Amorphophallus likes shade and needs timely ploughing Management measures of Konjac

Konjac is a kind of economic crop that likes temperature and shade, cool and afraid of heat. In the process of growth, it is necessary to plough, weed, fertilize, and control diseases and insect pests in time:

Konjac

1. Strengthen ploughing management: Konjac ploughing management should be timely, so that the bottom of the ridge is removed deeply, the surface of the ridge is shallow, and the top of the ridge is not removed, mainly by artificial hoe. At the same time, water should be controlled. As the root system of konjac is underdeveloped and it is not resistant to drought and waterlogging, the drainage and irrigation of water should be controlled well.

two。 Scientific fertilization: give priority to organic fertilizer, increase the application of phosphorus and potash fertilizer, apply 2000ml 3000 kg of organic fertilizer, 30 kg of calcium superphosphate and 15 kg of potassium sulfate per mu before planting, combined with 10 kg of urea and 10 kg of compound fertilizer per mu of cultivated soil; in mid-late August, 10 kg of urea, 15 kg of compound fertilizer and 10 kg of potassium sulfate are applied per mu, and the fertilization method is burrowed or watered 10 cm away from the plant.

3. Timely prevention and control of diseases and insect pests: konjac diseases and insect pests mainly include soft rot, white silk disease, sweet potato armyworm, grub and other pests. Soft rot and white silk disease often occur from July to August. Once they occur, they should be prevented and treated in time. At the beginning of the disease, the soft rot was sprayed with 100ml / mu of thiazone plus 20 million units of agricultural streptomycin 28g / mu with 60kg of water, sprayed once every 7 days, sprayed 3 times in a row, and sprayed around the petiole or irrigated with roots. It can effectively kill the bacteria on the konjac plant. When it is found that there is white silk disease, it is necessary to eradicate and burn the infected konjac in time, and sprinkle a small amount of quicklime in the nest and pond to control the spread, and then use 50% carbendazim 100g or 50ml paclobutrazol per mu. Dysen zinc and other chemical spray has a better control effect; for sweet potato moths, grubs and other insect pests, manual killing is the main method, and most of the time, poisonous ticks and high-efficiency inulin are used.