What are the control methods for soybean root rot?
How should soybean root rot be controlled? What is the best method? Soybean root rot can be controlled with the following methods: 1. Choose disease-resistant varieties. 2. Rotate with non-host crops such as corn, foxtail millet, and sweet potato. 3. When sowing, apply more farmyard manure, potassium fertilizer, phosphorus fertilizer, etc. 4. When sowing, apply metalaxyl granules...
How should soybean root rot be controlled? What is the best method?
Soybean root rot can be controlled with the following methods:
1. Choose disease-resistant varieties.
2. Rotate with non-host crops such as corn, foxtail millet, and sweet potato.
3. When sowing, apply more farmyard manure, potassium fertilizer, phosphorus fertilizer, etc.
4. When sowing, apply metalaxyl granules so that soybean roots can absorb them to prevent root infection.
5. Before sowing, treat seeds with 35% metalaxyl powder at 0.3% of seed weight.
6. Strengthen field management, carry out timely deep plowing and intertillage hilling and weeding, and drain accumulated water promptly after rain to prevent excessive humidity.
7. When diseased plants are found, pull them out promptly, thoroughly remove diseased plant residues, and spread quicklime on the planting holes of diseased plants and around them for disinfection.
8. Once this disease occurs, it is very difficult to cure, so prevention should be the main approach. For prevention, you can choose 40% Genfuling 400-fold solution, or 70% thiophanate-methyl wettable powder 1000-fold solution, or 58% ridomil wettable powder 600-fold solution, or 50% carbendazim wettable powder 400-fold solution, or 75% chlorothalonil wettable powder 600-fold solution, or 77% Keshade wettable powder 600-fold solution, or 64% sandofan wettable powder 900-fold solution; any one of the above pesticides plus amino acid (such as soybean Jianlibao or Santianlv, etc.) liquid fertilizer 600-fold solution, plus fulvic acid salt 500-fold solution, plus rooting powder 1000-fold solution for spraying. Spray once every 7 days, for 2-3 consecutive sprays, using them alternately, focusing on spraying the base of the main stem of the plants. If the above medicinal solution is used to drench the roots of the plants, the effect is even better.
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