In order to increase the utilization rate of fertilizers, give full play to fertilizer efficiency, reduce planting costs, improve quality and yield, vegetable top dressings should be classified and carried out.
Leaf vegetables such as cabbage, spinach, celery, etc., are mainly eaten young leaves, the entire growth period is vegetative growth, so top dressing should be based on fast-acting nitrogen fertilizer. During the prosperous period, phosphorus and potassium fertilizers are added appropriately.
Vegetables, such as cucumbers, squash, wax gourds, eggplants, peppers, tomatoes, cowpeas, etc., eat parts of the fruit, generally require more nitrogen in the seedling stage, enter the flowering period, the demand for phosphorus increases rapidly, so in the seedlings Nitrogen fertilizer should be added during the period, and phosphorus and nitrogen should be added during the fruiting period. Taking cucumber as an example, attention should be paid to the application of phosphate fertilizer in the young fruit period. After each batch of fruits, it is necessary to make up the first application of fertilizer (ie the fertilizer is dissolved in water), so as to promote the high quality and high yield of cucumber.
Roots and stems mainly include white radish, carrots, onions, garlic, and potatoes. Their edible parts are allergic rhizomes. This kind of vegetables should be mainly supplied with nitrogen during the growth period to promote the rapid formation of the fleshy stem to the growth. In the later period, topdressing of potassium fertilizers was performed to appropriately control nitrogen fertilizers.
Leaf vegetables such as cabbage, spinach, celery, etc., are mainly eaten young leaves, the entire growth period is vegetative growth, so top dressing should be based on fast-acting nitrogen fertilizer. During the prosperous period, phosphorus and potassium fertilizers are added appropriately.
Vegetables, such as cucumbers, squash, wax gourds, eggplants, peppers, tomatoes, cowpeas, etc., eat parts of the fruit, generally require more nitrogen in the seedling stage, enter the flowering period, the demand for phosphorus increases rapidly, so in the seedlings Nitrogen fertilizer should be added during the period, and phosphorus and nitrogen should be added during the fruiting period. Taking cucumber as an example, attention should be paid to the application of phosphate fertilizer in the young fruit period. After each batch of fruits, it is necessary to make up the first application of fertilizer (ie the fertilizer is dissolved in water), so as to promote the high quality and high yield of cucumber.
Roots and stems mainly include white radish, carrots, onions, garlic, and potatoes. Their edible parts are allergic rhizomes. This kind of vegetables should be mainly supplied with nitrogen during the growth period to promote the rapid formation of the fleshy stem to the growth. In the later period, topdressing of potassium fertilizers was performed to appropriately control nitrogen fertilizers.
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