Techniques of Potato Ring Rot
It is a common disease with an area of about 10% all the year round. Potato ring rot pathogen is mainly transmitted by seed potato, it can not survive in the soil, but can be carried on tools, machinery, packing boxes and bags.
Solution: using disease-free seed potato is the most economical and effective control method; sowing whole potato; cutting pieces of seed potato should be strictly sterilized; before sowing disease-free potato pieces, it is necessary to eliminate autogenous plants in the field. and use baskets, boxes and other tools for disinfection; use new bags.
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Ring Rot of Potato and its Control
Ring rot is caused by Corynebacterium ring rot (Corynebacteriumsepedonicum), which can occur in stems and leaves or in tubers. It can continue to cause damage during storage and cause tuber rot in severe cases. In recent years, with the popularization and application of virus-free seed potato, the incidence of ring rot decreased significantly. 1. Symptomatic ring rot is also a vascular bundle disease. Aboveground symptoms generally appear after flowering. The initial symptoms appear in the lower leaves of the plant, showing chlorosis and mottling between the veins.
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Mechanized soil cultivation Technology of Potato
At present, it is in the middle tillage stage of potato planting. In order to guide the production of agricultural machinery, the matters needing attention and fault maintenance of potato mechanization are introduced as follows: first, the adjustment method (take 3ZF-4 as an example) 1. Line spacing adjustment. Line spacing adjustment of type 4 potato ploughing and fertilizing machine: based on the center line of the front crossbeam of the cultivator, loosen the fixing screws on the main beam of the single connection of the two sides of the fertilizing machine, move the single unit of the fertilizing machine, and measure the distance between the two adjacent shovels to the desired ruler.
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