Summer sowing, before sowing, through seeding, soaking and seed dressing, can increase seed vigor, increase germination potential and emergence rate, and reduce the pests and diseases of seedling stage, so as to achieve Miao Qi, Miao Quan, Miao Zhuang, thereby increasing production. the goal of. The following describes the methods of corn soaking and seed dressing:
First, seed dressing seed dressing
The corn seed coating agent integrates disease prevention, pest control and yield increase, and can control aphids, thrips, underground pests and corn smut. Generally 1 kg of seed coating can be mixed with 50 kg of seeds.
Second, potassium dihydrogen phosphate soaking seeds
Potassium dihydrogen phosphate contains relatively high phosphorus and potassium nutrients, and soaking seeds can increase yield. Take 50 grams of potassium dihydrogen phosphate plus 15 ~ 25 kg of water to form a solution (0.15% ~ 0.2%), soak seeds 10 kg, soak for 10 hours, remove the dried and then sow.
Third, trace element soaking
Soaking seeds with trace elements such as zinc, copper, manganese, boron, molybdenum, etc., not only solves various physiological diseases caused by the lack of trace elements, but also increases yield. Commonly used concentrations of soaking seeds: zinc sulfate 0.1% to 0.2%, copper sulfate 0.01% to 0.05%, boric acid 0.05%, manganese sulfate and ammonium molybdate are about 0.1%. Soaking time is 12 hours.
4. Brassinolide soaking
Brassinolide, also known as brassinolide, is a novel plant growth regulator. Soaking seeds with a solution of 0.3-0.5 mg/kg of brassinolide for 12 hours can increase the germination rate of the seeds and enhance the resistance to stress, increasing yield by 8.5% to 14%. At present, the brassinolide products mainly include Yunda-120.
5. Soaking seeds in biogas slurry
The decomposed biogas fermentation broth contains various nutrients required for crop seeds, such as nitrogen, phosphorus, potassium and trace elements such as iron, magnesium and zinc, and some amino acids and growth hormones. These substances can stimulate the activity of enzymes in seeds, promote blast cell division and stimulate growth. Put the dried corn seeds into a plastic woven bag (only half a bag), so that the seeds are evenly loosened in the bag, and then hanged into the biogas slurry with a rope, soaked for 24 hours, taken out, washed with water and drained. sowing.
Sixth, rare earth seed dressing
Rare earth seed dressing can promote germination and root development, and enhance the ability to resist stress. Mix 4 kg of rare earth 4 g with water and 20 ml of rice vinegar for 1 kg. Mix well with the spray and mix with the mixture.
Seven, biological potassium fertilizer seed dressing
Bio-potassium fertilizer is a kind of biological fertilizer fermented by silicate bacteria, which has the functions of transforming potassium, phosphorus and iron, magnesium and silicon in soil. Generally, 500 grams of water is used per acre of 250 grams of water, and when the fertilizer is turned on, mix well with the corn seeds, and then sown after a little dryness. Bio-potassium seed dressing can significantly enhance the ability to resist drought and fall, reduce the occurrence of diseases and prevent premature aging, and promote the emergence of large grains, increasing yield by 10% to 15%.
Eight, the mature human urine soaking species
Human urine contains various nutrients such as nitrogen, phosphorus and potassium, and the seedlings grow and increase after soaking seeds. Mix human urine and water in equal amounts, soak 10 kg of each 15-20 kg solution, soak for 10 to 12 hours, and remove the dryness. Need to pay attention to soaking seeds, with sowing, can not stay overnight.
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