Radish anti-hollow application of boron fertilizer
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, then apply it as a base fertilizer into 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.
Seed dressing
Add 3 to 5 kg of fine soil and add 300 mg of boric acid per acre or 500 g of borax to mix the boron fertilizer into a thin paste. Then pour the radish seeds and some dry fine soil into the hand. The soil containing the boron fertilizer is adhered to the surface of the seed to prepare a seed coat, and the seed can be separated from the seed to be used for seeding.
Foliar spray
Boron fertilizer can promote the radish heart. From the radish seedlings grow 2 to 3 true leaves from the beginning of the harvest 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 dissolved 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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