How to plant virus-free seed potato?
How to plant virus-free seed potato? Please introduce the basic techniques of virus-free seed potato: first, germinate and disinfect the virus-free potato indoors; then, under the aseptic condition of the ultra-clean worktable, the stem tip meristem is cut and transplanted into the test tube for culture. After about 4 months, the stem tip meristem grows into test-tube plantlets; after virus detection, virus-free plantlets are identified from a large number of plants. After rapid propagation and propagation in greenhouse and net shed, virus-free miniature potato or original seed can be obtained; after reproduction, the original seed can be obtained, and the original seed can be reproduced into first-class seed potato, second-class seed potato and third-grade seed potato, which is generally referred to as virus-free seed potato. The main potato viruses were removed, the characteristics of the original varieties were restored, and the purpose of rejuvenation was achieved. Therefore, virus-free potatoes are free from virus, bacterial and fungal diseases in a certain period of time, and their vitality is particularly exuberant, with a significant increase in production, generally by 30% and 70%. As a result, the quality of the product is significantly improved, and the phenomena such as rot, tip, crack, deformity and scar caused by planting susceptible seed potato are greatly avoided. In addition, the transportation cost of seed potato is significantly reduced. Because the weight of virus-free mini-potato is only 2-5 grams, the seed consumption per mu is only 8-20 kilograms. Click to get more potato planting techniques click to get more vegetable planting techniques
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How to effectively control potato late blight?
How to effectively control potato late blight? Please guide the effective control of potato late blight can be carried out from the following points: first, agricultural control: ① selection of disease-resistant varieties, reasonable close planting, formula fertilization, increase the application of potash fertilizer, enhance plant resistance. ② strictly selects disease-free seed potato to eliminate the infection source of disease. ③ is high...
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How to fertilize potatoes?
How to fertilize potatoes? Please introduce the method of applying fertilizer to potatoes can refer to the following methods: apply sufficient base fertilizer based on organic fertilizer, and apply sufficient bio-organic fertilizer, that is, on the basis of 2500-3000 kg of mature organic fertilizer per mu, 45-50 kg of bio-organic fertilizer per mu. Digging holes in the preparation of the ground.
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