What month was yam planted?

Plant in the middle and late March every year. Harvest in June, 65438+ 10, flowering in June-August, and bearing fruit in August-65438+10.

After the yam cultivation ditch was filled with fertilizer, the ditch was made into a flat bed with a width of about 1 m. When planting, open a planting ditch with a depth of about 10 cm in the middle of the flat border, and then water it.

Post-planting management 1. Scaffolding: The stems on the ground of yam are tender, so the vines should be supported in time after emergence. According to the right-handed characteristics of yam stems, the tendrils spiral upward, and the height of the frame is about 1 m. If there are too many lateral branches at the base of the main vine, they can also be removed appropriately to facilitate ventilation and light transmission. When a large number of "yam bean" are formed in the axils of leaves, a part can be removed as soon as possible to save nutrition.

2. Tillage and soil cultivation: In the early stage of growth, intertillage weeding is adopted in Qin Ying, generally half a month 1 time, until the stems and vines grow to half a shelf, and then weeds are pulled out. It is necessary to dig out part of the soil between the rows outside the frame and fill it in the rows inside the frame, so that high ridges are formed inside the frame, and furrows with a depth of 20 cm and a width of 30 cm are formed between the rows outside the frame, which is convenient for drainage in rainy season.

3. Timely chemical control: Paclobutrazol can obviously inhibit the growth of aerial parts of Chinese yam, and can inhibit the occurrence of laiji, so that the yield of Chinese yam can be increased by more than 10%. The best time to spray paclobutrazol is when the vines of yam are full. When the bud first blooms, 60-70g of 15% paclobutrazol wettable powder per mu is mixed with 50kg of water and sprayed evenly. Weedy fields can be sprayed twice every 7- 10 days.

4. Rational topdressing: topdressing L times when the stems and vines are on the first half of the frame, and topdressing 25-35 kilograms of high-concentration compound fertilizer per mu. Or 20 ~ 30 cm away from the plant, furrowing and applying 500 ~ 1000 kg of decomposed organic fertilizer. Water after fertilization. In the future, when the stems and vines are full, if there is a phenomenon of yellow thinning, urea 10kg/ mu can be topdressing. Combined with disease prevention and insect prevention in the late growth stage, spraying 0.3% potassium dihydrogen phosphate solution outside the roots for 2-3 times to protect the leaves and prevent aging. ?

Timely harvest

After the first frost, the stems and leaves on the ground gradually turn yellow, and the underground tubers enter a dormant state, which can be harvested, sold or stored in a vegetable cellar. You can also cultivate soil on the planting bed to prevent freezing and keep it in the field when you use it.

References:

Cultivation techniques of yam-Baidu Encyclopedia