How to prevent and control soybean root rot? These methods you need to master

1. Choose disease-resistant varieties.

2. Rotate with non-host crops such as corn, foxtail millet, and sweet potato.

3. Apply farmyard manure, potassium fertilizer, phosphate fertilizer, etc. when sowing.

4. Apply metalaxyl granules when sowing so that soybean roots can absorb them to prevent root infection.

5. Before sowing, dress 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 standing water promptly after rain to prevent excessive humidity.

7. When diseased plants are found, pull them out promptly, thoroughly remove the diseased plant residues, and spread quicklime on the planting holes 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% root rot spirit 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% kocide wettable powder 600-fold solution, or 64% sandofan wettable powder 900-fold solution; add any one of the above pesticides to amino acid (such as soybean Jianlibao or Santianlv, etc.) liquid fertilizer 600-fold solution, plus yellow humate 500-fold solution, plus rooting powder 1000-fold solution for spraying. Spray once every 7 days, 2-3 times in succession, alternating use, focusing on spraying the base of the plant's main stem. If the above medicinal solution is used to drench the plant roots, the effect is even better.