I. A complete set of foliar fertilizer formulation technology
Foliar fertilizer is a fertilizer that directly applies the nutrients required by crops to the foliar surface for the purpose of foliar absorption. There are many types. Here are some commonly used foliar fertilizer formulas:
1. Urea solution: The usual concentration is 0.5% to 1%, that is, 0.5 to 1 kg of urea and 100 kg of water are used. Urea with a biuret content of more than 1.5% cannot be used as a foliar fertilizer.
2. Urine washing mixture solution: It has two functions of nitrogen supply and aphid eradication. Remove 0.5 to 1 kg of urea, add 100 kg of water, and then dissolve 70 to 100 grams of washing powder. It can be mixed with the spray, and can not be stored for a long time after mixing.
3. Biogas slurry dilution: Biogas slurry is rich in available nitrogen, easily absorbed by leaves, and has a fast fertilizer effect. Take 10 kg of filtered biogas slurry, add 100 kg of water and spray. Use immediately after preparation to avoid nitrogen volatilization.
4. Potassium dihydrogen phosphate solution: 300 grams of potassium dihydrogen phosphate plus 100 kg of water to spray.
5. Potassium sulfate solution: The usual concentration is 1% to 1.5%, and 1 to 1.5 kg of potassium sulfate is added to 100 kg of water.
6. Plant ash leaching solution: take 5-7 kg of fresh plant ash, add 100 kg of water, stir and leave for 14 hours, then take the clear liquid for spraying.
7. Superphosphate leaching solution: it can supplement phosphorus and control cotton pests. Take 2 to 3 kg of superphosphate, add 100 kg of water, stir well, place it for 24 hours, filter, and remove the filtrate and spray.
8. Mixed solution of nitrogen, phosphorus and potassium: prepare 100 kg of superphosphate leaching solution with a concentration of 2% to 3%, and then add 0.3 to 0.5 kg of urea and 1 to 1.5 kg of potassium sulfate.
9. Ferrous sulfate solution: take 200-300 grams of ferrous sulfate and add 100 kg of water. Due to the poor fluidity of iron fertilizer in the leaves, it should be sprayed several times, and sprayed evenly and finely, and the front and back of the leaves should be sprayed. Adding 50-70 grams of washing powder to 100 kilograms of iron fertilizer aqueous solution is better.
10. Aqueous solution of rare earth micro-fertilizer: foliar spray can increase chlorophyll content and enhance photosynthesis. The spray concentration is 0.08% to 0.1%. Add 80 to 100 ml of rare earth micro-fertilizer per 100 kg of water.
11. Zinc sulfate solution: take 100-200 grams of zinc sulfate and add 100 kg of water. If a small amount of lime water is added to the prepared zinc sulfate aqueous solution, the effect of zinc fertilizer spraying can be improved.
12. Borax solution: take 200-300 grams of borax and add 100 kilograms of water. Because borax dissolves slowly in cold water, it can be dissolved in 4-5 kg of 45 ℃ warm water first, and then add 95-96 kg of water.
13. Manganese sulfate solution: take 50-100 grams of manganese sulfate, add 100 kg of water and spray.
14. Ammonium molybdate solution: take 50-100 grams of ammonium molybdate, add 100 kilograms of water and spray on foliage.
Second, the formula and production method of amino acid foliar fertilizer
The effect of amino acid foliar fertilizer is better, in addition to direct purchase, you can also make it yourself. Generally, it is made by using a cement pool or a large tank, adjusting the air, temperature, and moisture, and performing artificial accumulation and fermentation.
Recipe:
100kg soybean flour (12% water content), 1kg microbial fermentation agent, 48kg sweet and sour water (5% of brown sugar water and 3% rice vinegar).
Practice:
1. Prepare the cement pool or large tank required for fermentation.
2. Mix 100 kilograms of soybean powder with 1 kilogram of microbial fermentation inoculum, and be sure to stir evenly. This process can be called inoculum inoculation.
3. Add sweet and sour water to the soybean powder inoculated with the bacterial agent, and adjust the moisture content of the soybean powder to 55-60%.
4. Put the soybean flour material with the adjusted moisture content for 12 hours naturally.
5. Move the naturally placed materials to be fermented to a cement pool or a large vat for accumulation and fermentation. In order to ensure ventilation, it is better that the accumulation thickness should not exceed 50cm. After the accumulation is over, cover it with gauze or plastic cloth, and pay attention to keeping warm, moisturizing and cleaning.
6. After the fermentation begins, the fermentation temperature for 7 to 10 days should be kept above 20-25 °C. When the cumulative fermentation temperature reaches 300-400 °C, it can be turned over once, and immediately cover it after turning over. When the accumulated fermentation temperature reaches above 600°C (20-25 days), the fermentation material becomes lumps and the odor disappears. You can stop the fermentation, turn the fermentation material in time, and let it dry for a day (water content is 40 -45%).
7. Move the dried fermented material to a container and soak it in 5% brown sugar water to extract amino acid water. The soaking ratio is 1 kg of soybean powder and 5 kg of 5% brown sugar water. The soaking time is 5-15 days. When the soaking is finished (no odor, the liquid is dark brown), the amino acid water should be extracted with a vacuum pump in time, packaged well, and stored in a cool and dry place. You can keep it there.
