Strawberry is root rot. Reason: When irrigation, the water is too large, drainage is not timely; or lack of light, low temperature, high humidity, soil viscosity is too large, the soil is agglomerated, ventilation is not good; and the root system is caused by the infection of injury and rupture bacteria.
Control methods:
1. Rational rotation, clean the orchard, promptly remove the rickets and diseased bodies in the field, and hymexazol 800 times solution to disinfect the soil; at the same time, it should be used in combination with a large amount of organic fertilizer to deepen the soil and fill enough water. Soil moisture.
2. Scientific fertilization, soil fertilization is the basis for the normal growth of strawberries, high quality and high yield. Therefore, fertilizer should master “multiple application of organic fertilizer, appropriate amount of nitrogen fertilizer, increased application of phosphorus and potassium fertilizers, and good foliar fertilizer†to promote robust growth of strawberries, thereby stimulating strawberries. Its ability to resist root rot.
3, pharmaceutical control, strawberry root rot should be the main prevention, in the nursery with potassium permanganate 2-4 grams per square meter for spray. Before and after transplanting, potassium permanganate was diluted 1500 times and 200 ml per plant was used to irrigate roots. Adopted in adult plant
600-800 times the amount of hymexazol or 800-1000 times the amount of mesylate hyaluronid Irrigation.
4, high ridge plastic film cultivation, strengthen field management, rational fertilization, scientific irrigation, and in the strawberry flowering, young fruit period, the expansion of time to spray pesticides.
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