Peanut foliar spray fertilizer has the advantages of high absorption and utilization of fertilizers, economical use of fertilizer, and significant yield increase. Peanut spraying fertilizer in the middle and late stages of peanut can effectively improve the photosynthetic efficiency of peanut plants, increase the dry matter content, make individual plants develop well, and have a good effect on promoting the growth of peanut meal, increasing grain yield, increasing yield, and improving the quality of pods. :
Superphosphate leachate: Peanut leaves have a strong absorption capacity for phosphorus. In the flowering stage and the lower pinning stage, the leachate with a concentration of 1.5% to 2% of superphosphate water (filtered for 14 to 16 hours) is used twice. About 60 kilograms per acre spray, can enhance flowering, scarring performance, generally increase 7% to 10%.
Urea solution: sandy soil, thin soil, insufficient basal fertilizer, short plants, weak growth, peanuts with yellowing and dehydration. The peanuts are sprayed with 0.7% to 1% concentration from the flowering stage to the pod stage. Urea solution. There is no need to spray urea on the field where Miaowang Zhujian has a mad tendency.
Plant ash leaching solution: Plant ash is a potash fertilizer for the farmer, with an average potassium content of 5% to 6%, of which more than 90% is water-soluble potassium carbonate. In the period from the beginning of peanut pods to the pod expansion, spraying 5% of the concentration of ash in the ash water, combined with bacon, can increase peanut production by more than 20%.
Potassium dihydrogen phosphate solution: Potassium dihydrogen phosphate is a kind of dual compound fertilizer of phosphorus and potassium, which can meet the needs of the development of peanut acupuncture, increase the number of full fruit, increase the weight of 100 grains and oil content, but also prevent premature aging, with significant The effect of increasing production. Generally from the peanut flowering stage to the fruiting fruit expansion stage, the leaves are sprayed with 0.3% potassium dihydrogen phosphate twice.
Ammonium molybdate solution: Molybdenum can promote the nitrogen fixation of rhizobia in leguminous crops. Spraying at the flowering stage can also coordinate vegetative growth and reproductive growth, promote fruit filling, and increase production by more than 10%. The combination of ammonium molybdate seed dressing and foliar spray applied best. Peanuts can be sprayed twice with a 0.1% aqueous solution of ammonium molybdate two times during flowering to peanut stage.
Boron solution: Boron can promote pollen germination, is conducive to pollination and insemination, increase peanut fruit set rate, while also increasing chlorophyll, promote photosynthesis, increase fruit weight and fruit rate. It is usually sprayed once with 0.2% borax or boric acid solution at the early flowering stage and flowering stage.
Ferrous sulfate solution: Peanut is extremely sensitive to iron, and it is planted on alkaline soil. It is prone to iron deficiency disease and shows symptoms of yellow leaves and whitening. If iron fertilizer is sprayed in time, it can turn green after a few days. According to the test, spraying 0.3% to 0.5% of ferrous sulfate solution for 2 times during the flowering period can increase production by 13% or more.
Manganese sulphate solution: For each ton of dry matter formed, peanuts need to absorb 39 grams of manganese. Manganese fertilizers are applied to manganese-deficient soils, which generally increase production by 8% to 11%. Application method: from 30 to 50 days after sowing of peanuts, and 15 to 20 days before harvest, spray once every 10 to 14 days with 0.1% manganese sulfate solution; when necessary, it can be used as a fungicide against peanut leaf spot. Mixed application.
Photosynthetic micro fertilizer solution: Photosynthesis microelement fertilizer contains both trace elements and photorespiration inhibitors. The use of peanuts on peanuts not only satisfies the need for trace elements, but also inhibits photorespiration, reduces consumption, and promotes fruit filling. , can increase production by more than 15%. In the peanut flowering stage, spray twice, spraying once every 10 days, each time using 100 grams of photosynthetic fertilizer per acre, adding 50 kg of water to dilute, and selecting the cloudy day or sunny afternoon when the sunlight is not strong. Spraying.
Rare Earth Fertilizer Solution: Rare Earth Micro Fertilizer, also known as Rare Earth Nitrate, is a new type of rare earth element fertilizer pioneered and promoted in China. Rare earth micro fertilizer dressing or foliar spray can enhance plant vigor and promote photosynthetic and metabolic functions. To achieve the purpose of increasing production, the average increase in production is 9.5% to 14%. It can be used to spray 0.08% rare earth micronutrient fertilizer solution from the initial flowering stage to the crusting stage with the interval of 15 days.
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