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Different vegetables require different fertilization techniques and methods.
Leaf vegetables: Leaf vegetables include cabbage, green vegetables, spinach, and leeks. Nitrogen fertilizers are the main nitrogen fertilizers for leafy vegetables, but phosphorus fertilizers and potassium fertilizers need to be added at the same time as nitrogenous fertilizers are grown. For example, if cabbage is cultivated, two fertilizations starting at the rosette stage and before wrapping are the key to high yield. If the supply of nitrogen is insufficient during the growth period, the plants are short and the tissues are rough. The leafy vegetables cultivated in the spring are also easy to convulsive in the early stage; if the phosphorus and potassium fertilizers are insufficient in the later period of the leafy leafy vegetables, they are often not easy to be roasted.
Fruit vegetables: Fruits and vegetables include melons, solanes, and beans. Generally, the seedlings need more nitrogenous fertilizer, but excessive application of nitrogenous fertilizers can lead to leggy, but instead prolong the flowering result, which results in flowering and fruit drop. In the reproductive growth period, the amount of phosphate fertilizer needs to increase dramatically, and the amount of nitrogen fertilizer needs to be reduced slightly. Therefore, the application of phosphorus and potassium fertilizers should be increased. , Control the amount of nitrogen fertilizer. After the cucumber is sitting on the melon, it should be re-fertilized, and each batch of melon should be supplemented once.
Root vegetables: Root vegetables mainly include radish, carrots, etc. The edible portion is fleshy root. In the early growth stage of root vegetables, more nitrogen fertilizer is needed to promote the formation of hypertrophic green leaves; more potassium fertilizer is applied during the middle and late stages of growth, and the amount of nitrogen fertilizer is appropriately controlled to promote the transport of the assimilated substances of the leaves into the roots so as to form a strong fleshy root. If in the late growth stage of root vegetables, there are too many nitrogenous fertilizers and insufficient potassium fertilizer, it is easy to make the aerial part of the crop grow longer, the rhizomes are smaller, the yield is reduced, and the quality is deteriorated.
Vegetable cultivation to classify fertilization
Vegetables are generally short-term nutritional crops that can be planted in multiple crops. Due to the short growing season, the nutrients absorbed per unit time are much longer than crops with longer growing seasons and higher yields. Therefore, more fertilizer should be applied during cultivation. Roots that are deeply rooted, rooted, rooted, and rooted can absorb more nutrients, and fertilization can be more extensive; and poorly rooted, shallowly distributed, poorly nutrient-absorbed vegetables should be finely fertilized.