In the production in recent years, the dead seedlings in the pepper seedling bed are very serious, affecting the early growth and yield of the pepper seedlings, which brings very serious economic losses to the pepper farmers. What is the cause of the seedling dead seedlings? How to prevent it?
There are three reasons for the death of pepper
One is the infection of pathogenic bacteria in the soil. Pathogen infection is one of the causes of seedling death. For example, Fusarium oxysporum, Rhizoctonia solani, etc. in the soil are susceptible to infection and death of seedlings.
The second is the seed carrier. Seed-borne bacteria are used to sterilize seeds when seeding and seedlings, and provide conditions for the spread of pathogens.
Third, the fertilization of the seedbed is unscientific. In the case of a whole seedbed, a large amount of manure that is not fully decomposed is applied. For example, chicken manure, pigeon manure, sheep manure, pig manure and other livestock manure, release ammonium chloride ions in the process of soil decomposing, causing seedling dwarf, yellow wilting, rotten roots until death.
Control measures for dead seedlings of pepper seedlings
First, the soil is disinfected while the seedbed is being used. It is recommended that 1000 grams of soil treatment agent per acre of seedbed should be mixed with 15 kilograms of fine dry soil. It is also possible to carry out seedbed rotation according to its own situation and reduce the number of pathogens in the soil.
The second is to carry out seed disinfection treatment. Qualified seed and the already coated seeds of the company should be purchased. The seeds selected by the farmers themselves should be sterilized and coated. It is recommended to use a suspension of seed coater of 2.5% flurry nitrile 10 ml, 2 ml of 35% metalaxyl seed dressing, and 3 kg of seed with 180 ml of water.
Third, the fertilization of the seedbed should be scientific. It is necessary to enhance the concept of application of organic fertilizers, eliminate the application of fake and decomposed organic fertilizers, and reduce the spread of pathogenic bacteria in the soil.
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