Wheat soil-borne diseases mainly include wheat root rot, wheat sheath blight, and wheat full-bleeding disease. Because the site of its disease is mainly concentrated in the base of the roots and stems, it is more subtle, and the pathogens are harmful to the underground parts. The symptoms are reflected in the aboveground parts. The mild disease symptoms are not obvious at the seedling stage. In severe cases, the seedlings appear dwarf, the leaves are light, and the bottom leaves are yellow. Like the symptoms of lack of fertilizer, the people are not easy to notice. When the "white spike" appeared in the later period, they noticed that it brought certain difficulties to prevention and treatment. After standing through many tests, I summarized a set of methods to control the three diseases of wheat. : Chemical seed dressing. The seed dressing is simple and practical, easy to operate, effective and safe. The specific methods are: prevention and treatment of wheat full-etching disease mu 12.5% ​​full-etching net 20 ml, severe disease field mu dosage 30 ml. When dressing, 20 ml of water is added to 500 ml of water. Mix evenly and mix thoroughly with 10 kg of wheat seed. Mix well and smolder for 6 hours. The control of wheat root rot and sheath blight can be achieved with 25% triadimefon wettable powder, 0.1% seed weight seed dressing or 50% carbendazim seed oil 0.2% -0.3% seed dressing, after mixing nausea 6 hours Can sow. Strengthen cultivation and management to promote the growth of wheat. The use of reasonable fertilizer and water measures, multiple basal fertilizers, play a role in the prevention of organic fertilizers, the manure of diseased residues should be fully decomposed. Appropriate chemical fertilizers, avoid excessive application of nitrogen fertilizer, increase phosphorus, potassium fertilizer. Wheat root rot occurs in severe plots, pay attention to supplement zinc fertilizer. Fields should be kept ventilated and light-transmitting, avoiding dampness, and creating conditions for the development of unfavorable diseases. Early spring prevention and treatment. Wheat tillering, jointing period mu 50% carbendazim WP 300-500 times or 15% triadimefon 80-100 grams water 50 kg pull out the sprinkler irrigation roots.
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