In 2000, Shanquan Town, Longjiang County, Heilongjiang Province began to popularize the cultivation techniques of corn mulching film on a large scale. The average yield of corn per hectare of arable land was 9000-11250kg, which was 3750kg more grain per hectare, and the income increased 2250-3000 yuan. As follows: (1) The selected corn mulching film covers the cultivated land suitable for the ditch and pond, the second cropland and the soil that is more viscous. Choose a flat terrain, fertile soil and consistent cornices. 2 Soil preparation and fertilization When the soil is defrosted by 5–10cm deep in the spring, use a rotary cultivator to remove the maggots. For example, the former hoe is a hard hoe such as corn and sorghum, and the smashing of “three pods†is the standard. When the soil is thawed up to a plowing soil, a new plow is prepared at the “Three Plows†site preparation site and the plutonium is used for repression. The pry width is 66cm. Combined application of 150 kg of diammonium phosphate, 37.5 kg of potassium chloride and 150 kg of urea as base fertilizer per hectare of cultivated land. Site preparation requires smooth surface, no debris, and easy to cover. 3 Suitable sowing dates for sowing are from April 15 to April 25, and it is better to choose a variety that is 10-15 days longer than that of the local live variety, and the effective accumulated temperature is 100-150°C. The variety that has been selected for several years is Sidan19. Two days before sowing, germination began, and the plants were cultivated using filtered water, and 37.5 kg of diammonium phosphate was used as a seed fertilizer per hectare. Row spacing is divided into 2866cm, 2666cm, and 2466cm according to the conditions of soil fertility. Closely-grained plots are selected for dense planting; plots with poor fertility and low fertilization levels are selected for sparse planting. Seeds of 2-3 seeds each sowing, cover thickness of 3-4cm (early sowed land cover thickness can not be less than 3cm, to prevent the growth of cold and frozen corn growth point.) 4 cover thickness selection is 0.008mm, The high-quality mulch film with a width of 1300mm is covered with a laminator, covering two piles per operation, with a film volume of 75kg per hectare of arable land. In order to prevent the weeds from breaking the mulch and reduce the loss of heat and moisture, chemical weeding can be performed before filming after sowing, that is, 38% atrazine suspension per 3000 hectares, 3,000 to 375 kg of water, and 225 to 375 kg of water. Frozen on the day, the film is completed on the same day. 5 Field Management 5.1 Each maize seedling will be released manually after the emergence of 5.1 maize seedlings to prevent the mulching of seedlings under high temperature weather. And soil compaction, compaction of the root film of the seedlings. 5.2 Due to the high soil temperature of the film-covered maize plots, some plants have tillers, and manual removal of the crops before the jointing of maize reduces nutrient consumption. 5.3 In case of a special drought year, artificial drought irrigation 1-3 times to ensure a good harvest. (Author: Tang Xue-Hai Jiang Limin Unit: Longjiang County, Heilongjiang Province town of Spring Agricultural Station)
Ningxia Red Goji Berries,Chinese Wolfberry Juice,Healthy Food
Dried Fruit Goji Black Berry Co.,Ltd , http://www.chgojipowder.com