How to plant and manage Pinellia ternata

First, land preparation. It is mainly sandy or semi-sandy soil, followed by other soils, with good drainage and watering conditions. Land that is too sandy or sticky is not suitable for planting. In the field operation, the border should be controlled at a width of 1.5 meters and should not be too wide. Double rows of corn should be planted on the ridge before and after May 1 to facilitate drought and shade of Pinellia ternata. Planted under the forest, except for fruit trees, and grow well, regardless of spring sowing or autumn planting, it is necessary to prepare the land in advance, apply sufficient base fertilizer, and the cultivated land should not be too deep. Second, sow seeds. According to the row spacing of 15cm ~ 20cm, open a small trench with a depth of 3cm ~ 4cm, spread the seed bulb evenly in the ditch, plant spacing 2cm ~ 6cm, cover soil 1cm ~ 2cm, and then flatten it. It can be watered in drought, and the temperature is controlled at 18 ℃ ~ 20 cm. Generally, seedlings emerge one after another in 12 ~ 15 days. Third, field management. Dry Pinellia ternata has the phenomenon of emergence and falling seedlings 2 ~ 3 times a year, and new seedlings will grow again a few days after falling seedlings, which is a normal phenomenon of reproduction. Pull up the grass as much as possible during the period of falling seedlings. After falling seedlings, if the land is dry, it can be watered in time, which is conducive to seedling emergence. When the seedlings are normal, apply nitrogen, phosphorus and potassium fertilizer, 20 kg ~ 25 kg per mu, be careful not to stick to the leaves. The corn on the ridge of the field is managed according to the routine, and the trees are also managed according to the conventional management. Rain Water should pay attention to drainage when there are too many, and do not accumulate water in the border for a long time. When there is scape, it can be cut off to concentrate nutrients on the underground tuber to increase yield.