What foliar fertilizer works well for corn? Do you have any recommendations?

The purpose of using leaf fertilizer is to fill the lack of fertilizer on the soil layer, avoid plant senescence, and ensure nutrient balance. The use of leaf fertilizer in bud rice can increase corn yield, improve crop quality, and improve plant disease resistance. Now there are two kinds of leaf fertilizer for well-known brands on the market, one is sprayed when the bud is 7-9 leaves, which can enhance the lodging resistance of corn, control the rise of bud rice, make the root system developed, inhibit bacteria, resist diseases and pests, and supplement vitamins to make the plant grow healthily and strongly.

The other is to be sprayed before the bud is tasseled.

It can prevent seedlings from falling, fill in nutrients, promote maturity, increase pollination time, avoid empty trees, grow and thicken corn cobs, improve the roundness of corn grains, increase ear weight, avoid bald tips, and improve efficiency. When the seedling stage grows 3 to 5 leaves of corn, potassium dihydrogen phosphate plus zinc fertilizer is used to add sodium dihydrogen phosphate to potassium dihydrogen phosphate to prevent whitefly, and planthopper is sprayed with 50% phosphine and 20% pyridoxalpin, which can not only kill insects but also promote the growth of corn, and accelerate the growth and development of rhizomes of bracts.

Improve the photosynthesis efficiency of leaves, make the leaves of bracts dense in color and thick in stems, make small seedlings grow and develop vigorously, and lay a solid foundation for large spikes. The types of crops are different, the concentration of spraying urea solution is also different, and the general cereal crops are sprayed with a concentration value, and the concentration value needs to be lower when sprayed during the flowering period. The spraying concentration values for leafy vegetables and cucumbers are:

Apple, pear, strawberry and other fruit trees are most suitable. Tomatoes to the most suitable.

Therefore, the content of bud rice with urea solution as leaf fertilizer should be mastered. Leaf fertilizer spraying is not at any time, if the base fertilizer or fertilizer is abundant, you can choose leaf fertilizer based on nutrients, and then pay attention to the concentration value to be suitable, the time should be suitable, but also used in the critical period of crop growth and development, such as bud, wheat and other sedge crops in the middle and late stages of growth, rhizome absorption weakened, leaf fertilizer spraying can supplement vitamins, increase the number of grains and grain weight.

Brassin foliar fertilizer for corn has a good effect. Generally, when the corn grows to 6 or 7 leaves, foliar fertilizer is sprayed, and the leaf area at this time is large, which can effectively absorb fertilizer and promote its growth.

In order to improve the control effect, foliar fertilizer can also be appropriately added to the solution, such as potassium dihydrogen phosphate, blue crystal multi-micro fertilizer, etc., which can well control the spread of diseases, and can also promote corn to be more robust and improve its disease resistance.

Hello, if you want to give corn foliar fertilizer, it is recommended to choose amino acid foliar fertilizer, amino acid foliar fertilizer nutrition will be more, after all, to give corn foliar fertilizer, the main role is to supplement nutrition, here I want to remind you that what is the special foliar fertilizer to choose foliar fertilizer, because now according to the regulations of our country, it is not allowed to have any special foliar fertilizer, which is unreasonable and <>

Because all crops need the same nutrients, but the proportion is different, this point must be paid attention to when purchasing, as well as nutrient identification, content and other issues.

Foliar fertilizer is recommended to use potassium dihydrogen phosphate, and potassium dihydrogen phosphate should also be selected properly.

Potassium dihydrogen phosphate is the most selected foliar fertilizer on the market, and it is recommended to use powder potassium dihydrogen phosphate, but the selection of potassium dihydrogen phosphate also has certain skills.

The market is divided into powder and crystal, to choose powder, better soluble than crystal, high absorption and utilization rate.

Choosing the hormone-free Yanwo powder potassium dihydrogen phosphate will not cause hormonal growth to corn.

The effects of foliar fertilization are:Coordinate and promote growth and increase the yield of corn per unit area。In general,The yield of corn using foliar fertilizer increased by 10-30 per mu, and the yield of corn was more than 1500 catties

And it hasThe effect of early maturity, waterlogging resistance, drought resistance and lodging resistance

A few points of knowledge about corn seedlings and foliar fertilizer will be shared with you:

1. When can I apply foliar fertilizer? Early Stage:The best time is when the corn seedlings grow leaves. Late: It can also be the same for a week (7 days) before the ear of corn.

2. What kind of corn seedlings can be foliar fertilizer.

Foliar fertilizer can be hit 2 times, the efficacy period of foliar fertilizer is about 20 days for 3 weeks, the interval between the first and second time is 10-15 days, try to use the medicine before 10 o'clock in the morning when the weather is not hot, and after 4 o'clock in the afternoon.

If the corn is to grow weak, you can fertilize it once, and the fertilization needs to be urea to promote growth, and 50 catties of fertilizer per acre. In the later stage, about 10 corn leaves are basically all, and you can also top dressing another 50 catties.

Attention: If there are other pests and diseases in corn, before applying foliar fertilizer, it is necessary to carefully consult the various conditions and restrictions of spraying.

There are several periods during the growth of corn when foliar fertilizer cannot be used: respectivelyFlowering, seedling, and sunny afternoons with high temperatures and sunshine.

In general,In order to increase the yield of corn, most of the farmers who grow corn at home adopt the method of foliar fertilizer, so that the yield of 1600 per mu is not a big problem. Compared to corn, the yield can be increased by 20 . According to the calculation of the area of 10 acres of land, a stubble can increase the yield by about 3,000 catties.

Measures to prevent the appearance of corn-sized seedlings

1. Select good seeds with high purity and high germination rate, grade the seeds, sow them with full, neat and consistent large seeds, and carry out pesticide dressing.

2. Strictly control the quality of land preparation and sowing, achieve high standard operations, and ensure that all seedlings are sown and seedlings are planted.

3. Sow seeds at the right time. If it is too late to water the bottom moisture at the time of sowing, the watering water after sowing requires shallow irrigation and uniform irrigation, which is an important measure to protect seedlings in arid areas.

4. Suppression after sowing. After sowing, if the soil void is large, the seeds are not easy to absorb water, which affects the whole corn seedlings, and the suppression after sowing can increase the contact between the seeds and the soil and strengthen the absorption of soil moisture by the seeds; It is conducive to the rise of water content in the underlying soil and the increase of water content in the sowing layer to facilitate the emergence of seeds.

5. Prevention and control of insects, birds and beasts. After the emergence of seedlings, it is necessary to control underground pests in time to avoid causing a shortage of seedlings.

6. If it is found that the seedlings are missing and broken, etc., the seedlings should be checked for replanting or transplanting in time.

7. If the seed fertilizer is applied, the seed fertilizer should be separated to prevent the burning of seeds and seedlings.

8. If the rainfall is large after sowing and before the emergence of seedlings, when the ground plate knot is formed, it is necessary to carry out shallow cultivation in time to break the hard shell on the surface and help the seedlings to be unearthed. But don't damage the shoots when loosening the soil.

There are many compound corn special foliar fertilizers on the market, and the use of different foliar fertilizers is also very effective, so you can choose the foliar fertilizer products suitable for you according to the growth of corn, local soil conditions, fertilization, etc.

Spraying foliar fertilizer is to pay attention to make corn leaves fully moist, spraying time is best before 10 o'clock in the sunny day and after 5 o'clock in the afternoon, cloudy days without wind can be sprayed all day, mainly to let the liquid stay for a long time, strengthen the absorption of foliar fertilizer by corn.

It is better to use potassium dihydrogen phosphate as a foliar fertilizer, because it can promote the growth of plants. The concentration of fertilizer should not be too high, do not water after fertilization, and it is best to use foliar fertilizer when corn jointing.

It is best to fertilize with sheep manure, because after the sheep manure is fully fermented, it produces more nutrients that are most conducive to the absorption of crops, and the crops cultivated with sheep manure are natural and pollution-free.

Corn does not use much foliar surface, as long as the fertilizer is enough, it is very good, and potassium dihydrogen phosphate is used if you want to use it.

In the growth of corn, the fertilizer requirements in each period are different, and there are four main directions, namelyNitrogen, phosphorus and potassiumthe same contentCompound fertilizer, high nitrogen, low phosphorus and potassium compound fertilizer, high nitrogen and medium phosphorusLow potassiumcompound fertilizer as well as high nitrogen, phosphorus and potassium compound fertilizer.

Compound fertilizer with the same content of nitrogen, phosphorus and potassium -16-16;Compound fertilizer with high nitrogen, low phosphorus and medium potassium: 21-8-11; Compound fertilizer with high nitrogen, phosphorus and low potassium: 18-12-10; High nitrogen, phosphorus and potassium with the same compound fertilizer -5-5.

Precautions for planting corn and fertilizing

The application of corn bottom fertilizer should be appropriate, too much or too little, if the bottom fertilizer is too much, on the one hand, it will increase the cost, after all, the net profit of corn per acre is limited, under the premise of ensuring the yield, try to minimize the cost of input.

On the other hand, too much bottom fertilizer application increases the risk of corn growth, and lodging is easy to occur in the middle and late stages, which is not conducive to the final high yield. If the bottom fertilizer is applied too little, in the process of corn growth, there is no adequate nutritional supplement, the growth is slow, the growth is short, and in the later stage, the grain is not full, and the 1000-grain weight decreases, which is not conducive to high yield.

The answer is yes, corn can also be sprayed with foliar fertilizer, and the effect is not bad. Why? Look at the following case and you'll understand.

Place of use: Lishui, Zhejiang. Users:

Xiaowei Experimental Crop: Corn Experimental Product: Corn Foliar Fertilizer (Fish Protein + Potassium Dihydrogen Phosphate).

Usage: spray fish protein 15ml + potassium dihydrogen phosphate 15g bucket water. Feedback from users who have a dry pants type:

After 7 days, the effect was observed, indicating that the dosage was not enough, but the seedling effect was very good. Miao Qi, Miao Zhuang, the effect is very good. If you've used enough, it's better to be willing to fail.

By the way, in the seedling stage of crops, 50 ml of fish protein cat eat + 40 grams of potassium dihydrogen phosphate - bucket water, foliar spray, can promote the growth of seedlings, make them strong and neat, and reduce the appearance of weak seedlings, stiff seedlings, and yellow leaves. Foliar fertilizer is a supplement to root fertilization. If the basal fertilizer is nutrient, and the crop roots can absorb and optimize the nutrients normally, there is no need to consider foliar fertilizer.

According to the specific growth of crops, fertilize reasonably.

Spraying potassium dihydrogen phosphate 2-3 times at the jointing stage of corn can increase the yield of corn, and the zinc fertilizer sprayed at the seedling stage and jointing stage of corn can prevent the occurrence of mosaic disease of white seedlings of corn. Every time you spray foliar fertilizer, you add a little bit of plant hormones such as brassinolide to have unexpected effects.

What is foliar fertilizer?

Foliar fertilizer is a fertilizer sprayed on the foliar surface during the growth of crops, not only calcium, magnesium, iron, zinc, boron and other trace elements, but also nitrogen, phosphorus and potassium macroelements, as well as humic acid, amino acids and other foliar fertilizers.

Foliar spraying fertilizer has the functions of fast absorption, high utilization rate, rapid nutrition supplementation, enhanced crop resistance to collision and destruction, and significantly improved product quality.

Foliar fertilizer spraying is not available at any time, such as noisy fruit-based fertilizer or seed fertilizer is sufficient, you can choose foliar fertilizer based on micro-index preparation elements, and then pay attention to the concentration to be appropriate, the time to be appropriate, and to be used in the critical period of crop growth.

In the later stage of growth of grasses such as corn and wheat, when the root absorption capacity is weakened, foliar fertilizer spraying can supplement nutrients and increase the number and weight of grains.

As far as corn is concerned, there are many fertilizers that can be sprayed on the foliar surface, and it depends on what the corn is missing. What? The principle of what to make up for spraying.

As follows, the leaves are yellow, and gradually expand upward, the leaves are thin and yellow, which is a lack of nitrogen, and nitrogen must be supplemented.

If the leaf color of the seedling stage is purple or red, the plant is short, the corn cob is bent, bald, and the grain row is not neat, which is a lack of phosphorus, and phosphorus must be supplemented.

The lower leaves turn yellow along the edge from the tip, and scorched, the stalk is thin and thin, the root system is not developed, it is easy to lodging in the later stage, the rod is small and slender, and the bald tip is serious, which is potassium deficiency and potassium supplementation.

The lower leaves are still green, while the upper leaves are white, and the symptoms of green deficiency appear, which means iron deficiency and iron supplementation.

If there are pale stripes on the leaves at the seedling stage, followed by the phenomenon of whitening of the wide band, while the midrib and edge are still green, it is a zinc deficiency and zinc supplementation.

Corn may also have calcium deficiency, magnesium deficiency, sulfur deficiency, manganese deficiency, boron deficiency, molybdenum deficiency, copper deficiency, etc., the deficiency of these nutrients will affect the yield of corn, resulting in reduced yield。The lack of these nutrients can be compensated for by foliar sprays.

Therefore, what kind of foliar fertilizer should be supplemented for corn, you have to decide what to make up according to what your corn lacks.

If you want corn to be not lacking, you must pay attention to scientific fertilization, such as increasing organic fertilizer, phased top dressing, etc. But in fact, it is difficult for us to achieve the goal of increasing organic fertilizer, and we rarely top dressing in stages.

However, when we sow summer corn, although we can not increase the application of organic fertilizer, but there is wheat straw directly returned to the field, this is a good organic fertilizer, we are applying a sufficient amount of nitrogen, phosphorus and potassium ternary compound fertilizer for seed fertilizer, so that we can solve the problem of corn deficiency.

Foliar sprays are also recognized by many as a cost-effective fertilization measure.

For example, the potassium dihydrogen phosphate sprayed 2-3 times at the corn jointing stage can increase the yield of corn, and the zinc fertilizer sprayed at the corn seedling stage and jointing stage can prevent the occurrence of corn white seedling mosaic disease. Every time you spray foliar fertilizer, you add a little bit of plant hormones such as brassinolide to have unexpected effects.

Amino acid foliar fertilizer is best sprayed on corn.

Amino acid foliar fertilizer is easier to be absorbed by seedlings, can make corn seedlings grow faster, and has a certain pre-fiber transport and pest control ability, spraying amino acid foliar fertilizer corn seedlings usually grow stronger, many farmers who plant corn will choose amino acid foliar fertilizer.

Corn seedlings can be sprayed amino acid foliar fertilizer, generally in the corn seedling stage to choose to spray vegetative foliar fertilizer, common foliar fertilizer is potassium dihydrogen phosphate, potassium sulfate, urea fertilizer, etc., spraying time in the evening, spraying once every half month, a total of 2-3 times. Key points of seedling management technology: interseedling replenishment; Regular and appropriate watering; timely weeding; Reasonable topdressing of fertilizer in the later stage; Spray pesticides in a timely manner to prevent and control the threat of pests and diseases.

Corn high-yield fertilizer formulation

Formula 1: urea sulfate potassium ammonium dihydrogen phosphate plus erector additives.

Formula 2: urea sulfate potassium ammonium phosphate monohydrogen additive.

The prepared fertilizer is gray-white particles, with a diameter of 4mm, which can increase the yield of corn by about 28% after application. When fertilizing corn, we must pay attention to timely fertilization and local fertilization, and under normal circumstances, fertilizer can be applied according to the fertilizer needs of each growth stage of corn.

However, sometimes there will be special circumstances, such as corn seedlings growing too slowly, at this time, you can add fertilizer to them, and if the soil fertility is not enough, it is relatively poor, you can also increase fertilizer. When fertilizing, it is necessary to pay attention to the fertilizer can not be too close to the roots of corn seedlings, to prevent corn seedlings from being burned out, urea, compound fertilizer potato beams and other fertilizers should be covered with soil after sprinkling, otherwise the fertility will be weakened.

The above content refers to Encyclopedia - Foliar Fertilizer.