Radish black heart disease cause

Radish cultivation, the root epidermis often appears horizontal filamentous black lines, severe internal discoloration, deterioration, commonly known as black heart disease, the main reason is the lack of soil boron, chloride ions; high groundwater level, poor drainage; inadequate application Decomposed fertilizers. Therefore, we should avoid planting on low-lying land; we should not apply or reduce the use of chlorinated fertilizers and increase the application of boron fertilizer. Borax 1 kg can be applied per acre as a base fertilizer, and then 0.5%~1% borax solution is sprayed on the foliage for 2~3 times during the growing season.

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