How much to fertilize peanuts, how many times to fertilize peanuts

As the saying goes, "early nitrogen and phosphorus are good enough to supplement calcium, and peanuts are of high quality and high yield".

1) Early nitrogen application.

After peanut enters the seedling stage, the nitrogen in the seeds is basically used up, and the nitrogen fixation ability of rhizobia on the root system of the seedlings is very weak, so the early supplementation of fast-acting nitrogen fertilizer is not only conducive to cultivating strong seedlings, promoting the differentiation of flower buds in the early stage, but also can play a role in promoting the development of rhizobia. Generally, 3000 kg of high-quality rotting farmhouse fertilizer and 5 kg of urea are used as base fertilizer per mu, and the time of applying seedling fertilizer can not be later than the flowering and needle period, and it should not be too much.

2) Chase good fat.

The first topdressing is after wheat harvest and early stubble topdressing before peanut clusters, and the amount of fertilizer is 30 40 kg of peanut fertilizer per mu, or 10 kg of urea, 15 kg of diamine, and 10 kg of potassium chloride. The second topdressing is in the beginning of the expansion period of young fruits, and 10 kg of urea per mu is generally applied.

3) Sufficient phosphorus.

Phosphate fertilizer can not only effectively enhance the nitrogen fixation ability of rhizobia in the growth process of peanut, but also significantly promote the reproductive growth of plants and improve the quality of peanut. The peak period of phosphorus demand for peanuts is mainly before the pod-setting stage, therefore, sufficient phosphorus fertilizer should be applied in the early stage, and 12 kg of superphosphate per mu is generally applied. After sealing the ridge, if the phosphate fertilizer is insufficient, you can spray 3% superphosphate solution, spray once every 7 10 days, and spray 2 3 times in a row.

4) Calcium supplementation.

Peanut is a crop that particularly likes calcium, and calcium fertilizer is better with gypsum, and the dosage per mu is about 20 kg. When applied, the gypsum is ground into a fine powder, and applied when the peanut is in full bloom and most of the fruit needles are in the ground. If the peanut tree grows too vigorously, you can use your feet to step on the peanut seedlings, which can not only prevent the seedlings from growing vigorously, but also help the fruit needles to be pricked.

Depending on the content of the fertilizer selected, it is generally a high-phosphorus compound fertilizer

Look at what fertilizer to choose, the content of each fertilizer is different, you can try the water-soluble fertilizer, I heard that Fujinmen has suitable for all stages of peanuts, I heard that the effect is not bad, you can try it.

Peanut fertilizer amount: 1500-2000kg of farmhouse fertilizer (or 250-300kg of commercial organic fertilizer), 8-11kg of nitrogen fertilizer, 4-6kg of phosphate fertilizer and 7-8kg of potassium fertilizer in the whole growth cycle of peanut under medium fertility level. Nitrogen and potassium fertilizers are applied twice as basal fertilizer and top dressing, and all phosphate fertilizers are used as basal fertilizers, and chemical fertilizers and farmhouse fertilizers (or commercial organic fertilizers) are mixed with application.

First, the base fertilizer. Apply 1500-2000kg of farmhouse fertilizer or 250-300kg of commercial organic fertilizer, 6-8kg of urea, 9-13kg of diamine phosphate, 6-7kg of potassium chloride, 1-2kg of zinc sulfate per mu of zinc-deficient soil, borax per mu of boron-deficient soil, and molybdenum fertilizer can be soaked with ammonium molybdate aqueous solution. Rhizobia inoculation is recommended.

The following is the recommended dosage of base fertilizer (kg mu).

Second, top dressing. about urea per mu at seedling stage; After the peanut is pinned and podded, it can be sprayed with 2%-3% superphosphate aqueous solution 2-3 times on the foliar surface, once in 7-10 days, and if the flower growth is weak, 100-200g urea can also be added with spraying; During the ripening period of the pods, the amount of fertilizer required is still relatively large. In order to prolong the functional period of leaves and prevent premature aging, foliar spraying is generally carried out with 1% urea solution plus 50kg of 2% superphosphate clarification solution per mu, or sprayed with 50kg of potassium dihydrogen phosphate solution, sprayed once every 7-10 days, 2-3 times in a row, which has a certain effect of increasing yield; Zinc and boron deficient soils, in the case of no zinc and boron application of basal fertilizer, zinc sulfate or borax aqueous solution can be sprayed from seedling stage to first flowering stage, sprayed 2-3 times.

Peanuts should be fertilized a total of 3 times. 1. Bottom fertilizer: Before the beginning of spring in spring, a base fertilizer application should be carried out, and the basic fertilizer should be applied with manure for basic fertilization, and the amount of bottom fertilizer should be 10 150,000 rounds per mu.

2. Top dressing during the growth period: After the peanut is sown and germinated, according to the growth needs of peanuts, the primary fertilizer is chased in the early stage of growth, and phosphorus and potassium fertilizers are usually selected. When peanuts enter the flowering and podding stage, nitrogen, phosphorus and potassium compound fertilizer can be used to top dressing to increase the yield and quality of peanuts.

3. Top dressing during the maintenance period: When the peanut enters the maintenance period, in order to ensure the growth of the family blade peanut, it is generally necessary to carry out several top dressing. The amount of top dressing each time is 580,000 rounds of fertilizer per mu.

At the same time, regular soil testing and fertilization are required to ensure that the nutrient content and pH of the soil are at the appropriate level.

Peanuts are a relatively affordable and common nut in life, and a bottle of beer on the wine table with a plate of fried peanuts can be described as a delicacy in the world. Peanuts are favored not only because of their delicious taste, but also because of their high nutritional and economic value. Peanuts are grown in many rural areas, so what fertilizer should be applied to grow peanuts?

Peanut fertilization is not completed at one time, and usually goes through three processes: seedling promotion fertilizer, flower needle fertilizer and podding fertilizer. Each growth stage decides what fertilizer to use based on its growth characteristics.

Seedling fertilizer can be used with fast-acting nitrogen fertilizer, three to four kilograms of urea per mu, which can promote seedling growth and flower bud differentiation.

Flower needle fertilizer is mainly applied at the flowering stage, with five to six kilograms of urea, six to eight kilograms of diammonium sulfate, and five to six kilograms of potassium sulfate per mu.

Finally, the podding stage fertilizer, top dressing six to eight kilograms of superphosphate, or diammonium phosphate, if the flowering needle stage topdressing is too much and causes the plant to grow, you can not top dressing pod fertilizer.

In addition, it is necessary to supplement the foliar fertilizer, generally using potassium dihydrogen phosphate solution, which can increase the yield of peanuts by about 10%, and spray once at the flowering stage and the next needle stage.

It should be noted that peanut is a kind of crop that particularly likes calcium, calcium fertilizer is good for gypsum, the amount per mu is about 20 kg, mainly applied in the flowering period of peanuts, and the gypsum is crushed into fine powder when fertilizing, and then diluted with water, and then watered the seedlings.

The soil nutrient measurement value is used to calculate the soil fertilizer supply, and then the fertilizer requirement is calculated according to the following formula.

Where: Nutrient uptake per unit yield of crops Target yield Nutrient uptake by crops.

Soil measurement value Correction factor Soil fertilizer supply.

The measured value of soil nutrients is expressed as 10, which is the coefficient of converting the measured value of nutrients in the soil tillage layer into the nutrient content of soil per mu, that is, the soil with a thickness of 0 20 cm is generally regarded as the vegetative layer of the plant, and the layer weighs 150,000 kg per mu of soil. The calculation method of converting the fixed value of soil nutrient measurement to soil nutrient content per mu of land is as follows: 150,000 (kg of soil) 10 kg.

For example, the target yield of a peanut field is 300 kg mu, and the soil available nitrogen content is 6 10, available phosphorus is 3 10, and available potassium is 9 10.

The amount of fertilizer required per mu is:

Nutrient (nitrogen) uptake by peanuts (Nitrogen per kilogram of peanuts) 300 15 kg.

Soil fertilizer supply 60 (correction factor) kg.

Substitute the formula and fold it into urea requirements as:

Kilogram. Since 60% of the nitrogen of peanuts comes from rhizobia nitrogen fixation, the actual amount of nitrogen fertilizer can be 40% of the calculated number, therefore, the actual application of urea kilograms per mu.

In the same way, the amount of phosphorus and potassium fertilizer required can be found.

When is the best time to fertilize peanuts? What kind of fertilizer to apply?

Fertilization occurs at each stage of peanuts. The important nodes are as follows: 1. Seedling stage:

If the base fertilizer applied to peanut is insufficient during cultivation, it is necessary to top dressing in time at the seedling stage and select nitrogen fertilizer. 2. Flowering period: Peanuts consume a lot of nutrients during the flowering period, and more phosphorus and potassium fertilizers need to be applied.

3. Podding stage: The podding stage is the time when the most fertilizer is needed in the whole growth stage, and more nutrients need to be supplemented, mainly potassium fertilizer, supplemented by phosphorus and nitrogen fertilizer. 4. Maturity period:

A small amount of nitrogen fertilizer solution can be sprayed during the maturity period of peanuts to improve the disease resistance of peanuts.

Peanut fertilization method: base fertilizer and seed fertilizer, fertilizer amount requirements.

1. Base fertilizer and seed fertilizer: peanut base fertilizer accounts for 80%-90% of the total fertilizer, mainly organic fertilizer, with nitrogen, phosphorus and other chemical fertilizers. The exact application varies depending on the amount and type of fertilizer applied.

Generally, it is a combination of dispersion and concentration, most of which are sprinkled with basal fertilizer before sowing, and a small part is left to be combined with sowing concentrated furrow application or hole application.

2. Fertilization requirements: 2500-5000 kg of organic fertilizer per mu, 10 kg of urea or 15 kg of diammonium, 4-6 kg of potassium dihydrogen phosphate, and the use of long-term compound fertilizer is advocated, 30-50 kg per mu. In order to comprehensively improve the level of fertilization, to achieve the purpose of sufficient and balanced fertilization.

Peanuts are formulated with nitrogen, phosphorus and potassium. The formula ratio is, the principle of fertilization is based on base fertilizer, timely top dressing, base fertilizer is mainly organic fertilizer, with phosphorus and potassium fertilizer, top dressing seedling stage is mainly based on an appropriate amount of available nitrogen fertilizer, and the general base fertilizer accounts for more than 80% of all fertilizer consumption.

Peanut growth habits

1. Environment: Peanuts generally grow on sandy land with warm climate and moderate rainfall, which can fully meet and grasp its growth needs and promote its good growth.

2. Temperature: Peanut seed germination requires a higher temperature, the suitable temperature for pearl bean seed germination is 12-15, and the suitable temperature for ordinary seed germination is 15-18.

3. Water quantity: Peanut is drought tolerant, but it needs a lot of water, which has the greatest impact on flowering and podding stage, and drought at this stage will affect flower bud differentiation, flowering, fertilization and fruit needle elongation.

Summary. In the growth period of peanuts, compound fertilizers with high phosphorus and potassium content were mainly applied. Peanut fertilization generally takes a bombardment, that is, one-time application of plantar energy, no topdressing in the later stage, if the later stage of fertilizer, you can take root topdressing spraying potassium dihydrogen phosphate and so on. Peanuts require a lot of fertilizer.

What fertilizer to apply during the growing season of peanuts.

In the growth period of peanuts, compound fertilizers with high phosphorus and potassium content were mainly applied. Peanut fertilization generally takes a bombardment, that is, one-time application of plantar energy, no topdressing in the later stage, if the later stage of fertilizer, you can take root topdressing spraying potassium dihydrogen phosphate and so on. Peanuts require a lot of fertilizer.

Peanuts generally do not need top dressing on the basis of sufficient base fertilizer, especially the peanuts covered with film are not convenient for top dressing. For open-field peanuts or plots with poor soil fertility and insufficient base fertilizer, appropriate topdressing can be applied at the seedling stage or flower needle stage according to the seedling condition, and 10 15 kg of compound fertilizer per mu is generally applied in combination with cultivated soil; At the pod-setting stage, foliar sprays of potassium dihydrogen phosphate and 1 urea solution can prevent premature aging, promote pod fullness and increase yield.

<> planting peanuts, the application of calcium fertilizer and other fertilizers can promote the plant to bear more fruits, and the reasonable application of calcium fertilizer can not only promote the plant to increase jujube such as branches, but also make the peanut kernel more full. Precautions: The amount of fertilizer required by the first peanut at the seedling stage is relatively small, so it cannot be fertilized too much, so as not to cause the phenomenon of burning seedlings; After the plant enters the flowering stage, the demand for fertilizer is higher, and the demand for nitrogen, phosphorus and potassium (growth stage) accounts for about % and 17% respectively.