1. Roots and stems (including bulbs, tubers) vegetables Root vegetables (such as radishes, carrots, potatoes, onions, etc.) mainly control the growth of plant shoots, which is conducive to the transportation and accumulation of substances. Such vegetable spraying foliar fertilizer should be mainly phosphorus and potassium fertilizer, such as potassium dihydrogen phosphate, and micro fertilizer, such as radish sprayed with boron fertilizer, can not only improve yield, but also prevent heart and brown heart disease. Generally, the yield can be increased by 15%-30%. Potato spraying zinc sulphate and molybdenum fertilizer mixture can generally increase yield by about 10%. Second, melons, beans and flower bulbs These vegetables should be based on nitrogen, phosphorus and potassium multi-element compound fertilizers. It is necessary to promote vegetative growth, set up a high-yield posture, and coordinate reproductive growth to achieve high yield and quality. The demand for nitrogen, phosphorus and potassium in these vegetables is relatively balanced. Suitable foliar fertilizers are potassium dihydrogen phosphate solution or 1% urea plus 2%-3% superphosphate leaching solution mixed with 0.5% potassium sulfate, sprayed 2-3 times in the middle and late stages of vegetable growth, and rare earth micro-fertilizer Spray. The spraying of boron fertilizer on the solanaceous vegetables is conducive to flowering and setting fruit; the spraying of boron and molybdenum fertilizer on broccoli and other flower bulbs is beneficial to the growth and development of flower balls; the bean vegetables are sensitive to boron and molybdenum, and the application of boron and molybdenum fertilizer is Conducive to flowering and pod formation; cucumber spraying potassium dihydrogen phosphate solution can effectively inhibit the occurrence of downy mildew, and can also reduce deformed melons. Third, leafy vegetables Such as cabbage, celery, lettuce, spinach, fungus, amaranth, etc., foliar fertilizer should be mainly nitrogen fertilizer, nitrogen fertilizer is mainly urea, followed by ammonium sulfate. The spraying time is mainly in the first half of the growth period, and it is not suitable for application before the late harvesting. Spraying boron fertilizer in the middle of the growth of celery can prevent the burnt heart of the heart caused by stem cracking, and can also prevent cabbage leaf burning. Spraying foliar fertilizer can generally increase production by 15%-30%. Nitrate nitrogen fertilizer should not be used as foliar fertilizer. Long-term consumption of nitrate or nitrite ions can cause cumulative poisoning, which seriously affects people's health. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Security Safe Box,Dual Alarm Safe Box,Security Office Safes,Security Home Safes Hebei Yingbo Safe Boxes Co.,Ltd , https://www.yingbosafes.com
Detailed description of foliar fertilizer suitable for use in various vegetables
Foliar fertilizer is a fertilizer for the purpose of foliar absorption, which directly applies the nutrients required for crops to the foliage, called foliar fertilizer. What are the foliar fertilizers suitable for vegetables during planting?