The rare earth, also called rare-earth microelement fertilizer or rare earth nitrate, is a new type of rare earth element fertilizer that was first introduced and promoted in China. Applying on greenhouse vegetables can promote photosynthesis, enhance plant resistance, and improve the adaptability of seedlings to low temperature, high humidity, low light and other undesirable environments, thereby promoting high quality, early maturing and increased yield. Application of rare earth to tomato plants can increase the height, the speed of leaves, leaves increased, flowering 3 to 5 days in advance, the number of fruits per plant increased by 2 to 20, the fruit sugar content increased by 10% to 20%, early maturity of 5 to 7 days . Application method: The main spraying method is to use foliar spraying. Use 45-50 grams of rare earth per acre, add 0.1% solution to water, and spray one time each in the early flowering stage and young fruit expansion period. Cucumber application of rare earth can generally increase the previous production by more than 40%, and the total output increase by 20%. Application method: seed dressing, first 1-2 grams of rare earth dissolved in 1.5 kilograms of water, and then use a sprayer or a small watering can spray on the cucumber seed, while spraying and mixing, dry sowing; foliar spray, with rare earth 10 per acre In grams, the solution with a concentration of 0.03% was sprayed once in the first flowering period and then again in about 20 days. The application of rare earth in pepper can increase the content of vitamin C in fruit by 13%, and increase production by 14%. Application method: mainly adopting foliar spraying, spraying twice in total during the whole growth period. The first time before transplanting 10 days or after entering into long-term survival after transplanting, spraying concentration is 0.03% to 0.05%; During the initial flowering period, the spraying concentration was 0.08%.
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