Is it useful to spray foliar fertilizer on corn, what is the fastest foliar fertilizer to spray at t

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. User feedback:

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 use enough, it will definitely be better.

By the way, in the seedling stage of crops, 50 ml of fish protein cat food + 40 grams of potassium dihydrogen phosphate - bucket water, foliar spraying, 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.

Foliar fertilizer spraying on corn is necessary. Corn needs a lot of macro, medium and trace elements in the growth process, and what elements are lacking should be judged according to the performance of corn, and foliar fertilizers containing these elements should be sprayed on the foliar surface in a targeted manner. In addition, the application of foliar fertilizer can quickly replenish the nutrients of maize, which is faster than that of soil fertilization.

Corn foliar spray is useful. Foliar fertilizer can supplement the nutrients needed by corn, enhance photosynthesis, improve disease resistance, promote growth, improve quality and increase yield.

It is important to note that foliar fertilizer should be sprayed at the right concentration and frequency, as excessive spraying may have negative effects.

Summary. Hello! Foliar fertilizers at the seedling stage of corn commonly use potassium dihydrogen phosphate, potassium sulfate, zinc sulfate, copper sulfate, brassinolide, etc.

The bottom fertilizer at the seedling stage is sufficient, and the corn seedlings generally do not lack fertilizer, and the need to spray foliar fertilizer is the herbicide pesticide, and the other is after the damage of pests and diseases. Before corn sowing, it is necessary to play closed herbicides, some herbicides have a long half-life, after corn emerges, resulting in corn wilting, yellow leaves, red leaves, white leaves, at this time, potassium dihydrogen phosphate, brassinin lactin should be sprayed to regulate corn to restore growth, reduce herbicide damage, promote corn to restore normal metabolism, respiratory circulation, transpiration photosynthesis, and promote corn chlorophyll production. The corn production cycle can be foliar spray potassium dihydrogen phosphate and brassinin 3 times.

300 grams of 98% potassium dihydrogen phosphate + 20 grams of brassinolide mixed with water 30 kg of foliar spray each time. Spraying potassium dihydrogen phosphate and brassinolide at the seedling stage can effectively prevent crude shrinkage.

Hello! Foliar fertilizers at the seedling stage of corn commonly use potassium dihydrogen phosphate, potassium sulfate, zinc sulfate, copper sulfate, brassinolide, etc. The bottom fertilizer at the seedling stage is sufficient, and the corn seedlings generally will not lack fertilizer, and the need to spray foliar fertilizer is the herbicide pesticide, and the other is after the damage of diseases and pests.

Before corn sowing, it is necessary to play closed herbicides, some herbicides have a long half-life, after corn emerges, resulting in corn wilting, yellow leaves, red leaves, white leaves, at this time, it is necessary to bridge the trap spray potassium dihydrogen phosphate and brassinin lactin to regulate the recovery of corn growth, reduce herbicide damage, promote corn to restore normal metabolism, respiratory circulation, transpiration photosynthesis, and promote the production of corn leaf green orange polyphyton. The corn production cycle can be foliar spray potassium dihydrogen phosphate and brassinin 3 times. 300 grams of 98% potassium dihydrogen phosphate + 20 grams of brassinolide mixed with water 30 kg of foliar spray each time.

Spraying potassium dihydrogen phosphate and brassinolide at the seedling stage can effectively prevent crude shrinkage.

The seedling stage suffers from pests and diseases, and at the same time of using fungicides and insecticides, potassium dihydrogen phosphate and brassinolide can be sprayed. At the seedling stage, trace elements such as copper sulfate, zinc sulfate, potassium sulfate and other trace elements can be sprayed on the foliar surface, which can enhance the immunity and stress resistance of corn, and copper sulfate has a bactericidal effect and has an inhibitory effect on corn virus. Corn seedlings can be sprayed with 10% potassium sulfate, 10% zinc sulfate mixed with 30 kg of water solution, copper sulfate, boron fertilizer can be diluted twice, sprayed with 30 kg of water.

Foliar spray urea can be used at the seedling stage of corn, in the case of nitrogen deficiency fertilizer, but for nitrogen, phosphorus, and potassium tolerant fertilizer, it is best to apply it under the roots. Corn is a potassium-loving spring crop, in the seedling stage can be foliar imitation residual spray high concentration potassium fertilizer and water-soluble nitrogen fertilizer, can promote the stalk thick, the root system is developed, lodging resistance, drought resistance, farmers usually foliar spray potassium dihydrogen phosphate, brassinolide lipid more. The growth cycle of corn mainly depends on bottom fertilizer and top dressing.

The growth of corn seedlings is weak, and the soil moisture is not good, so it is necessary to spray foliar fertilizer to enhance corn immunity and stress resistance, but there are few cases of foliar spraying foliar fertilizer at the seedling stage in actual production management, and foliar fertilizer is sprayed more before maize tasseling to the male and female differentiation stage. Late premature senescence of corn can also be sprayed with foliar fertilizer.

Corn can be sprayed with boron fertilizer at the beginning of pollination or early flowering to increase the pollination rate. Spraying pesticides and foliar fertilizers is prohibited during the full flowering period.

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.

Foliar fertilizer believes that farmers and friends engaged in cultivation are no strangers. Foliar fertilizer is now sprayed on many crops, and the effect of foliar fertilizer is not bad. However, many farmers have not yet mastered the best time to spray foliar fertilizer.

Today, let's talk about when is the best time to spray foliar fat corn? What are the precautions for spraying corn with foliar fertilizer? Farmers and friends engaged in planting are no strangers.

Many crops are now sprayed with foliar fertilizer, and the impact of foliar fertilizer is not bad. However, many farmers have not yet mastered the best time to spray foliar fertilizer. Today, let's talk about when is the best time to spray foliar fat corn?

What are the precautions for spraying foliar fertilizer on corn? 1.Foliar fertilizer spraying on corn?

Generally speaking, when spraying foliar fertilizer on corn, the spraying time should be selected, and foliar fertilization should be carried out in wet weather to ensure that the leaves are moist for 30 to 60 minutes.

Spray before 10:00 a.m., after 5:00 p.m., and spray all day long on cloudy days without wind.

2.Corn foliar fertilizer No. 1 spraying technology and precautions. Foliar fertilizer, corn spraying period should choose the critical period of foliar fertilizer corn, the suitable part of corn should be sprayed in the flowering and filling period, and sprayed in time when there is a fertilizer disease.

It is mainly sprayed on the stems and leaves of corn, and the front is mainly sprayed on both sides. Try to spray evenly and carefully and carefully, and do not miss or repeat spraying. 2.

Corn and foliar fertilizer varieties: urea, potassium dihydrogen phosphate, superphosphate, potassium sulfate, plant ash leaching solution and some micro fertilizers can be used for foliar fertilizers, while chloride-containing, volatile and insoluble fertilizers such as ammonium bicarbonate, ammonium chloride, calcium, magnesium, phosphorus, etc. are not suitable for foliar fertilizers. 3.

The amount of foliar fat corn spraying should be sufficient, and the number of times should not be too small. It is best to fertilize the foliar when the fertilizer runs down from the foliar surface but does not run down.

4.The spraying concentration of corn foliar fertilizer is: urea 2%, potassium dihydrogen phosphate, ammonium sulfate, ammonium molybdate, borax, zinc sulfate.

At the same time, 10% grass and wood gray water, 10% chicken manure, 10% 20% rabbit manure or rotting human urine can also be added when spraying fertilizer outside the roots, which also has an obvious effect of increasing yield. 5.When spraying foliar fertilizer on corn, pay attention to the reasonable mixture.

Mixing two or more fertilizers by adding active agents can improve fertilizer efficiency, and mixing fertilizers and pesticides can also improve work efficiency. However, care should be taken not to mix alkaline, acidic, and active fertilizers and pesticides. A small amount of active agent is added to the fertilizer (a small amount of washing powder can be added) to reduce the surface tension of the fertilizer solution.

The above are the main points and precautions for spraying foliar fertilizer on corn, which interested farmers can share and collect.

1. Appropriate spraying concentration. The suitable concentrations for foliar fertilization are: urea, potassium dihydrogen phosphate, ammonium sulfate, ammonium molybdate, borax, zinc sulfate.

At the same time, 10% grass and wood gray water, 10% chicken manure, 10% 20% rabbit manure or rotting human urine can also be added when spraying fertilizer outside the roots, which also has a more obvious effect of increasing yield.

2. The amount of spraying liquid should be too small. Foliar fertilization is good when the fertilizer is about to run down from the foliar surface but it is not flowing. Generally, 45 kg of fertilizer per mu.

Even if 1% urea solution is sprayed, the amount per mu is only 2 kg of urea, sprayed 2 3 times in a row, with an interval of 7 10 days.

3. Choose a good time for spraying. Foliar fertilization should be carried out in relatively humid weather, ensuring that the leaves are moist for 30-60 minutes. It should be sprayed before 10 a.m. and after 5 p.m., and can be sprayed throughout the day on cloudy days when there is no wind.

4. Spraying selection of critical periods, appropriate parts of corn should be sprayed in the flowering and filling period, and spraying should be done in time when there is a certain defertilization disease. It should be sprayed on corn stems and leaves, and both sides should be sprayed mainly on the front. The spraying strives to be meticulous and even, without missing spraying or respraying.

Corn foliar fertilizer spraying should generally be carried out 3 5 days before corn tasseling, generally with 2 bottles of Fulvi 655 or Fulvico foliar fertilizer per hectare sprayed on the top leaves of corn.

Some trace element fertilizers such as borax are not easily soluble in cool water and are only easily dissolved when the water temperature is above 40. When preparing the borax solution, it should be dissolved with a small amount of warm water and then diluted to the required concentration with water, so that the fertilizer solution can be uniform.

The spraying time should generally be selected in the morning of a sunny day or after 4 p.m. without wind, or you can choose cloudy weather, so that the longer the solution is moistened on the leaves, the better.