What is the cause of the radish hollow in winter? The reason for the radish hollow is mainly caused by the lack of boron in the soil. The following method can be used to apply boron fertilizer to prevent radish hollow:
As the base fertilizer, when planting, use 17% boric acid 300g or 11% borax 500g, mix it into 5~10kg of dry fine soil, mix well and then sieve it, then apply it as a base fertilizer or seed In the 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.
Seed dressing, add 3 to 5 kg of fine soil with water and mix the boron fertilizer with 300 g of boric acid per acre or 500 g of borax, stir together into a thin paste, and then pour the radish seeds and some dry fine soil. The soil containing the boron fertilizer is adhered to the surface of the seed by hand to make a seed coat, and the seed can be separated from the seed to be used for seeding.
Boron application of boron, boron fertilizer can promote the radish heart is a big. From the radish seedlings grow 2 to 3 true leaves to about half a month before harvest, spray boron fertilizer once every 20 days, 150 grams of borax or 100 grams of boric acid per acre, first dissolve with a small amount of warm water, It is sprayed evenly with water of 60-75 kg, and the spraying time is suitable for evening.
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