What are the causes of konjac disease? How to prevent konjac disease?
Konjac can also be called sputum, with horizontal blood sugar lowering, blood fat reduction, blood pressure reduction, loose poison, beauty, Tongmai, weight loss, laxative, appetizing and other versatility, in textile, printing and dyeing, makeup, ceramics, fire, environmental protection, military There are a wide range of uses in oil exploitation, and the following is a small series of reasons for the disease caused by konjac and ways to prevent konjac disease. 1 reason 1.1 Changes in ecological conditions 1) Large-scale planting and high plant density make the konjac disease population rise to the main pest population, causing serious occurrence of konjac disease. 2) After planting konjac in Daejeon, in order to build shading equipment, the temperature in the field rises, the activity of pathogens intensifies, and the probability of plant susceptibility increases. 1.2 kinds of poor quality 1) When seeding, no seed picking is selected, or the seed is selected from the seriously ill plot, or the seedling is not graded, or the good seed and the disease are mixed, resulting in serious disease. 2) When transplanting from a foreign country, the improper method of long-distance transfer causes serious damage to the konjac, resulting in serious diseases. 3) The seedlings were not disinfected at the time of sowing, and the seedlings were affected by the bacteria, or they died after emergence. 1.3 Soil is not sterilized The pathogens remaining in the soil spread with the water in the soil and gradually spread to the whole plant, causing the konjac to fall and die. 1.4 Improper planting measures 1) Tongtian continuous cropping: It often causes a soft rot pandemic, especially in the continuous planting of waterlogged land, low-lying fields and mountainous areas. 2) Poor management: the roots of the cultivating injury and the konjac roots, the irrigation and drainage are not timely, and the grass or shading treatment is not carried out during the hot and dry season. 3) Improper fertilization: re-application of nitrogen fertilizer, less application of Phosphate fertilizer, potassium fertilizer, resulting in greatly reduced resistance of konjac disease resistance. 1.5 Ineffective measures 1) The planter's awareness of disease prevention is weak, or remedial measures are taken after the onset of the disease, and the prevention and treatment effect is not good. 2) The types of pesticides for preventing konjac diseases are few and the effects are poor. 2 Prevention measures 2.1 Creating an environment suitable for konjac growth As an intercropping and intercropping, it provides an environment suitable for konjac growth. 2.2 Strictly control the species Select the seedlings, be careful when transporting, disinfection before planting, to avoid damage to axillary buds, affecting emergence. 2.3 Scientific planting When planting, choose small cultivating or high ridge cultivation, which is beneficial to drainage management; The soil should be disinfected before planting and can be disinfected with lime; Finely plowing the plots before planting to remove residues from the soil; When planting, use the method of rotation. 2.4 Timely rotation Generally, it is forbidden to rotate with crops such as eggplant, flue-cured tobacco and pepper for three years. It is necessary to strengthen management during planting, shallow cultivating, and timely drainage; In high temperature and dry weather, it is necessary to carry out the grass cover; Can grow corn and other high stalk crop shading; Scientific fertilization, the ratio of fertilization is: potassium: nitrogen: phosphorus = 8:6:1. 2.5 Strengthen disease prevention During the leaf stage of konjac, the pesticides with better effect are sprayed 3-5 times every 10 days for disease prevention and control. Calcium Hydroxide,Slaked Lime,Hydrated Lime,Food Grade Calcium Hydroxide Wuxi Yangshan Biochemical Co.,Ltd. , https://www.yangshanchem.com
