How can peanuts be fertilized with high yield? When is the best time to give? What kind of fertilizer should I apply? How much fertilizer does one mu of land use?

Peanut is a common crop in rural areas, although it is very common, it is rich in nutritional value. Today, I will tell you how to fertilize peanuts to achieve high yield. When is the best time to give? What kind of fertilizer should I apply? How much fertilizer does one mu of land use?

What kind of fertilizer is good for growing peanuts

Organic fertilizer, phosphorus and potassium fertilizer are good for growing peanuts.

1. Make ridges with autumn, apply rotten ring manure, Kang cave soil, retting green manure and so on.

2. Applying 15000 ~ 30000 kg/ ha, ridge cultivation, ditch opening, sparse application, and border spreading.

3. Ridge cultivation can also sparsely apply agricultural fertilizer before sowing in the same year.

4. When sowing, diammonium phosphate 150~225kg/ hectare and potassium sulfate 75~120kg/ hectare were applied as seed fertilizer.

5. Lime was applied to acid soil with base fertilizer.

6. For example, pH value (pH) 6.0 ~ 6.5, lime 450kg/ / ha, pH 5.5 ~ 6.0, lime 675kg/ / ha.

How much fertilizer do you use to grow peanuts per mu?

Peanut base fertilizer should be based on phosphorus and potassium fertilizer, generally speaking, the compound fertilizer produced by regular manufacturers in circulation on the market can be used as base fertilizer. The amount of base fertilizer should be determined according to the soil fertility, usually 20 kg for small mu (667 square meters) and 30 kg for large mu (1000 square meters). If you want to achieve accurate fertilization, you can carry out soil testing formula, fertilizing as needed. In addition, peanut continuous cropping will affect the yield, if not stubble, it is recommended to apply as much as possible fully mature farm manure, heavy stubble and other agents have a certain effect, but it is not recommended to use more.

How can peanuts be fertilized with high yield?

1. Combination of organic fertilizer and chemical fertilizer

In order to improve the effective nutrients of peanut field soil and form a soil structure with upper loose and lower fruit, air-water coordination, organic fertilizer and chemical fertilizer must be combined in the type of fertilization. Organic fertilizer contains not only rich and complete nutrient elements, but also organic matter which can improve soil structure. Chemical fertilizer contains single nutrient elements and high content of nitrogen available nutrients. The combined application of the two can promote each other, improve fertilizer efficiency, improve soil structure and continuously improve soil fertility. The experiment on the fertilizer effect of Jiayou fulvic acid organic fertilizer on peanut showed that the application of fulvic acid organic fertilizer had a significant effect on peanut yield, and the effect of chemical fertilizer and 3 times the amount of fulvic acid organic fertilizer was the best. compared with the treatment without organic fertilizer, the yield of peanut was increased by 166.2~187.0kg per mu.

2. the combination of previous crop fertilization and current crop fertilization.

Peanuts have the characteristics of like and lack of fertilizer, and most of the nutrient elements needed for high-yield peanuts are absorbed from the original soil. therefore, in peanut fields with medium or above soil fertility, the effect of fertilization in the first crop is better than that in peanut stubble, with more grain harvest and high yield of peanut. According to the experiment, under the condition of planting sweet potato in the former crop and peanut in the next crop, and the total fertilizer application amount of two crops in two years is the same, the yield of sweet potato with whole fertilizer in the same crop is the highest, which is 26.7% higher than that without fertilizer application. The yield of sweet potato in the previous crop was 14.7% higher than that in the current crop.

On the basis of fertilization in the previous crop, peanuts planted in the same stubble were properly fertilized. Although peanuts had low absorption and utilization of fertilizer nutrients, they could significantly increase production in middle-yield fields and high-yield fields, and compensate for the soil nutrients consumed. Therefore, in order to apply fertilizer in high-yield peanut fields, we must increase fertilizer in the previous crop to improve soil fertility, fertilize in the same crop to compensate soil fertility, and use the method of balanced fertilization combined with cultivation.

3. Base fertilizer is given priority to, topdressing is secondary.

Before the flowering and needling stage, the root system absorbs the strongest fertilizer and absorbs the most fertilizer, so all or most of the fertilizers needed for high-yield peanuts should be combined with winter ploughing and early spring farmland as base fertilizer and seed fertilizer. If the base fertilizer is insufficient and the seed fertilizer is not applied, the fertilizer can be applied properly. But the time of topdressing is early, which is generally carried out before the flowering and needling period. Extra-root topdressing can be carried out in order to promote the plumpness of pods in the middle and later stages of growth and development.

4. the proportion of fertilization in the stubble of peanut

According to the absorption of main nutrient elements of nitrogen, phosphorus and potassium and the absorption and utilization of fertilizer in high-yield peanut, the proportion of nitrogen halving, phosphorus doubling and total potassium fertilization was adopted. That is, 13.5 kg of nitrogen, 11 kg of phosphorus and 16 kg of potassium per mu.

The basic fertility of soil in medium fertilizer field is low, and in order to achieve high yield, the proportion of total application of nitrogen and potassium and double application of phosphate fertilizer should be adopted. That is, 27 kg of nitrogen, 11 kg of phosphorus and 16 kg of potassium per mu.