15 Ways to Prepare Simple Foliar Fertilizer

Urea solution: the commonly used concentration is 0.5% urea 1% 0.5 kg urea, and 100 kg urea for clear water. The content of diamine in urea is more than 1.5%, which can not be used as foliar fertilizer. Second, urine washing mixture solution: it has two functions of supplying nitrogen and killing aphids. Weigh 0.5 kilogram of urea, 100 kilograms of water, and then dissolve into 70 kilograms of washing powder. Spray with the right pair, do not put it for a long time after matching. Third, the leaching solution of calcium superphosphate: it can supplement phosphorus and control cotton pests. Take 2kg of high-quality powdered calcium superphosphate, add 100kg of water, stir fully, filter after 24 hours, and spray the filtrate. Fourth, potassium dihydrogen phosphate solution: 300g potassium dihydrogen phosphate, spray 100kg of water. Fifth, nitrogen, phosphorus and potassium mixed solution: prepare 100 kg of calcium superphosphate aqueous leaching solution of 2%-3% concentration, adding 0.3-0.5 kg urea and 1-1.5 kg potassium sulfate. 6. Potassium sulfate solution: the common concentration is 1%-1.5%-100 kg water, and 1-1.5 kg potassium sulfate is added. Seventh, plant ash leaching solution: take 5kg of fresh plant ash that has not been drenched in the rain, 100kg of clear water, stir and put for 14 hours, spray the clarification solution. Zinc sulfate solution: take 100g zinc sulfate and add 100kg water. If a small amount of lime solution is added to the prepared zinc sulfate aqueous solution, the foliar spraying effect of zinc fertilizer can be improved. 9. Borax solution: take 200 grams of 300 grams of borax and 100 kilograms of clear water. Because borax dissolves slowly in cold water, you can first use 45 ℃ warm hydration of 4 kilograms, and then 95 kilograms of water. Copper sulfate solution: add 30 to 50 grams of copper sulfate in every 100 kg of clear water. In order to avoid toxicity, a small amount of lime water can be added. 11. Ferrous sulfate solution: ferrous sulfate 200kg 300g, water 100kg. Due to the poor fluidity of iron fertilizer in the leaves, it should be sprayed several times, and should be sprayed evenly and finely, and the front and back of the leaves should be sprayed. Add 50g to 70g washing powder in 100kg iron fertilizer solution, the effect is better. 12. Manganese sulfate solution: take 50 grams of manganese sulfate and spray 100 kilograms of water. Thirteen, ammonium molybdate solution: take 50 grams of 100 grams of ammonium molybdate, add 100 kilograms of water foliar spray. 14. Biogas liquid diluent: biogas liquid is rich in fast nitrogen, the leaves are easy to absorb and the fertilizer effect is rapid. Take 10 kg of biogas filtrate and spray 100 kg of water. Use immediately after matching to avoid nitrogen volatilization. 15. Rare earth micro-fertilizer aqueous solution: foliar spray can increase chlorophyll content and enhance photosynthesis. The range of spraying concentration for crops and fruit trees is 0.08%-0.10%. Add 80ml rare earth micro-fertilizer to every 100 kg of water.