Peanut planting technology: how to fertilize high yield? Which kind of foliar fat is better?

As far as growers are concerned, the most concerned thing about growing peanuts is the yield, so how to achieve high yield of peanuts? Fertilization is the key. How to apply fertilizer for high yield in the process of planting peanuts? Which kind of foliar fat is better?

First, how to fertilize peanuts for high yield?

1. Fertilizer requirement characteristics of peanuts.

The proportion of nutrient elements such as nitrogen, phosphorus, potassium and calcium in the whole growth period of peanut is 3:O.4:1:0.6, in which the demand for nitrogen is not very high, because of its own root nitrogen fixation, and peanut also has different requirements for boron, molybdenum, iron, manganese, magnesium, sulfur and so on.

2. Base fertilizer

Before planting, peanuts should be ploughed with base fertilizer, 1500kg / mu of farm manure, 8kg of urea, 30kg of superphosphate and 10kg of potassium chloride. We should also pay attention to the deep application of potash fertilizer and the shallow application of calcium fertilizer.

3. Topdressing

The main results are as follows: (1) in the seedling stage, there is less topdressing in the peanut seedling stage, because the peanut root has the effect of nitrogen fixation, most of the nutrients in the seedling stage can be satisfied by the supply of soil base fertilizer. If there is a lack of base fertilizer, topdressing nitrogen fertilizer or foliar spraying urea solution can be adopted.

(2) to apply calcium fertilizer at flowering and full flowering stage, we can choose molal high calcium potassium fertilizer and spraying trace elements, 0.2-0.3% borax solution, 800 times ammonium molybdate solution, 0.5% manganese sulfate solution, etc., to promote flowering and fruiting.

(3) in the fruiting period, peanut with 15-15-30+TE of high potassium water-soluble fertilizer can prevent peanut shell from forming empty shell and increase yield.

Second, which kind of foliar fertilizer is good for high yield of peanuts?

1. Nitrogen fertilizer

It is easy to lose fertilizer in the middle and later stage of peanut growth, or it is cloudy and rainy for a long time in summer, and it is difficult for the roots to absorb nutrients, so spraying some urea solution at this time, the effect is good, urea and water can be mixed in the proportion of 100%. After fully stirring, 60 kg per mu is sprayed.

2. Phosphate fertilizer

Peanuts need a lot of phosphorus, and spraying 2% Mel 3% superphosphate aqueous solution in the middle and later stages of growth can improve pod yield and quality. Can put 2-3 kilograms of calcium superphosphate into 100 kilograms of water, stir and soak for 1 day and night, take the upper layer of clarification solution, spray every 7-10 days, spray 2-3 times, each time spray 60 kilograms per mu.

3. Potash fertilizer

The foliar spraying of potash on peanuts can be prepared with plant ash, which is fully stirred with 5-10 kg of plant ash and 100 kg of water. After soaking for 12-14 hours, take the upper clarification solution, that is, 5% of 10% lixivium of plant ash, spray 60 kg per mu each time.

You can also use potassium sulfate or potassium chloride aqueous solution, add 2 kilograms of potassium sulfate or potassium chloride to 100 kilograms of clear water, dissolve into 2% potassium sulfate or potassium chloride aqueous solution, stir evenly.

4. Mixed spraying

In phosphorus-deficient and nitrogen-deficient peanut fields, 1% urea and 2% calcium superphosphate can be sprayed, and 1 kg of urea should be added to 100 kg 2% calcium superphosphate aqueous solution. Urea can promote peanut growth, and then stir evenly. Each mu of peanut field can be sprayed 60 kg each time, as long as it is sprayed twice in a row, it will have an obvious effect on increasing production.

5. Points for attention

When spraying peanut foliar fertilizer, the concentration should be strictly controlled, the effect is not obvious when the concentration is too low, and the high concentration is easy to damage the leaves and cause fertilizer damage. When spraying, spray evenly and fine, preferably to both sides of the leaves, which is more conducive to peanut foliar absorption.

Generally speaking, peanuts are crops that need a lot of fertilizer. If peanuts want to increase production and income, growers also need to pay attention to scientific fertilization methods.