1, spray ethephon. When two true leaves of cucumber seedlings are spread out, a concentration of 200 ppm ethephon solution is sprayed once and then sprayed once every 10 days to reduce the number of female flowering nodes, increase the number of female flowers, and increase the yield by about 15%.
2, foliar spray fertilizer. Spraying 0.3% urea solution at seedling stage can promote seedling early growth. It can also spray 0.5% ferrous sulfate solution to promote seedling growth and strong green color. Spraying 0.2% boric acid solution at 7 leaves can protect the fruit; when a large number of fruiting melons are sprayed, spraying 0.3% potassium dihydrogen phosphate solution and 0.5% urea solution to supplement fertilizer can increase the yield of melon. In the flowering stage of cucumber, spraying with 0.1 ppm aqueous solution of succinyl alcohol and spraying once a day after 10 days increased the yield by 21% according to the test.
3, spraying rabbit feces liquid. Rabbit manure contains a variety of trace elements and amino acid components, and has a good promotion effect on the growth of cucumber in greenhouse. Experiments show that cucumber can significantly improve disease resistance after spraying rabbit fecal fluid. The specific method is: Take dry rabbit excrement 2.5 kilograms, water 40 kilograms, soak for more than 6 days, after fermentation, filter residue, foliar spray, mu liquid 30-40 kg. After the first batch of cucumbers were harvested, they were sprayed and sprayed 2-3 times.
4, spraying chicken manure. The spraying of chicken manure by cucumber can not only supplement the deficiency of nitrogen, phosphorus, potassium and trace elements, but also stimulate the growth and development of crops, promote early maturation, increase drought resistance, cold resistance, and disease resistance. According to experiments, spraying chicken manure three times in the growing period of cucumber can increase production by about 15%. The method is: Take 3 kg of dried chicken manure, 50 kilograms of water, soak for 5-7 days, fully ferment, remove the residue, and spray on the foliage. When the first cucumber finger is thick, start spraying, 30-40 kg of mu liquid, each spraying interval of 10 days, spraying in the afternoon or evening.
5, spraying rare earth liquid. In the initial flowering period of cucumber, spraying 0.2% of rare earth nitrate solution can improve the quality and increase the yield.
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