How to grow peanuts to increase yield
How to grow peanuts to increase yield? Peanut is an important economic crop. When fertilizing, we should master organic fertilizer, supplemented by inorganic fertilizer, organic and inorganic fertilizer combined with fertilization principle, and achieve stable and high yield through balanced fertilization and topdressing. First apply the base fertilizer. The amount of base fertilizer accounts for 80%-90% of the total amount of fertilizer. Some peanut fields only need to apply base fertilizer. Even if there is little or no fertilizer in the later stage, high yield can be obtained, which indicates the importance of base fertilizer. Generally, 2000 kg of high-quality farm animal manure per mu, 120-20 kg of diammonium phosphate, 40-50 kg of superphosphate, 5-7.5 kg of potassium chloride, 4-5 kg ​​of urea, and 0.5% of phosphate fertilizer. The -1% ratio is applied after mixing with organic fertilizer, which is beneficial to improve fertilizer efficiency. Some alkaline ground can be applied 15-25 kg of gypsum, molybdenum fertilizer can be 10-20 g ammonium molybdate or 0.1%-0.2% solution, soaking seeds for 3-5 hours, drying can be sown, gypsum or lime can be combined with cultivated land When the time is applied as a base fertilizer.
Skillfully applied top dressing. First, lightly chasing seedlings, peanut seedlings can promote early, strong seedlings, branches, so that flowers and fruits increase, yield increases, seedlings need less fertilizer, but the base fertilizer is insufficient or not applied, should be appropriate Pursuing the quick-acting nitrogen fertilizer to promote the growth of seedlings and flower bud differentiation, it can directly use 3-4 kg of urea per acre before use, or 250-300 kg of manure and manure in the decomposed manure, and add the amount of phosphorus and potassium fertilizer to mix and apply. The second is to apply flower needle fertilizer. The needle period requires more fertilizer, and the effect is to promote more flowering, more species, and more results. Generally, 4-5 kg ​​of urea, 6-7 kg of diammonium phosphate, 5-6 kg of potassium sulfate, or 50-75 kg of plant ash are applied per mu.
If the needle-forming period is weak, it is also possible to add 100-250 g of urea in combination with spraying. The third is to apply the pod fertilizer. The pod-forming period is the period in which the most fertilizer is needed, and it is also the key period for promoting the accumulation of dry matter and the development of fruit needles and pods. Grab the application of 4-5 kg ​​of diammonium phosphate and 6-8 kg of superphosphate per acre before the closure of the line. For the application of boron and zinc fertilizer, spray 2-3 times when applying the pod fertilizer. %-0.2% zinc sulfate or borax aqueous solution. In the late growth stage, peanuts are not suitable for topdressing because the plants have been sealed. However, for those with de-fertilization, the urea solution with a concentration of 1%-2% can be sprayed with fertilizer to improve the seed setting rate and fruit growth.
Add calcium fertilizer. Calcium promotes pod formation, reduces pods and increases the number of fruit. When lime is used as top dressing, it can be combined with cultivating soil in the early flowering stage and applied shallowly to the peanut pod area, generally 5-8 kg per mu. Or 7.5-10 kg of calcium sulfate per acre. Follow the bacteria fertilizer. Artificial inoculation of peanut rhizobium can promote early peanut and multi-root nodule and improve the nitrogen fixation capacity of the plant. At present, the peanut nodule fungus (rhizobial fertilizer) is generally used for 25 grams per acre. When using it, add appropriate amount of water to make a paste and mix well with seeds. Pay attention to mixing with seeds to prevent sun exposure. Mix or contact with fungicides.
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