Planting spring villosum should be selected after nursery. The breeding ground should be selected for lee, easy irrigation and drainage, and fertile soil on shady slopes. Deep plowing before sowing, meticulous preparation of land, for 15 centimeters high and 100 centimeters wide. Combined with 25,000 kilograms of composting fertilizer made from the mixture of superphosphate and cow dung. Seed propagation methods are seed propagation and branch propagation, and seed propagation is the main method. After the seeds mature from August to September, choose a large, fresh fruit without pests and diseases, and put the fresh fruit in the sun for 1 or 2 times. The fruit drying temperature should be kept between 35°C and 40°C, and then put in the room. For 4 days, wash seeds with pinch peel and dry them for broadcast. Avoid sun exposure. The sowing period is divided into autumn sowing and spring sowing, autumn sowing in August to September and spring sowing in March.
When the seeds are fresh and the temperature is suitable, the emergence rate is higher. Choose the back of the wet, loose, well-drained soil for maggots, 畦 high 13.2 cm, width 1 ~ 1.33 meters. The basal fertilizer should be applied before sowing. The cultivar should be ploughed thoroughly and the sorghum surface should be leveled. The scallops should be sowed at a spacing of 13.2 cm. The sowing depth should be 1 to 1.5 cm. The seedlings should be planted 20 days after sowing and the seedling emergence rate can reach 60% to 70%. The sowing rate per acre is 3 to 3.5 kg, and 20 mu of seedlings can be planted for each field per kilogram of seed. The fertilization at the seedling stage should be applied thinly and the amount of fertilizer should be gradually increased. When the seedlings grow two true leaves, fertilization is started. After each half month or once a month, apply 1:8 diluted water or 1.5 to 2 kg of ammonium sulfate to 1500 kg of water. To the seedlings have 10 leaves, about 10 ~ 13.2 cm high, according to the row spacing 2020 cm transplant. To be seedlings more than 50 cm can be planted. Planting time in Daejeon is generally best from April to May. It can also be planted from August to September, but pay attention to watering or irrigation. At other times, the survival rate of colonization was low because of the low or high temperatures. Before planting, clear the weeds and shrubs in the ground and cut down too many shaded trees; plunge 25 to 30 centimeters deep and remove roots and stones to dig wells around the mountain; if there is not enough manpower, build terraces to facilitate Soil and water conservation. Flatland is used as an example. Planting seedlings should be cut near the time, cut off part of the leaves (about 2/3), with the cut with the species, generally according to 0.6 to 1 meters of row spacing from the opening points, the length of 30 cm, width 20 cm, depth 20 cm. The first application of human organic manure such as human feces and manure as basic fertilizer, and then planting, about 700 per acre need seedlings, seedlings cover 6 to 7 cm, so that the top of the new stems exposed on the ground, the base with a solid, the surface should be lower than the ground . After planting, cover the holes with weeds. When the weather is dry, it should be sprayed or irrigated in time.
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