Sweet potatoes can not rely solely on formula fertilization

Sweet potato pods will affect the yield of sweet potatoes, so fertilization should be reasonable, not just rely on formula fertilization, China Chemical Fertilizer Net Editor believes that the following aspects to prevent and control.

1. Breeding disease-resistant and high-quality varieties. The main diseases of the heavy pods are root rot and nematode diseases, and the application of disease-resistant varieties is the most effective technical measure.

2. Prevent seedlings from spreading diseases. The disease-free breeding was selected, and the summer sweet potato was bred for planting. When planting, the seedlings were soaked with carbendazim and phoxim solution for 10 minutes to plant disease-free strong pods.

3. Apply organic fertilizers year after year. Organic fertilizer can provide comprehensive nutrients, improve the soil micro-ecology, cultivate a large amount of beneficial microorganisms in the soil, control pathogenic microorganisms, and improve the disease resistance of root rot of potato seedlings.

4. Appoint pesticides to control stem nematodes and underground pests at one time. With phoxim microcapsules, a single acupuncture point can be used when transplanting seedlings, and both stem nematodes and underground pests can be treated.

5. Harvest in time, safe storage. When entering the pit, use triadimefon (triaden) 600-900 times liquid soaking or spray treatment of sweet potatoes, and cure sweet potato storage disease black spot and melanosis.

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