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High-yielding cultivation technology of ramie
First, nursery ramie seedlings can be divided into spring and autumn sowing. Spring sowing is generally before and after “rainwaterâ€; autumn sowing should be before and after “white dewâ€. 1, the choice of seedbeds. The fertile semi-sand loam soil with sufficient sunlight, convenient drainage and irrigation, and good water retention and fertilizer maintenance should be selected. 2, fine soil preparation, Shizu base fertilizer. Plow the ground before sowing, fully weathered. Basal fertilizer per acre with stacking maturity of 10 kg of phosphate fertilizer and 1500 kg of soil-fertilizer, spread from the ground and smashed, the width of 1 meter, height of 16 cm, groove width of 33 cm, length of 3 meters, slightly surface Turtle shaped. Afterwards, 40% of Lemu EC with 75 grams of water and 50 kilograms of water is sprayed on the surface of the loquat, and 1000 kilograms of manure water is applied. After sowing, it is sown. 3, sowing. The average mu seeding rate is 0.15-0.2 kg. Before sowing, first mix 2-3 times with fine sand mixed seeds, and then soak in clean water for 2 hours, pick up slightly to dry, mix 15 kg of fine sand, and strive for uniform seeding. After sowing, the mu is covered with 50 kg of ash, mixed with sand and wet surfaces. When the weather is too dry, it is necessary to insist on watering in the morning and evening and keep it moist. Rainy weather should be drained. 4, seedling management. Half a month after the general broadcast can emerge. Seedlings about 7 cm high, combined with weeding for the first time seedlings, require seedlings 3 cm. The second time the seedlings are not covered by the leaves. The last time the seedlings, 180 seedlings per square meter is appropriate. The height of seedlings will be 18-24 cm, and the total number of leaves will be about 10 pieces. The roots will be transplanted after having a nutrient root. In general, there are 100,000 to 120,000 seedlings per hectare of bunting land, which can be used to grow about 10 acres of fields. Second, transplantation and management 1. Madi should choose fertile soil with deep, convenient drainage and irrigation, sunny, back to the south of the semi-sand loamy soil. 2, fine soil preparation, Shizu base fertilizer. Ramie is a crop that requires more fertilizer. Before planting, 5000 kg of landfilled manure should be used to improve the soil. If it is an acid field, 100 kg of lime should be used to neutralize acidity in the Mushi, and then 25 tons of fertilizer should be applied per acre. 2000 kg of kilograms of mixed manure is used as base fertilizer. The land preparation should be fine, and a width of 3 meters and a length of 12 meters should be appropriate. We should choose to plant it on rainy days. Adopting a wide-row narrow-strain system with a spacing of 40 cm, a plant spacing of 25 cm, a hole depth of 15 cm, and a width of 17 cm, the basal fertilizer was applied to the points, and each of the three holes was divided into three types. After planting, the soil was slightly compacted and then 1500 kg of manure water was used as the root-fertilizer. 3, post-plant management. After planting, seedlings should be seeded to ensure seedlings. If it is too dry, it is necessary to infuse it with horse water to make it moist. After planting the next half month, weeding and cultivating, the cultivator is the deepest 5 cm, do not hurt the head. After planting 15 days of cultivating fertilization, use 1500 kg of manure and 0.5 kg of urea per acre. When the height of hemp is 33 centimeters, the hemp has already had more roots and begins to enter the growth stage. The seedlings should be applied in time. To grow to 45 centimeters, see the seedlings and manure water or urea. After cutting the hemp, the hemp leaves will all be returned to the field, and 1000-5000 kg of land miscellaneous fertilizer and 2000 kg of manure water will be used as bud fertilizer. More than 10 days later, see seedlings 2000 mu of manure water, plus urea as topdressing, and apply 75 kg of plant ash or 10 kg of potash. 4, irrigation and drainage. The ramie hi is moist, afraid of drought, avoid waterlogging, should keep the field moist, dry days and more irrigation horse water, rainy days to exclude field water. 5, soil cultivation in winter is the key to seize the high quality and high yield of castor in the coming year. In order to protect the safety of ramie for winter and cultivate strong buds, it is necessary to loosen the ramie, 5,000 kg of Mushi soil miscellaneous fertilizer, 50 kg of phosphate fertilizer and 2000 kg of manure water as the overwintering fertilizer, and add the fertilizer to cover all the hemp heads. Third, timely control of pests and diseases 1, white feather disease. To eliminate waterlogging, dig out the diseased plants and disinfect the ground with a 1:50-fold formalin solution and replant for 1 month. 2, ramie anthrax. In addition to the addition of potash fertilizer, spray Bordeaux mixture 1:2:100 or 125 grams of mu with carbendazim to spray 60 kg of water and apply 40 kg of lime to neutralize acidity. It is forbidden to use unfamiliar human and animal manure. The main pests of ramie include: red head worm, leaf leaf worm, ulnar cricket, yellow caterpillar, firefly, and other long-lived cattle. Can use 90% crystal trichlorfon 150 grams of 60 kg sprayed on the water or use 25% Zhongkee Ling 1000-1500 times liquid sprayed in sunny afternoon.