Applying fertilizer to the characteristics of vegetable re-broadcasting
Vegetables are generally short-term nutritional crops, which can be re-broadcast. Due to the short growing season, the nutrients absorbed per unit time are much more than those with longer growing seasons and higher yields. Therefore, more quick-acting fertilizer should be applied during cultivation. Generally, roots that are deep and wide, have more roots, and root hair can absorb more nutrients, and the fertilization can be more extensive; while the roots are poorly developed, shallowly distributed, and poor in nutrient absorption, fine fertilization is required.
The root system of vegetable seedlings is still underdeveloped, and the amount of nutrients absorbed is not too much. However, the fertilizer requirements are very high, and some thin quick-acting fertilizers should be applied appropriately. In the vegetable growth period and the fruiting period, a large amount of nutrients should be absorbed, and sufficient fertilizer must be supplied. It usually adopts stages of topdressing, organic fertilizer and inorganic fertilizer alternation, NPK fertilizer and micro-fertilizer balance, fertilization and irrigation combined with the application of fertilizer and spraying vegetable stalk and stem, which can effectively improve the ability of vegetables to absorb nutrients. Give full play to the effect of fertilizer production. According to the characteristics of fast growth of vegetables, weak roots and high yield, organic fertilizers should be combined with chemical fertilizers. Organic fertilizer not only provides a variety of nutrients for vegetables, but also helps to increase yield and improve quality with the decomposition of organic fertilizer.
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