Pea is a common field-type economic crop in life. In the process of pea planting, some diseases will inevitably occur. Root rot is a common type. If it is not timely prevented, it will lead to severe reduction of peas. This article will be for everyone. Introduce the method of controlling pea root rot for your reference.
Peas belong to the bean crop, an annual vine crop, with lavender or white flowers, and the pea fruit is dark green edible. Peas can be grown in any soil, and peas should not be used continuously. Meanwhile, when planting peas should be soaked in saline or with hymexazol, metalaxyl hymexazol, fungicides and other pesticides carbendazim soaking can prevent root rot, blight, blight, gray mold and other Disease.
Pea root rot mainly harms roots and roots and necks. The main and lateral roots became black, the nodules and root hairs were significantly reduced, and the plants were dwarfed. The stems were thin, the leaves were small, the leaves were pale, and the individual branches were wilting. Although they could flower and pod, the number of pods decreased sharply, and the number of pods decreased. At the same time, the base of the stem was contracted and browned, the cortex of the diseased part was rotted, and the plants died in abundance, causing the whole field to be yellow.
The pathogen of pea root rot is Fusarium solani, which can spread through soil, diseased tissues and seeds. The pathogens invade the roots after invading the seed coat or roots, causing the peas to die.
Methods for controlling pea root rot: (1) Strengthen field management. Strictly prevent water accumulation after the rain. In case of drought, the horses should be drunk and not flooded. Apply fully decomposed organic fertilizer, increase the application of phosphorus and potassium fertilizer, and improve the disease resistance of the plant. (2) Select resistant varieties, such as Gongjing, Ma Pea, 604, etc. (3) Rotation with cruciferous vegetables or onion and garlic for more than 3 years. (4) Seed dressing. 30% methyl carbaryl 800-1000 times liquid or 30% carbendazim 600-800 times liquid (5) in the early stage of the disease, 1 carbaryl mold leaves sprayed 1500-2000 times diluted, the effect is The soil is absorbed by the roots and can be moved to the leaf edge, and plays a role, and the effect is lasting. Promote crop growth and increase the yield and quality of agricultural products. 2 Spraying 1200-1500 times of carbendazim, not only can soil disinfection, but also promote plant growth, and can be directly absorbed by plant roots, enter the plant body, and move very quickly. After moving in the root system for only 3 hours, it moved to the stem and moved to the whole body of the plant for 24 hours.
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