2. Taro can be ridged, one ridge and two rows. First, ditch the ditch according to the depth of 80cm 10cm, then water the soles of the feet, and plant taro in the ditch according to the plant spacing of 30cm-35cm. Then plant 1 taro in each hole, cover with 2 cm thick burnt soil, sow continuously for 3-5 rows, and plant again for 47-5 rows.
3. About 20 days after sowing, break the ground and germinate in time, break the film and lead the seedlings, and cover the film holes with wet soil. Because taro buds can't be unearthed at the same time, we should go to the field every 1-2 days before seedling protection, and break the film in time to protect the whole seedling and Miao Zhuang. It is advisable to hoe deeper at seedling stage to promote rooting.
4. Taro likes humidity and is afraid of drought. When 80% of the seedlings emerge in the field, water is poured once to preserve the seedlings and promote the growth of roots. Keep dry and moist until the seedlings grow to three leaves. When the soil turns white, water them with a little water. After 4-5 true leaves reach the bulb expansion stage, they should be watered with big water frequently, once every 7- 10 days. In the hot and dry season, pay attention to watering in the morning and evening to prevent drought and heat. After the end of September, the water demand decreases, so water should be less, and drainage and waterlogging prevention should be paid attention to at ordinary times.
5. Taro has a long growth period and needs a lot of fertilizer. Topdressing 3-4 times, topdressing for the first time when 2-3 leaves are used. Urea 10 kg can be applied with water per mu. Secondary fertilizer should be applied when the leaves are five, with urea 10- 15 kg and potassium dihydrogen phosphate 3-5 kg per mu; When the leaves are 7-8, the underground bulbs begin to swell, and the third fertilization can be carried out, with 25-30 kg of urea and 20-25 kg of potassium sulfate per mu. Every time fertilizing and ditching, it is scattered in the ditch, and after fertilizing, it is combined with soil cultivation to level the ditch.
6. When taro grows 2-3 true leaves, combine shallow tillage and weeding 1 time, and cover the soil in the furrow to the surface of the furrow to form a turtle back shape. When taro seedlings grow to 4-5 leaves 60 cm high, the aboveground parts grow rapidly and taro begins to swell. Combined with topdressing and intertillage weeding, the soil height is 65438+.
7. The lower stems and leaves of the local area become Huang Shi, and can be harvested when the roots wither. Hold the taro tightly with your palms facing each other, rotate it left and right for 2-3 times, and pull it up. Generally, the excavation will be carried out in the middle and late sunny days from 10 to10.
8. There are few pests and diseases on taro. The main diseases are epidemic disease, soft rot, bacterial spot disease, Spodoptera litura, taro moth, taro aphid, red spider, grub and other pests. In this way, timely prevention and control can be achieved.