How long does it take for fertilizer to be applied to the ground? What to look out for?

Quick results are good fertilizers", the author said in the survey, many farmers stubbornly believed. This is a very serious misunderstanding of using fertilizer, in fact, on the contrary, the quick effect is not necessarily a good fertilizer. Fertilizers need to be applied for a long time, and it is best to apply them in proportion according to the physiological characteristics of crops at various stages, and there is no need to blindly pursue quick results.

Now many unscrupulous manufacturers have figured out the psychology of farmers, adding a large number of hormones or adding a large number of inferior nitrogen fertilizers to the fertilizers they make, but the label description says that the ratio of nitrogen, phosphorus and potassium is very good, or contains high nitrogen and high potassium, etc., and farmers will naturally have a quick effect after application.

However, few farmers have noticed that after application, this type of fertilizer often causes problems such as crop growth, poor flower bud differentiation and premature senescence, which reduces the overall yield. Therefore, the author hereby reminds farmers that they must choose rationally when buying fertilizer, and the quick effect after application is not necessarily a good fertilizer.

Ammonium carbide:Effective on the same day, fertilizer effective period of 15 days;

Ammonium chloride:It is effective in three days, the fertilizer effect period is 25 days, and the fertilizer is removed in the later stage;

Urea:Seven days to take effect, fertilizer effect period of 45 days;

Compound fertilizer:It takes 10 days to take effect, and the fertilizer effect period is 90 days;

Bio-fertilizer:Generally, it is effective in about one month, and the effect is not very obvious in crops with long growth cycles, but the fertilizer effect can last for 6 to 8 months;

Hormones:The effect is fast, but it does not have much nutrition on its own, and it does not have much practical help to increase production.

Fertilizers need to be applied for a long time, and it is best to apply them in proportion according to the physiological characteristics of crops at various stages, and there is no need to blindly pursue quick results.

However, few farmers have noticed that after application, this type of fertilizer often causes problems such as crop growth, poor flower bud differentiation and premature senescence, which reduces the overall yield.

Especially for the product of biological fertilizer, after being applied to the soil, the bacteria need a process to adapt to the soil environment and reproduce, and if the temperature is relatively low, the effect will be slower, but it cannot be considered a bad fertilizer. Even, some crops after the use of biological fertilizer, the early growth is not as good as normal fertilizer, especially wheat and some vegetables that need to be transplanted, what is the reason?

Chemical fertilizer is applied to the soil for crop absorption, and its utilization rate is generally not high, such as the utilization rate of nitrogen fertilizer for rice is about 50%, and the utilization rate of phosphate fertilizer is 20 30. If organic fertilizer is used with deep fertilization, the utilization rate of fertilizer can be greatly improved and the loss of fertilizer can be reduced. Deep fertilization is characterized by the application of fertilizer deep into the tillage layer and slowly absorbed and utilized by crops.

There are four ways to apply deep fertilization:

This is a way of applying basal fertilizer at a deep level. The method is to drain the field water to near dry before plowing, then spread the fertilizer evenly on the field, then plough and rake it, and then plant the seedlings.

It generally takes 5 to 10 days to take effect, and the degree of effect varies depending on the temperature. In order to reduce the volatilization and loss of fertilizer, it is best to apply fertilizer after rain or watering, which can improve fertilizer utilization.

Different fertilizer crops have different absorption rates. Compound fertilizer:

Decomposes slowly, and crops absorb it for life; Urea:

It needs to be transformed, and it can be absorbed in about 15 days; Ammonium bicarbonate.

Rapidly absorbed within a week; Foliar fertilizers can be absorbed within a few hours.

1.Generally, the fertilizer will work two hours after it is applied to the ground, but it will also delay the effect. For example, when we have a drought and it doesn't rain for a long time, the action of fertilizer slows down and delays the action.

The reason is that the land is relatively dry, and the fertilizers applied to the land do not absorb our crops quickly.

2.Usually, chemical fertilizers are applied to the soil and decompose into ionic states such as ammonia and nitric acid when exposed to water.

Ammonia, potassium oxide and phosphorus pentoxide.

It takes a week for crops to be absorbed and utilized. There are many types of fertilizers. Different fertilizers have different absorption times after spraying on the ground. In general, ammonium bicarbonate can be absorbed on the same day after spraying, ammonium chloride.

It takes about 3 days for fertilizer to be absorbed, urea for about 7 days, compound fertilizer for about 10 days, and biofertilizer for about 30 days.

3.If you want it to dissolve quickly.

1) Use ammonium bicarbonate and ammonium chloride fertilizers.

Ammonium bicarbonate: effective on the same day, fertilizer effective period of 15 days; Ammonium chloride: effective in three days, fertilizer effective period of 25 days, later fertilizer removal; Urea:

7 days onset, fertilizer effective period 45 days; Compound fertilizer: effective for 10 days, fertilizer effective for 90 days; Biological fertilizer: generally effective in about a month, the effect on crops with a long growth cycle is not very obvious, but the fertilizer effect can last for 6 to 8 months; Hormones:

The results are fast, but there is not much nutrition, and it does not help much in increasing production. In fact, chemical fertilizers need to be long-term**. It is best to apply according to the physiological characteristics of the crops at each stage.

There's no need to blindly pursue fast availability.

2) Fertilize on rainy days.

We try to choose rainy days when applying fertilizer. In both cases, fertilization works best, and our fertilizer can be fully absorbed by the crop. After rainfall, fertilizer and rainwater can be fully combined and fully absorbed by the crops in about two hours.

4.The amount and degree of absorption are closely related to the environment and the water solubility of fertilizers. For example, the crystalline form is easier to inhale plants than the powder form.

It takes about 5 to 10 days to absorb it. Because these fertilizers need to undergo a series of transformations so that they can be absorbed by the crops.

This fertilizer should be distinguished, if it is a farmhouse fertilizer, it will take about 5 days to be absorbed and utilized by plants, if it is a fertilizer, it is generally effective every other day, because the fertilizer effect of chemical fertilizer is very fast.

It's about 15 days, pay attention to the amount when fertilizing, don't apply too much fertilizer at one time, be sure to water in time, pay attention to the temperature, and don't have particularly serious compost.

This depends on the condition of the soil, which will be fully absorbed within a few days, because these things will melt when exposed to water and can be quickly absorbed by plants.

15 days to a month. Because some fertilizers have different compositions, the digestion time of fertilizers in the field is not good.

The duration of manure in the soil is about one month. Manure is organic fertilizer, also known as farmhouse fertilizer, including compost.

Green manure, sheep manure, pig manure, horse manure, cow manure, human manure, poultry manure, etc., are all cooked manure, also known as organic fertilizer. These fertilizers play an irreplaceable role in agricultural production, which can increase the content of soil organic matter, improve the soil, loosen the soil, improve soil fertility and water retention capacity, and increase various trace elements required by crops.

<> organic fertilizer is a kind of late-acting fertilizer, the fertilizer effect time is long, does not contain any chemical synthetic substances, long-term use can improve the quality of agricultural products, can improve the drought resistance, disease resistance, insect resistance of crops, and greatly improve the yield of crops. The amount of organic farm fertilizer is large, 3,000 to 4,000 kg per mu is needed, and it can be effective for a long time after application, if the effect gradually decreases after two years, it needs to be supplemented. When applying organic fertilizer, the following issues should be noted.

Although there are many types of nutrients in organic fertilizer, they are unbalanced and cannot meet the requirements of high yield and high quality of crops. Although the nutrient content of organic fertilizer is sufficient, the content is low, and the decomposition in the soil is slow, and it is difficult to meet the demand of crops for nutrients in the case of insufficient amount of organic fertilizer.

Organic fertilizer needs to be fermented, many organic fertilizers have bacterial eggs, and weed seeds, some organic fertilizers are not conducive to the growth of organic matter, so they should be fermented by compost and processed before they can be used. The use of organic fertilizer is contraindicated, and well-rotted organic fertilizer should not be mixed with alkaline fertilizer and nitrate nitrogen. Attention should be paid to the use of human excreta and urine.

Human feces and urine fertilizer has high nutrient content and fast decay, but it is not suitable for potatoes, sugar beets, tobacco, and concubines.

Human feces and ammonium bicarbonate in plant ash.

and other alkaline substances.

Due to the slow decomposition of organic fertilizer, it belongs to the delayed fertilizer, and the amount of available fertilizer must be increased when using, I have a neighbor, he has six acres of land, half of which is chicken manure, no chemical fertilizer, half of which is used with chemical fertilizer, and the result is that this half of chicken manure does not have this half of chemical fertilizer on the high yield, the yield of chicken manure is 600 catties, and the yield of chemical fertilizer plots is 750 catties. Another neighbor is on chicken manure and chemical fertilizer, and the yield per mu reaches 1100 catties, which shows that the later effect of farm fertilizer is combined with the rapid effect of chemical fertilizer to achieve high yield and harvest.

It is about two years, and if the fertilizer is effective, it can be refertilized, or it can refer to the application of some potassium fertilizer, or some phosphate fertilizer.

In two or three years, this is mainly determined according to the choice of plants, and the consumption of nutrients by different plants is not the same, and the fertilizer effect needs to be re-topdressed.

It is necessary to look at the specific condition of the soil and the state of plant absorption, the situation is different, and the environment will affect the aging period; If the fertilizer effect expires, you can apply fertilizer again.

How long does it take for fertilizer to work in the soil? This question is really hard. There is a transformation process when fertilizer is applied to the soil, and there is also a process from absorption to utilization of crops, and it is affected by the natural environment.

The impact is larger. The effect mentioned here refers to the absorption of crops, and only the absorption of crops has an effect. If you look at the theoretical data from the laboratory, whether it is organic fertilizer or inorganic fertilizer, whether it is a simple chemical fertilizer or compound fertilizer.

may have a time-specific effect. But when fertilizer is put into the soil, it is difficult to say how quickly it can be absorbed by crops due to the interference of various factors.

<>We all know that melted fertilizer is absorbed by crops, which has a lot to do with temperature and soil moisture. For example, the fertilization efficiency in winter and summer is not the same, after fertilization, watering or not, or the amount of rain, soil moisture has a great impact on fertilization efficiency. In addition, the variety and nature of fertilizers are different, and the melting time and fertilization effect of each fertilizer are also different.

After fertilizer is applied to the soil, whether the crop can be quickly absorbed and utilized is also a problem, and the effect will not be seen without absorption. Although the fertilizer applied is good, the soil environment is poor, the crops can not absorb well, or due to the antagonism between the fertilizer elements, or the crop roots do not absorb well, and the nutrients of the fertilizer cannot be effective. For example, orange soluble phosphate fertilizer is difficult to melt when applied to alkaline soils in the north, while acidic soils in the south melt soils that have been absorbed by crops.

In short, for the question of how long the fertilizer can be effective in the soil, because the fertilizer into the soil, the influence of various factors is relatively large, it is not easy to generalize, and it needs to be analyzed on a case-by-case basis.

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I think it takes about 10 days to see results, because fertilizer is very important for plants, and the amount of fertilizer can also determine the growth rate of a plant, so I think it takes about 10 days to see results.

I think it can be effective in 9-15 days, and it depends on the soil temperature, humidity, and fertilizer quality.

It will take about three days. Because during this period, the fertilizer will slowly take effect, and it will have an impact on the plant.

In particular, after the application of biological fertilizer in the soil, the fungus adapts to the soil environment and reproduces a process, and if the temperature is relatively low, the effect will be slower. Even, some crops after the use of biological fertilizer, the growth is not as good as normal fertilizer, especially wheat and some vegetables that need to be transplanted, what is the reason?

Crop growth is regular, deep roots can defeat the first leaves, early rooting, mid-term long stems, later fruiting, if the fertilizer is unreasonable or the use of hormones, when the long root system, the stems and leaves are vigorous, the root system is weak, then the stems and leaves are only a symptom, the result will only lead to premature aging and death of crops. We are looking for yield and quality, not stems and leaves, and many people complain that my crops are growing so well, while others are growing mediocre, why is my yield not as high as others? Then you should think about the problem of using fertilizer yourself.

In short, when we choose fertilizer, we can not judge the quality of a product by its growth alone, but understand that the ultimate goal is yield and quality, and fertilizer that can increase yield and ensure quality is a good fertilizer.

Urea is a molecular nitrogen fertilizer, crops can not directly absorb a large amount, must be applied to the soil, under the action of urease secreted by soil microorganisms into ammonium carbonate, (that is, often said ammonium nitrogen fertilizer), crops can be absorbed and utilized in large quantities. In short, according to the characteristics of urea that needs to be transformed after being applied to the soil, in order to better exert the fertilizer effect, it should be converted into ammonium nitrogen in time according to specific conditions for crop absorption and utilization.

Deep application of urea. Whether it is used as base fertilizer or top dressing, it should be deeply covered with soil, and the fertilization depth of 10-12 cm is appropriate; Deep application of urea can significantly improve the utilization rate. According to the test, urea superficial or shallow application of 2-3 cm, the utilization rate is only 30%; The fertilization depth is 5 cm, and the utilization rate is 45%; Apply 10-20 cm deep, and the utilization rate can reach 65%.

Mix urea. The combination of urea and organic fertilizer, phosphorus and potassium fertilizer and trace element fertilizer can maintain soil nutrient balance, maximize nutrient utilization efficiency and increase fertilizer yield.