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Two-line hybrid rice cultiva
The two-line hybrid sorghum sorghum cultivars “Xiangliangyouyi No.1â€, “Xingxiangjing No.1†and “Xingxiangjing No.2†developed by the Hunan Academy of Agricultural Sciences Gaochun Research and Development Center are all of good quality. With good taste, it is a high-quality raw material for famous ququ wine, food processing and livestock and poultry feed. Now it has been popularized and applied in production and has received good application results. All three varieties are wine and grain type, which are early and mid-maturing varieties, plant height 150-160 cm, compact plant type, strong resistance to stress, lodging resistance, suitable for dense planting and strong regeneration ability. The southern part of the spring can be used for a fall of regeneration "a kind of two income." The growth period is 110-115 days in Hunan spring, 105-110 days in summer, and 85 days in autumn. General yield of 450 to 550 kilograms, the regeneration of 550 to 650 kilograms in the fall. Its high-yielding cultivation techniques are now described as follows: Proper sowing. The southern region should adopt nursery transplanting, and sowing in late spring from late March to early April can be “a kind of two-foldâ€. Summer and autumn broadcast in May to July. The spring sowing in the north should be from the end of April to the beginning of May, and it can also be seeded and transplanted live. Use the most species. Seedlings transplanted with 450-500 grams per acre field, live 900 ~ 1125 grams. The ratio of seedbed area to Daejeon is guaranteed to be 1:10 to ensure dilute seeding. Seed beds should be chosen for soil, such as fertile land and water, and a suitable amount of soil miscellaneous fertilizer should be applied before the whole soil. The use of pig manure and unfermented manure containing ammonia is prohibited during filming. Before sowing, soak seeds in fresh water for 8 hours. After the water is drained, apply a uniform dressing of the seed disinfectant in the packaging bag per 450 g of seed. Cover species should not be too thick, it is appropriate to not expose seeds. Transplanting in a timely manner, reasonable dense planting. Sorghum seedlings 4 leaves 1 heart to 5 leaves 1 heart single plant transplanted and watered live water. Live field sorghum 3 to 4 leaves between the seedlings, Dingmiao, each hole should be left 1 seedlings. The spacing is 17 centimeters and 40 centimeters, and the density is guaranteed between 9000 and 10,000 plants per acre. If any parturition occurs, it will be erased. Fertilizer management. To reuse basal fertilizer, apply 75 kg of compound fertilizer and 3,500 kg of farmyard fertilizer per mu. 6 ~ 7 acres of topdressing urea about 10 kilograms, jointing (9 leaf period) acres of topdressing urea 15 to 20 kg. Chemical fertilizers cannot directly contact sorghum roots, stems, leaves and seeds to prevent fertilizers. After the rain, the gutters were drained in time, and the drought poured water in time. Pest control. Herbicides, as well as pesticides such as dichlorvos and trichlorfon and their residues are particularly sensitive to sorghum and must be prohibited from use. Prevention and control of locusts and other major insecticide spray; aphids should be mastered before the 3rd instar larvae before the control, spraying with triazophos or fipronil; purple spot and anthrax to prevent the main, from the 6 to 7 leaves, with mancozeb manganese Zinc spray; Jinggangmycin spray for controlling sheath blight. The dosage refers to the instructions. Regeneration cultivation management. 1. Before the harvest, it is necessary to water the horse water once a day for 10 days and apply urea 7.5 kg per mu, which is conducive to regeneration. 2. When 80% of tassels are mature, they can be harvested, chopped culms in time after harvest, and prevent cracks in the cornices, leaving 3 to 4 cm of pile height. 3. Cultivate and weed in time after cutting culms, top-dressing soil and irrigation 1 or 2 times, cover the regenerated seedlings with pre-season sorghum stalks, in order to facilitate water conservation and drought protection, and ensure that the buds sprout and grow long. 4, regeneration seedlings 3 ~ 4 leaves between the seedlings, Dingmiao, each selected to retain the base of strong seedlings 1 to 2 plants, per acre left 1.3 to 14,000 seedlings. 5, re-apply joint fertilizer, 8 to 9 leaf stage per acre topdressing 15 to 20 kg of urea.