First, urea solution: commonly used concentrations of 0.5% to 1%, 0.5 to 1 kg of urea, 100 kg of clean water. Diamine content of urea toxic substances more than 1.5%, can not be used for foliar fertilizer. Second, urine washing mixture solution: with nitrogen supply, eliminate the two effects. Weigh 0.5 to 1 kg of urea, 100 kg of water, and then dissolve 70 to 100 grams of detergent. With the spray, do not put long after the match. Third, superphosphate leaching solution: with phosphorus and cotton pest control role. Take high-quality powdery superphosphate 2 ~ 3 kg, add 100 kg of water, stir well, place it for 24 hours, filter, and take the filtrate foliar spray. Fourth, potassium dihydrogen phosphate solution: 300 grams of potassium dihydrogen phosphate, spraying 100 kilograms of water. Fifth, NPK mixed solution: preparation of 2% to 3% concentration of calcium superphosphate water leachate 100 kilograms, adding urea 0.3 to 0.5 kilograms and potassium sulfate 1 to 1.5 kilograms. 6. Potassium sulfate solution: The commonly used concentration is 1% to 1.5%, 100 kg of water, and 1 to 1.5 kg of potassium sulfate is added. Seven, ash leaching of plants: Take fresh grass ash without rain 5 to 7 kg, 100 kg of fresh water, stirring for 14 hours, take clear liquid spray. Eight, zinc sulfate solution: take 100 to 200 grams of zinc sulfate, add 100 kg of water. If a small amount of lime aqueous solution is added to the prepared zinc sulfate aqueous solution, the foliar spraying effect of the zinc fertilizer can be improved. Nine, borax solution: take 200 to 300 grams of borax, 100 kg of clear water. Due to the slow dissolution of borax in cold water, it can be first opened with 4 to 5 kg of warm water at 45°C, and then 95 to 96 kg of water can be used. Ten, copper sulfate solution: For every 100 kilograms of clean water, add 30-50 grams of copper sulfate. To avoid poisoning, add a small amount of lime water. Eleventh, ferrous sulfate solution: take ferrous sulfate 200 to 300 grams, 100 kg of water. Because iron fertilizer has poor fluidity in the leaves, it should be applied several times and should be sprayed evenly and finely sprayed. The front and back sides of the leaves must be sprayed. Adding 50 to 70 grams of detergent powder to 100 kg iron fertilizer solution works better. Twelve, manganese sulfate solution: Take 50 ~ 100 grams of manganese sulfate, 100 kg of water spray. Thirteen, ammonium molybdate solution: take 50 ~ 100 grams of ammonium molybdate, add 100 kg of leaf spray. XIV. Biogas Liquid Diluent: Biogas slurry is rich in nitrogen, and leaves are easy to absorb. The effect of fertilizer is rapid. Take 10 kg of biogas slurry and spray 100 kg of water. Immediately after use to avoid nitrogen evaporation. Fifteenth, rare earth fertilizer solution: foliar spray, can increase chlorophyll content and enhance photosynthesis. The spray concentration of crops and fruit trees ranges from 0.08% to 0.10%. For every 100 kilograms of clear water, 80 to 100 ml of rare earth microelement fertilizer can be added. Fern Rhizome,Rhizome Plants,Ginger Rhizome,Roots And Rhizomes Henan Qiancuntang medicial technology co.ltd. , https://www.qctchineseherb.com