Three ways to prevent vegetable seedlings

Tomatoes, eggplants, peppers, cucumbers and other vegetable seedlings, seedlings are often easy to seed once after the whole seedlings can be soon after the seedlings out of the Qi, often in the seedling bed down seedlings appear, so that the plan to move The area planted is affected, and vegetable farmers often feel puzzled about this.

According to the survey of multi-site plastic greenhouse seedlings, the symptoms of tomato seedlings and melon vegetable seedlings often appear to be dead in the short term after seedling emergence. There are three main reasons: First, the vegetable seeds with pathogens have not been disinfected. Second, there are soil-borne pathogens in the soil of the seedbed that have not been suppressed or killed; the third is persistent disease caused by low temperatures, rain, and high humidity. Seedlings of eggplant and melon vegetables are generally caused by damping-off, blight, and blight.

Budding disease often occurs before the two true leaves of seedlings. Blight frequently damages the seedlings of eggplant vegetables. Fusarium wilt occurs mostly in the seedling stage of the melon vegetables. These three diseases are most likely to cause the disease of downing vegetables in greenhouses. Generally the same, therefore, in prevention and control methods, prevention should be the main method, and comprehensive prevention and control can be used to obtain effective results.

First of all, to carry out agricultural control, one is to change the seedbed every year, not to re-emerge seedlings every year; Second, the base fertilizer should be applied to a fully decomposed farmhouse to build organic fertilizer to prevent unfamed fertilization with germs; Third, use Huimanfeng or The granule fertilizer formulated by Zhuang Fuxing or enzyme bacteria as base fertilizer can effectively inhibit soil-borne pathogens. Fourthly, the seeds are sterilized. The simplest method is to soak seeds in warm water at 55°C for 10 minutes. Can also be used seed dressing and other seed dressing.

Next, bed soil disinfection can be done with 50% carbendazim WP or 70% thiophanate WP before soil sowing, with 8 grams per square meter for soil treatment; second, 7.5 grams of 3% rice per square metre The leer granules were mixed with fine soil and spread on a seedbed full of lyrics. Deeply turn over 20 centimeters and then sow the soil with a flat bed.

Thirdly, at the early stage of disease prevention and protection of seedlings, a 1:500-fold copper sulphate solution can be used to spray the roots after spraying or planting seedbeds; secondly, 72% Kelu WP can be sprayed with 600-700 times; three can be sprayed; Apply 75% chlorothalonil wettable powder 600 times; 4 spray 70% mancozeb wettable powder 400 times.

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