Onions are common vegetable varieties in our lives, and their planting profits and prospects are considerable, which has attracted many growers to engage in the onion planting industry. But if you want to grow good onions, you have to have scientific planting techniques. The following is a small series of Huinong. I will introduce you to the main points of onion scientific planting methods. Main varieties of onions: Beijing yellow skin, big water peach, scorpion flat, topaz onion, Xiongyue round onion, Fujian yellow skin onion. Onion soil: Onion has higher requirements on soil pH, suitable for pH between 6.0 and 6.5, and the pH of fertilizer is 6.0-6.5. Onion seedlings: The nursery land selection is loose and fertile, and the irrigation and drainage is good. The sand loam or new land of Chinese onion and garlic has never been used before. Watering onions : Watering is suitable, onion like wet stains, early seedlings are small, the water demand is not large, so keep the soil moisture moderate. After spring, as the temperature rises, the growth rate of onion fruit begins to increase, the bulb begins to grow, the water requirement becomes higher, and the water should remain adequate. Onion fertilization: Fertilization, regular regular fertilization, although the yield of onion is high, but the ability to absorb nutrients is poor, so the nutrition should be fully supplemented, mainly in the sprouting stage of nitrogen, the bulb expansion period needs to apply phosphate fertilizer, potash fertilizer. Onions per kilogram of yield require a nitrogen content of 2.0-2.4 kg. Phosphorus is 0.7-0.9 kg and potassium is 2.2-4.2 kg. Calcium 1.16 kg, magnesium 0.33 kg. Appropriate amount of mineral elements manganese, copper and boron have an effect on yield and quality. Onion pest control: The main pests and diseases are downy mildew, purple spot, atrophic disease, soft rot; insect pests, leaf miners, thrips, mites and so on. Prevention and treatment methods: Because onion resistance is strong, it is mainly based on prevention and prevention measures. The above is the main point of onion technology compiled by Huinong. I have learned it? If you want to know more about agricultural technology, please pay attention to the Hui Nong School! Frozen Octopus,Octopus Frozen Seafood,Frozen Seafood Octopus,Octopus In Flower Shape Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com
