First, the skillful spray molybdenum fertilizer
Molybdenum is an indispensable nutrient for legumes. Rhizobium in soybean roots has a strong nitrogen fixation effect and can effectively fix soil nitrogen. In the flowering stage and pod stage of peanuts, spray 1-2 times according to the dosage of 50 kg of water per acre + 50 g of ammonium molybdate, spray once every 7-10 days, which can make the pods of peanuts develop more. Full and full, generally can achieve more than 10% increase in production.
Second, skillfully spray potassium dihydrogen phosphate
Potassium dihydrogen phosphate is a good thing. It quickly supplements phosphorus and potassium for crops. It has a very significant effect on growth and growth in various field crops, cash crops, fruits and vegetables. It is no exception in peanuts. Spraying 0.2-0.3% potassium dihydrogen phosphate once during peanut flowering, pod-forming and fruit expansion, not only can make peanuts more flowering, more pods, pods are more full, but also effectively prevent Peanut stems and leaves have premature aging, and the effect of increasing yield and income in the later period is very obvious. For peanut fields with yellow leaves, a 0.3% urea solution can be added when spraying potassium dihydrogen phosphate, and the effect is better.
Third, the skill of spraying boron fertilizer
Boron not only promotes carbohydrate function and protein synthesis in peanuts, but also enhances the function of nutrient-salvation. It also promotes pollen germination and elongation of pollen tubes, making peanuts fertilized and fertilized with higher quality and better pod yield. The grain development is more full, and it can also increase the branching, increase the number of pods and single weight, and also have a positive effect on increasing the absorption of nitrogen, phosphorus and potassium.
Because boron is mainly concentrated in leaves, shoot tips and floral organs, and the highest content in seedling stage, boron fertilizer should be best supplemented as soon as possible. It can be sprayed once in the peanut seedling stage, early flowering stage and pod stage according to the dosage of 50 kg of water per acre + 120 g of borax, which can improve the efficiency of peanut pods, the pod filling rate and the grain weight, and reduce the empty The phenomenon of pods and dried hazelnuts can increase production.
Fourth, skillfully sprayed urea solution
Many peanuts are prone to plant growth and weak yellow leaves due to insufficient base fertilizer or poor soil. They are not only conducive to the normal growth and development of peanuts, but also adversely affect the flowering and pod-forming results, and even bring about different degrees of yield reduction. These can be solved by spraying a urea solution. During the flowering period from peanut to pod formation, it can be sprayed twice with 1% urea solution and sprayed once every 7-10 days, which can promote the leaf greening and enhance the photosynthesis and dryness of the plants. Material accumulation can achieve more than 10% yield increase.
Five, skillfully spray iron fertilizer
Peanut deficiency solution occurs in the form of deficiency, such as the frequent occurrence of white leaf yellow flower disease is a significant manifestation of iron deficiency. Peanut iron fertilizer is insufficient, the upper leaves are chlorotic and white, and gradually appear brown spots or even premature aging death, which will not only reduce the photosynthesis of the leaves, but also inhibit the accumulation of dry matter, resulting in different degrees of yield reduction. When the iron and iron phenomenon occurs in the peanut, it can be sprayed 3 times continuously with 0.2-0.5% ferrous sulfate solution (better effect with organic chelated iron), sprayed once every 5-7 days to increase the leaf. With the effect of surface spray, 0.1% neutral detergent and proper amount of urea can be added to the solution to enhance the adhesion and nutritional supplement of the fertilizer on the leaves.
Six, skillfully spray rare earth solution
Peanut spraying rare earth can improve root activity, enhance photosynthesis and metabolism, make roots more developed, leaves more green, and reduce black shell, empty shell, rotten roots, make pods fuller and fuller, can achieve 10% -15% increase in production. The 0.05-1% rare earth solution can be sprayed once during the peanut flowering stage and the pod-forming stage. It should be noted that the excessive use of rare earth concentration will inhibit the growth of peanuts.
7. Spraying grass ash filtrate
Practice has proved that peanut spraying grass ash has the functions of supplementing potassium, drought resistance, lodging prevention and reducing disease, and has a good effect on increasing the yield in the later stage. Generally, it can be sprayed twice during the peanut pod stage, or rooted with the grass ash filtrate.
Easy to make grass ash: stir well according to the amount of 5 kg of grass ash + 100 kg of water. After standing for 12 hours, filter the ash and ash, and use the collected filtrate.
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