The Breeding Techniques of "Yushu Kangshao No.1" Seedbed

1. During the breeding season, the potato seeds were all grown before mid-February until mid-April, and 65 kilograms per mu were used to make a breeding nursery bed with a sterile, disease-free sun-filled plot. The leeward sun was flat and the drainage was good. For the groundwater with low groundwater level, the seedbed is preferably east-west. Generally, the bed is about 1.3 meters wide. The length depends on the number of potato species, and the plastic film is covered above. Fill bed soil: bed soil should be loose, fertile, pathogen-free, it is best to use sandy loam. Bed soil is not easy to be too thin or thick, one Generally 8-10 cm is appropriate. A certain amount of decomposed cattle and horse manure should be applied to the bed soil. After the bed soil is leveled, 100 grams of ammonium sulfate is applied per square meter to improve the quality and quantity of the potato seedlings.
2. Selection and treatment of seed potatoes: Select the potato husks with the characteristics of this variety, smooth potato skin, bright skin color, uniform tuber, moderate size, no disease and no injury, no cold damage and no wet damage, and more white pulp. . The weight should be 3 2-1 kg. It is advisable to use 65 jins potato per acre.
In order to prevent diseased seed potatoes, soaking with warm water or pesticides can be used. When soaking in warm water, soaking with warm water of 51-54 degrees for 10 minutes, the temperature and time of the water must be strictly controlled when soaking seed. Seedlings with open seedlings or seed potatoes that have suffered minor frost damage should not be soaked in warm water. Seed potatoes can also be used to soak seeds with 50% carbendazim plus 500 times water, or 70% tetrakitobutrazin plus water 700 times soaking for 10 minutes, can be bactericidal and disease prevention.
3, timely breeding, spring potato breeding before and after the convulsions, south of the Huaihe River after the start of breeding in mid-February, north of the Huaihe River area before April 10, with a hot bed or cold bed covered plastic film breeding. Exotic rows of sweet potatoes were mostly used before April 20th. Breeding was done in open field and the film was not covered. Breeding should be done 45 days before planting.
4, row seed technology: row seeding Row, flat row and straight row three. The oblique row is 1/3 of the potato head pressing the potato tail, so that the upper part of the potato block is bristled, and the solar energy breeding is done in a flat row. The potato seeds are evenly distributed and not dense, which is conducive to cultivating strong seedlings. Straight line should not be used under normal circumstances. Discard the head and tail of the row of potatoes, can not be inverted. In general, the color of the potato husks is dark, and there is more pulp juice and less fine roots. Due to the different size of the tubers, they must be categorized and selected, and the potatoes should be sorted separately. The principles of arranging large-sized sweet potatoes, thinly-divided sweet potatoes, and arranging rows should be mastered so that the uniform covering of the soil on the top of the tubers can be uniform and tidy, facilitating seedbed management. Sprayed acetochlor herbicide to prevent grass buds within 3 days after the potato seedlings are discharged. Detailed seedbed management and field cultivation techniques, free after-sales service.

big size hookah

Shisha Hookah,Smoking Water Pipe,Zinc Alloy Hookah

Hookah,Glass Hookah Co.,LTD , http://www.china-shisha-hookah.com