegetables has been at a high level, so that it can adapt to the high fertility of vegetable fields, and requires a higher level of fertilization.
There are special needs for certain nutrients. Vegetables are rich in nitrogen, which has a large demand for potassium and calcium; it is sensitive to boron deficiency and molybdenum deficiency.
Specifically, the nutritional characteristics of various types of vegetables: under the premise of balanced fertilization, leafy vegetables require more nitrogen, root vegetables require more phosphorus and potassium, and fruit vegetables require more nitrogen and phosphorus. In addition, due to the high yield per unit of vegetable crops, large amount of fertilizer, and high economic benefits, the fertilization is much more than that of the field.
Nutrient needs are large. Most vegetables have a relatively short growth period, and they are multiplied in one year. The annual output of commercial vegetables per hectare is considerable, and the nutrients taken from the soil are quite large. To this end, vegetables require much more fertilizer per hectare than food crops.
The nutrients taken away are mostly non-transfer crops during harvest, and the nutrient content between stems and leaves and edible organs is small. The nutrient content in the stems and leaves of vegetables has been at a high level, so that it can adapt to the high fertility of vegetable fields, and requires a higher level of fertilization.
There are special needs for certain nutrients. Vegetables are rich in nitrogen, which has a large demand for potassium and calcium; it is sensitive to boron deficiency and molybdenum deficiency.
Specifically, the nutritional characteristics of various types of vegetables: under the premise of balanced fertilization, leafy vegetables require more nitrogen, root vegetables require more phosphorus and potassium, and fruit vegetables require more nitrogen and phosphorus. In addition, due to the high yield per unit of vegetable crops, large amount of fertilizer, and high economic benefits, the fertilization is much more than that of the field.
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