Leaf spot of Pinellia ternata
In early summer, purple-brown spots appeared on the diseased leaves, and there were many small black spots on the disease spots in the later stage. When the disease was serious, the disease spots covered the whole leaves, causing the leaves to curl and scorch and die.
Methods of prevention and treatment: at the initial stage of the disease, spray 1 Vera 120 times Bordeaux solution or 65% Dyson zinc 500 times solution, once every 7 days for 2 times 3 times.
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What is the annual yield per mu of three kinds of Pinellia ternata?
If Pinellia ternata is propagated with tubers, use hotbed or electric hotbed to promote germination. At the beginning of March, that is, between Rain Water and sting, when the ground temperature of 5cm was stable at 8mur10 degrees Celsius, it could be dug between Grain in Beard and the Summer Solstice in the year of sowing or in mid-June of the following year, without affecting summer sowing autumn crops. Pinellia ternata generally yielded 600,800kg / mu of fresh tubers per mu, with a drying rate of 25%, and dry products of 180kg / mu.
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Skillful treatment of Pinellia ternata seeds
The treatment of the seeds of traditional Chinese medicine before sowing can prevent and control diseases and insect pests, improve the germination rate, and play an important role in Miaoqi, Miaoquan, and Miaozhuang. it is the primary prerequisite for stable and high yield, and generally the yield can be increased by 5% and 20%. The treatment methods of Pinellia ternata seeds are introduced as follows: soaking seeds with 50% carbendazim plus 40% ethyl phosphate aluminum 3 times solution before ① sowing (increasing yield significantly); ② 300x solution vinegar, 50mg / L potassium permanganate, 5% plant ash solution respectively soaking seeds (to prevent root rot).
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