Yam high-yielding cultivation technology

First, choose good breeds. Suitable for local planting are mainly elephant legs and yam called yam, yams have a leading (bud mouth), more than a few children (beads), yam and other sections. The most commonly used is the production of the leading species, select the short and full neck, buds full, no pest damage species. The cut length is 12 to 15 cm, and the faucet cuts off the sun for 23 days to promote wound healing. After applying the wound with lime or stove dust, the drying effect is better.

Second, choose the site, site preparation and base fertilizer.

1. Selection of land: The adaptability of yam to soil is very strong. The tubers grow in deep soil and the stem ends are very soft. When cultivated, they are loose, fertile, with deep soil layer, low groundwater level, easy irrigation, and they have not been planted for 1-3 years. Land of yams.

2. Site preparation: Yam is deep-turned about 50 centimeters after the harvest to remove field debris.

3. Base fertilizer: Before sowing, Mushi applies 2000 kg of decomposed farmyard manure and 50 mg of calcium and phosphorus as base fertilizer.

Third, timely sowing. According to the climatic characteristics of my county and the growth characteristics of yams, the planting time should be from late March to early April.

Fourth, rational dense planting. Row spacing is about 100 cm, plant spacing is 80 cm, and acres are planted with 800-1000 ponds.

Fifth, field management.

1, water and fertilizer management. Before the emergence of seedlings, yam is not watered, so as not to reduce the soil temperature and cause bad seeds. If water accumulates, it should be eliminated in time and combined with the ditch and soil. After the emergence of the first clearing manure water (1000 kg per mu) or urea 2030 kg, when the tuber into the expansion period (in late August) to catch the second time the hedge fertilizer, Mushi fertilizer 50 kg.

2, thinning. The first fertilization combined with thinning seedlings, leaving 1? 2 strong seedlings per plant, and the rest were removed.

3, pest control, pest control. Diseases mainly include anthrax and wilt disease. With 65% mancozeb or 50% carbendazim 800 times the prevention and treatment, the initial onset of spraying once every 7-10 days, continuous 2 3 times. Insect pests are mainly earthworms and tigers. Before planting, use 50% phosphoric acid or 50% of the enemy line spirit and apply 6 kilograms of medicine per acre. Use 3% ground to bury 6 kg of fine soil to apply Nematode in the pond.

6. Harvesting. After the frost falls from the end of October, when the stems and leaves begin to yellow, they can be harvested before the emergence in March of the following year.

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