In recent years, it has been found that the cultivation of wheat peanuts is becoming more and more popular, which also makes people's economic benefits increase year after year. In order to obtain higher economic benefits for wheat peanuts, it is better developed in agricultural production. According to the planting situation in production, it is necessary to skillfully grasp the application method of fertilizer.
1, chasing fat
The first top dressing was used to pre-crop the peanuts before harvesting. The amount of fertilizer applied was 30-40 kg of peanut fertilizer, 10 kg of urea, 15 kg of diammonium and 10 kg of potassium chloride. The second top dressing began to expand during the young fruit, and the average cult was 10 kg of urea.
2, foot phosphorus
Although peanuts have less absorption of phosphorus, phosphate fertilizer can not only effectively enhance the nitrogen fixation capacity of rhizobium during the growth of peanut, but also significantly promote the reproductive growth of plants and improve the quality of peanuts. The peak period of phosphorus requirement for peanuts is mainly before the pod-forming period. Therefore, phosphate fertilizer should be applied in the early stage, and 12 kilograms of calcium phosphate per acre is generally applied. After sealing the ridge, if the phosphate fertilizer is insufficient, spray 3% of the superphosphate solution, spray once every 7 to 10 days, and spray 2 or 3 times.
3, early nitrogen application
Peanuts absorb a large amount of nitrogen. Generally, 50 kg of pods require 3 to 3.5 kg of pure nitrogen. After the peanuts enter the seedling stage, the nitrogen-fixing ability of the rhizobium on the roots of the seedlings is very weak, and the quick-acting nitrogen fertilizer needs to be supplemented early.
4, skillful calcium
Peanuts are crops that like calcium. Calcium fertilizer is good for gypsum, and the dosage per mu is about 20 kg. The gypsum is ground into a fine powder during application, and is applied during the full bloom of the peanuts and most of the fruit needles are introduced into the ground. If the peanuts grow too strong, you can use your feet to step on the peanuts. This will prevent the seedlings from growing and help the needles.
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