1, planting method Planting technology: Generally, before winter, under the premise of not disturbing the soil layer, the soil should be deeply ploughed by 75~85 cm, and the iron stick yam should be deeply ploughed by 35~45 cm. When preparing soil in spring, 450kg of high-quality decomposed farm manure, 95kg of decomposed cake fertilizer and 45kg of high-quality nitrogen and potassium ternary compound fertilizer were applied to every 667m2 of land, and then the soil preparation began.

2. Ditching planting: In general, the row spacing of planting iron stick yam is 85cm, the ditch depth is between 80 ~ 120cm, and the ridge is about 33cm. Set a line before ditching, and then spread fertilizer on this line. 100 kilograms of high-quality dry chicken manure, 50 kilograms of compound fertilizer and 30 kilograms of potassium sulfate should be applied to each mu of land.

3. Sowing in time: planting can be carried out when the ground temperature is kept at about 10 degrees Celsius, usually in the middle and late April of each year. Plant 7000 ~ 8000 plants per mu, with the row spacing of l0 times 70cm. After sowing, cover with 3-5 cm soil. After planting, several drainage ditches should be dug around to communicate with the outer ditch. Ditching planting is particularly important. In order to improve the yield and quality of iron stick yam, it is necessary to ensure smooth drainage in rainy season.

4. Field management scaffolding: Only scaffolding can make the iron stick yam fully ventilated, which can not only increase the yield but also reduce the harm of pests and diseases. Under normal circumstances, after the tender seedlings are unearthed, they can be tied up and erected. The height of the pole should be kept at about one and a half meters. Each plant should be tied up with a pole and tied up about one meter from the ground.

5. Weeding and watering: Weeding should be done in time after the seedlings are unearthed. If weeds are not cleared in time, they will compete with iron yam for nutrition. Shallow hoes can be used in the early stage, and manual weeding will be used in the later stage. Before planting, soil moisture should be watered once, and after planting, if the soil moisture is insufficient, water can be replenished to ensure the normal emergence of yam. After the yam is completely covered, it should be watered in combination with topdressing. Before beginning of autumn, it was necessary to water less and less to promote the root knot. In mid-August, it is beneficial to the expansion of iron stick yam. Sprinkling irrigation should be used for furrow sowing to prevent furrow collapse.

6. Insect pests: Generally, most of the pests and diseases that infringe on iron stick yam are grubs and grubs. They will drill many holes in the underground tuber of yam, and sometimes they will sleep in the tuber. Poisoning with drugs and stomach drugs.