Soaking seed before sowing can make corn seeds absorb moisture before sowing, improve germination power, and ensure seedlings are fast and neat. 1. Soaking with warm soup: Use 2 pieces of boiling water for 1 serving of cold water, the temperature is about 55°C, soak the corn seeds for 6-12 hours, sowing seeds after sowing. This method can speed up the process of seed water absorption, and can also kill the smut fungus spores attached to the seed surface. 2. Human urine soaking: Use 30% of human urine to soak seeds for 12 hours, or use 50% of human urine to soak seeds for 6 to 8 hours, and remove and dry for a while. This method can accelerate the transformation of seed nutrients and supplement the role of nutrients. According to tests, corn seedlings soaked in urine showed a chlorophyll, seedling, and general yield increase of 5% in the three-leaf stage. 3. Potassium Dihydrogen Phosphate Soaking: Soaking for 8-12 hours with a 500-fold solution of potassium dihydrogen phosphate, 1 to 2 days earlier than when not soaked. In addition, soaking seeds with auxin, ferric aluminate, etc., also has a better effect of increasing production. However, in the above-mentioned method, all the seeds soaked in the shade should be air-dried and not exposed to the sun.
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