How to apply foliar fertilizer to peanuts

How to spray foliar fertilizer on peanuts? Please guide peanut foliar fertilization has the effect of high fertilizer absorption and utilization, saving fertilizer and increasing production. With foliar application of nitrogen fertilizer, the absorption and utilization rate of peanut plants reached more than 55.5%, the number of full fruits increased significantly, and the economic coefficient increased significantly; foliar application of phosphate fertilizer could generally increase the yield by 7%, 10%; and foliar application of micro-fertilizers such as aluminum, boron, manganese and iron could increase the yield by 8%. A large number of elements such as nitrogen, phosphorus, potassium, calcium and trace elements such as molybdenum, boron, manganese and iron can be applied to leaves. (1) the urea 1kg is obtained by foliar application of nitrogen fertilizer, and the urea aqueous solution dissolved to 1% is fully stirred with clear water 100kg; if there is a phenomenon of de-fertilization in the middle and later stages of peanut growth, or if there is continuous rainfall during the peanut growing period, the soil is stagnant, and it is difficult for the roots to absorb nutrients, it can be sprayed with 60kg urea aqueous solution per mu. (2) the foliar application of phosphate fertilizer on peanuts has a strong ability to absorb phosphorus. Spraying 2% of 3% calcium superphosphate aqueous solution in the middle and later stages of growth can increase the rate of photosynthate transporting to pods and increase pod yield. The specific method is as follows: put 2-3kg superphosphate in 100kg clear water, stir and soak, after 1 day and night, take its upper clarification solution to apply, generally every 7-10 days, spray 2-3 times, each time spray 60kg per mu. Care should be taken to remove the residue thoroughly so as not to damage the leaves. (3) the mixed application of nitrogen and phosphorus in the peanut field which is deficient in phosphorus and nitrogen can spray 1% urea and 2% calcium superphosphate mixture, which saves labor and has a good effect. The preparation method of the mixture is as follows: urea lkg is added to the 100kg 2% calcium superphosphate aqueous solution. (4) the foliar application of potash fertilizer is generally prepared with plant ash. The preparation method is to take 5-10kg of plant ash that has not been drenched in rain, stir fully with water 100kg, soak for 12-14 hours, and take its clarification solution, that is, 5% of 10% plant ash leaching solution, and spray 60kg every time per mu. Potassium sulfate or potassium chloride aqueous solution can also be used, and the preparation method is to add potassium sulfate or potassium chloride 2kg to 100kg clear water, stir and dissolve to form 2% potassium sulfate or potassium chloride aqueous solution, and 60kg is sprayed every mu. (5) 5kg of dry plant ash was discarded with phosphorus and potassium, soaked with 40-50kg water, while calcium superphosphate 2kg was taken and sprinkled in the soaking solution, and the clear liquid was filtered half a day later, the rest was soaked and filtered by adding water for 20k, and then combined with the filtrate twice to 100kg, that is, potassium dihydrogen phosphate produced by local method was sprayed with 60kg per mu for 2 times, which could significantly increase production. (6) the problems that should be paid attention to in foliar fertilization of peanut. The fertilization time should be determined according to the growth situation and growth period of peanut, and it should be applied in the later growth stage. two。 To choose no wind and cloudy days, or sunny days before 9: 00 a.m. and 4: 00 p.m., in order to increase leaf absorption and prevent damage to leaves, 4 hours after spraying in case of rain, should be supplementary spraying after rain. 3. It is necessary to strictly control the spraying concentration, which is easy to damage the leaves and cause fertilizer damage. 4. When spraying, spray evenly and carefully, spray both sides of the leaves. Click to get more peanut planting technology click to get more foliar fertilizer application technology click to get more fertilizer fertilization technology