Causes and prevention of rotten melons

Melons are prone to rotten fruit after planting, sometimes growers do not know what reason, management is no problem, melons are rotten, most people think that melons absorb too much after rain and stagnant water, soaking rotten, but in fact, there are many specific reasons, not just this one, so today I will mainly introduce to you the detailed reasons for rotten melons, as well as how to prevent rotten melons.

First, reasons

Infected with bacteria, cause disease, and then will rot melon, the main cause of rot disease is bacterial corner spot, rot disease. These germs can be transmitted through soil, seeds and insects, and the germs on diseased remains can be spread by Rain Water splashing and insects; sometimes applying more potash and nitrogen fertilizer will inhibit the absorption of changes, and lack of calcium will cause rotten melons; improper management, sometimes planting is too dense, field humidity is too high, seeds and seedlings are not disinfected, malnourished growth is weak, disease resistance decreases, it is easy to rot melons.

II. Preventive measures

1. Disinfection

Sowing seeds to soak seeds, soaking solution, purchased seedlings should be sprayed with carbendazim to prevent carrying bacteria, and then the seedling tray, culture medium or nursery bed all need to be disinfected, you can first bask in the sun, and you need to spray fungicides such as chlorothalonil. It is necessary to clean up the sick and disabled bodies in time, and after harvest, do not leave sick and disabled bodies in the field, but to clear the garden.

two。 Fertilizer application

Rational fertilization, the combined use of nitrogen, phosphorus and potassium, in the early stage to control some nitrogen fertilizer, do not let the plant grow, and do not use too much nitrogen and potassium fertilizer, affect calcium absorption, can reduce nitrogen and potassium fertilizer appropriately. The use of nitrogen fertilizer will be reduced a lot in the later stage of growth, but more potash fertilizer is needed in the later stage, so it can be controlled in the later stage and apply more potash fertilizer in the middle stage.

3. Strengthen management

Melons are generally planted on flat land, so they should be planted sparsely, not too dense, and the field humidity will be lower, not providing space for the growth of pathogens; then it is necessary to apply fertilizer reasonably and topdressing according to the fertilizer characteristics of melons in each period. can not be short of fertilizer, or planted in barren land. 、

Melon rotten melon is mainly caused by diseases, but some environmental factors are not coordinated, which will create conditions for the growth and reproduction of pathogens. Melon rotten melon diseases most like the environmental conditions of high temperature and high humidity. Therefore, prevention should start from environmental factors.