The reason for the hollow carrot: mainly due to the lack of boron in the soil.
Carrot hollow prevention measures:
First, seed dressing: use light-weight non-toxic fertilizer seed dressing, each bottle of mother liquid is generally diluted 5-10 kg of liquid, soaked seeds can be removed and dried. It can keep warm, moisturize and swell, improve the germination rate of seeds and make the seedlings strong. Repel underground pests and isolate viral infections. It can also be mixed with a seed coating.
Second, foliar application of boron: boron fertilizer can promote the radish heart is a big. From the radish seedlings, 2 to 3 true leaves are grown to about half a month before harvesting, and boron fertilizer is sprayed once every 20 days. The spraying time is appropriate in the evening.
Third, as the base fertilizer: the base fertilizer is applied to the seed ditch or seed hole. The radish seeds can also be mixed into the dry fine soil mixed with boron fertilizer, and thoroughly mixed and sprinkled into the seed ditch and the seed hole.
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