How to Treat Wheat with Dry Tips and Yellow Leaves for Good Results
Wheat may encounter dry tips and yellow leaves during its growing period, so how should wheat with dry tips and yellow leaves be treated? In fact, the treatment methods for wheat with dry tips and yellow leaves caused by different reasons are also different:
1. Pests and diseases
Spider mites, root rot, take-all disease, sheath blight, and others can all cause dry tips and yellow leaves in wheat. For wheat with dry tips and yellow leaves caused by pests and diseases, spraying a root-promoting agent + hymexazol and metalaxyl + brassin + foliar fertilizer can be used to prevent pest damage; generally, spraying the agent once every 5-7 days is sufficient.
2. Fertilizer deficiency, drought
If the soil fertility in the field is insufficient, a shortage of major nutrient elements such as nitrogen fertilizer and potassium fertilizer, or trace elements such as calcium, molybdenum, copper, and zinc can cause yellowing and dry tips in wheat. At the same time, drought can also cause dry tips and yellow leaves in wheat. Fertilization and watering should be carried out according to the actual situation.
3. Insufficient heat preservation
After corn straw is returned to the field, the soil becomes loose; if the land is not compacted and heat preservation is insufficient, wheat dry tips and yellow leaves can result. If this is the cause, timely remedial measures should be taken, and field management should be strengthened when planting the following year.
Specific chemical spray control methods for wheat root rot and sheath blight:
1. 85% kresoxim-methyl · oxime wettable powder 750 times liquid + 15.5% jinggangmycin · triadimefon aqueous solution 750 times liquid + 55% “Angen” brand amino acid water-soluble fertilizer 750 times liquid;
2. 50% chloroisobromine cyanuric acid wettable powder 750 times liquid + 25.9% copper complex · zinc complex · copper citrate aqueous solution 750 times liquid + 0.255% gibberellic acid · ethephon · brassin wettable powder 750 times liquid;
3. 30% metalaxyl · hymexazol aqueous solution 2000 times liquid + 20% copper abietate aqueous solution 2000 times liquid + 10% Xiduoshou aqueous solution 750 times liquid;
4. 58% refined metalaxyl · mancozeb water-dispersible granules 600 times liquid + 80% tebuconazole wettable powder 3750 times liquid + 1.8% sodium nitrophenolate aqueous solution 4000 times liquid.