Environmentally Straw Cup,Straw Cup,Wheat Straw Cups,Wheat Straw Drink Cups Yangzhou Tongfun Red International Trading Co,Ltd. , https://www.i-ecbio.com
The selected varieties used were Dongnong 303, Kexin No. 4 and Zhongshu No. 2 and other fine varieties, and native species with severely degraded species could not be used. The amount of 150 kg per acre is used. The large potatoes are sown and cut. Each seed potato weighs 20-25 grams and 2 or 3 buds.
Fertilizers were applied to the base fertilizer in one application. Before ploughing, 50 kg of sulfur-containing compound fertilizer (15% nitrogen, phosphorus, and potassium) was used per acre, and chlorine-containing fertilizer could not be used. After the soil preparation, the farmyard fertilizers are applied to rot, such as pigs, sheep, rabbits, chickens, duck manures and human excrement of more than 1,500 kilograms. Holes should be deeper and larger, first use human excrement to acupoint, then apply a pair of livestock manure, cover with a layer of soil, avoid direct contact with seed potatoes and fertilizers to affect the emergence, the remaining fertilizer can be applied between rows. After the cover soil.
Timely sowing and covering methods are different, sowing time is also different, film thickening film covered by small sheds can be planted in late December, thick film small arch shed covering cultivation in early January sowing, mulch sheet covering in late January sowing.
After chemical weeding and sowing of the cover soil, the soil was closed before the cover film was covered, and 50% of acetochlor was sprayed with 75-100 ml of water per acre.
Cover the membrane with soil around the membrane to ensure no leakage before sealing. Immediately after emergence, the seedlings were broken and the seedlings were sealed with mud to increase the soil temperature. The sunny days covered by arch sheds must be ventilated and ventilated to prevent high temperatures from burning.
Chemical regulation was controlled with uniconazole at the flowering stage to the flowering stage of the potato.
Disease prevention and control The main disease of potato pests is late blight, and the sporadic diseased plants in the field should be removed in time, and then sprayed with 25% of treprolasin 800 times. The pests mainly consisted of 28-star ladybugs and aphids. The 28-star ladybugs were treated with 80% dichlorvos 800 times spray and the aphids were treated with 10% imidacloprid 2000 times.
Spring potato cover early-maturing cultivation
Spring potato is covered with early-maturing cultivation techniques and can be marketed 10 to 20 days earlier than conventional open cultivation. There are mainly three ways: mulching film, small arch shed double film covering, thick film small shed covering and plastic film covering. The main technical points are as follows:
Next Article
Chai yam's finishing technology