During the flowering period of soybeans, 25-50 grams of ammonium molybdate per acre and 50-75 kilograms of water are used to make a fertilizer solution, sprayed once every 7-10 days, and sprayed successively 2-3 times for soybean leaves. The surface is evenly sprayed, and the leaf surface is wet. If foliar fertilizer and phosphorus fertilizer solution mixed with foliar spray, the effect is better. Phosphorus fertilizer is best to use ammonium phosphate, in the ammonium molybdate fertilizer solution sprayed per acre of 25-30 grams of ammonium phosphate, mixed with water dissolved, you can spray. If you use superphosphate, use 1000 grams per acre, water 5 kg, soak a day and night, take the filtered phosphoric acid solution, add ammonium molybdate fertilizer solution sprayed per acre, mix and spray.
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