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Views: 0 Author: Site Editor Publish Time: 2022-06-08 Origin: Site
Land selection and preparation
It is better to plant in sandy loam or loam with moist and fertile soil, strong water and fertility retention, loose texture, good drainage and irrigation, and neutral reaction, or in gentle slope mountain with half shade and half sunshine. To plant Pinellia ternata in plain areas, it is necessary to select plots with high terrain that can be irrigated and drained. Drainage ditches must be dug before planting. After selecting the land, dig the land about 20cm deep from October to November, remove the gravel and weeds, and make it weathered and matured.
Field management
When the emergence rate reaches about 50%, the mulch film shall be removed to prevent the temperature inside the film from
burning the seedlings too high. Before removing the film, remove the ventilation and heat dissipation from both ends of the car at noon, seal it in the evening, refine the seedlings for several days, and then remove them all. Remove weeds in the field at any time by loosening the soil after emergence. After removing the film, the ground shall be watered and loosened in time to preserve moisture. There is much water needed during the expansion period of Pearl buds, so the soil should be kept moist and loose. Ponding shall be removed in rainy season.
It is necessary to cultivate soil for the growth of Pearl buds. From June to August, mature pearl buds and seeds fall on the ground one after another. At this time, it is necessary to cultivate soil and apply fertilizer twice. All the flower buds grown in the growth period are removed to promote the growth and hypertrophy of tubers, so as to improve the yield. In November, after Pinellia ternata withered, the aboveground stems and leaves and the dropped pearl buds were collected, in which the Pearl film was spread on the surface of the high border.
Pest control
White star disease: it occurs from April to May. At the initial stage of the disease, it can be sprayed with 500 times of 50% methyltobuzin wettable powder, 500~1000 times of 50% carbendazim wettable powder, or 500 times of 50% rujunte wettable powder. It can be sprayed every 7~10 days for 2~3 times in total.
Leaf spot disease: spray 1:1:120 Bordeaux solution or 65% zineb 500 times solution, or 50% carbendazim 800~1000 times solution, or methyl tobuzin 1000 times solution at the initial stage of the disease. Spray once every 7~10 days for 2~3 consecutive times; Or spray with 1kg garlic and 20~25kg water; At the same time, the diseased plants were uprooted and burned.
Control of red sky moth: spray with 90% crystal trichlorfon 800~1000 times, once every 5~7d, and continuously spray for 2~3 times.
Pinellia ternata is widely distributed all over the country except in Inner Mongolia, Xinjiang, Qinghai and Tibet. It grows below 2500 meters above sea level and is common in grass slopes, wasteland, corn fields, fields or under sparse forests. It is one of the weeds in dry lands. North Korea and Japan also have.
