Fertilizer damage will affect the growth of crops, how to deal with crop fertilizer damage?

The most important cause of fertilizer damage to crops is also caused by unscientific fertilization. In the case of fertilization, we should control chemical fertilizers and carry out effective and reasonable fertilization according to the regularity of fertilizer demand of different crops and the fertilizer supply characteristics of the soil layer. Before fertilization, we should first accurately measure the soil layer and adjust the concentration value of various fertilizers.

In particular, basal fertilizer and leaf fertilizer should not be used too much. It can reasonably increase the amount of organic fertilizer, but in the case of organic fertilizer, it must be sufficiently manure. In particular, all kinds of organic fertilizers should be applied in conjunction with organic fertilizers after alcohol.

Subsequently, in the case of fertilization, we need to pay attention to moderately increasing the proportion of microbial fertilizer. Microbial fertilizers generally contain nutrients such as phosphorus-solubility and potassium-solubilizing elements of nitrogen-fixing bacteria, which can inhibit the theme activities of pathogens at the roots of crops. It can also play a good buffering role in the microbial flora of the soil environment.

It can improve the soil structure, reduce the prevalence of diseases, and improve the drought resistance of crops. But in the case of fertilization, we should pay attention to the fertilization method. For example, in the case of applying organic fertilizer, especially basal fertilizer, it cannot be applied immediately, and at least 5 cm of deep fertilization should be maintained.

When planting crops, top dressing is essential. When topdressing, we must pay attention to the fertilization site and maintain a certain distance from the crops. Generally, chemical fertilizers should be maintained at least 10cm before and after the roots, and furrow application should be the dominant.

After topdressing, the soil should be covered in time to prevent damage to fertility. If the soil moisture is not enough, then we need to pay attention to the watering work after top dressing to avoid too much heat generated by the fertilizer and cause root burning. In the case of spraying leaf fertilizer, we should pay attention to controlling the concentration values of various elements.

Planting fertilizer is an indispensable work when planting crops. However, in the case of fertilization, we should note that the fertiliser cannot come into direct contact with the seeds. It is necessary to ensure that the seed fertilizer is in a disordered situation, and it is necessary to pay attention to controlling the amount of seed fertilizer used, and never use too much.

Moreover, it is forbidden to use organic fertilizers such as potassium nitrate and urea solution to carry out seed dressing. The calorific value caused by organic fertilizer is very large, and it is very easy to burn seeds, burn seedlings and other fertilizer damage.

I think they should be killed with pesticides. Or if you need to water more, you can promote the growth of crops. Let them boost their immunity.

You can use some natural fertilizers, so that you can reduce the harm of traditional fertilizers.

Be sure to fertilize reasonably, don't fertilize too much at one time, mainly top dressing, be sure to water frequently, and the light must be sufficient.

To be fertilized reasonably, fertilizer as small as possible many times, to prevent the phenomenon of burning seedlings due to too high concentration, can be kept away from the roots of crops when fertilizing, to prevent fertilizer from having too much heat to cause root burning, in addition to fertilization should be accompanied by watering.

The outstanding characteristics of foliar fertilizer are strong targeting, fast nutrient absorption and operation, which can avoid the fixation of some nutrients by the soil, improve the nutrient utilization rate, and the amount of fertilizer is small, especially the root absorption is hindered by factors such as poor soil environment, excessive water or drought and low humidity conditions, and excessive acid and alkali soil. Urea molecule is small in size, the molecular rate is 4 1 of water, good water solubility, large diffusion, has the effect of softening and moisture on the stratum corneum of crop epidermal cells, and is easily absorbed by crops through the cell membrane. Do not use it at high temperatures to avoid burning the blades.

Urea, like potassium dihydrogen phosphate, has an optimal concentration of one when used as a foliar fertilizer.

Because urea solution is easily absorbed and utilized by crops after spraying, it has always been the first choice for nitrogen supplementation foliar fertilizer. Although urea has many benefits when used as foliar fertilizer, it can also affect and harm crops if it is used incorrectly, such as too dry soil and too much soil moisture, which will affect the conversion rate of amide nitrogen; For example, the external environment is relatively low, which will also affect the conversion rate of amide nitrogen and fertilizer utilization efficiency. Although urea is easily soluble in water, easy to be absorbed by leaves, and has less damage to leaves, it should not be paralyzed when selecting.

Urea with a biuret content of no more than 2% should be used.

<> spray urea concentration on fruit trees such as apples, pears, grapes, etc., that is, add kilograms of urea to the water volume of 100 kg of water, and stir evenly after dissolving the urea. When urea is used for foliar sprays, it is mainly used in the middle and late stages when the ability of crops to absorb nutrients declines, and when root absorption is hindered. In the case of excess vegetative growth of crops, urea spraying is generally not used.

The role of foliar fertilizer should not be underestimated. In the case of the widespread use of drones, the use of foliar fertilizer should be increased. Because it saves time, effort and speed. :

When planting wheat, corn, soybeans, peanuts, fruit trees, etc., foot fertilizer should be applied first to allow the nutrient absorption of crops throughout the growing season.

Excessive foliar fertilizer spraying, the more common harm to crops is that the leaves of crops begin to become brittle, the center or edge begins to yellow, or there are black spots, which can lead to plant wilting, fruit cracking or rotting.

For example, excessive use of sodium metronidazole foliar fertilizer will inhibit the growth of crops, while excessive use of triaconanol foliar fertilizer will lead to foliar curling and root deformity. The mild symptoms of sodium synchlorinate were inhibition of plant growth and poor development of young fruits. Severe pesticide damage is wilting, yellowing and death.

The damage caused by too much sodium nitrate phenol is as follows: the symptoms of mild pesticide damage are inhibition of plant growth and poor development of young fruits; Severe pesticide damage is wilting, yellowing and death. The pesticide damage of sodium compound nitrophenol is rare, mainly on sensitive crops such as peach trees and watermelons, resulting in crop flower drop, fruit drop, hollow fruit, etc.

Signs of damage caused by too much triacosanolWhen the dosage of triasanol is large or the purity is not high, it will lead to the curvature of the sheath at the seedling stage and the deformity of the roots, and the adult plant will show curling of young leaves.

Damage caused by too much brassinolide: poor growth of plants, few and small fruits, and stiff fruits in the later stage.

Signs of damage caused by too much gibberellin: stiff and cracked fruits, astringent fruits, and late ripening of plants.

Pesticides should be sprayed in a timely manner, and at the same time, the right medicine should be prescribed, pay attention to the proportion of pesticides, and should also pay attention to the amount of pesticides.

According to the needs of crops, nitrogen, phosphorus and potassium micro-fertilizer combined application, do not make a single fertilizer concentration too large, apply one to pay attention to uniform sprinkling, two to pay attention to fertilization time, can not be applied under the scorching sun, three soil drought to water after then apply, or deep application and then timely watering.

In the event of fertilizer damage to crops, appropriate irrigation, drainage, and removal of damaged crop parts should be taken immediately.

1. Reasonable fertilization. The main cause of fertilizer damage to crops is caused by unreasonable fertilization. When we apply fertilizer, we should control the fertilizer according to the law of fertilizer demand of different crops and the characteristics of soil fertilizer supply, and carry out reasonable and reasonable fertilization.

Before fertilizing, we first need to measure the soil and adjust the concentration of various fertilizers. In particular, nitrogen and foliar fertilizers should not be over-applied. The amount of organic fertilizer can be appropriately increased, but when applying organic fertilizer, it must be fully decomposed.

In particular, all kinds of farm fertilizers should be applied in combination with chemical fertilizers after fermentation.

2. Apply biological fertilizer. Then when we fertilize, we should also pay attention to appropriately increasing the proportion of biological fertilizer. Biological fertilizers generally contain nutrients such as nitrogen-fixing, phosphorus-solubilization, and potassium solubilization, which can inhibit the activity of pathogenic bacteria in crop roots.

It can also play a good role in regulating the microbial flora of the soil. It can improve the soil structure, reduce the incidence of pests and diseases, and enhance the stress resistance of crops. However, when we apply fertilizer, we should pay attention to the fertilization method.

For example, when applying chemical fertilizers, especially nitrogen fertilizers, do not apply them directly, and maintain a fertilization depth of at least 5 cm.

3. Top dressing. When it comes to growing crops, top dressing is essential. When topdressing, we must pay attention to the fertilization position and keep a certain distance from the crops.

Usually the fertilizer should be kept at least about 10cm away from the roots, and it should be applied deeply. After topdressing, the soil should be covered in time to avoid affecting the fertilizer efficiency. If the soil moisture content is insufficient, then we should also pay attention to watering after top dressing to prevent the fertilizer from excessive heat and root burning.

When spraying foliar fertilizer, we should pay attention to controlling the concentration of various elements.

4. Precautions for planting fertilizer. Planting fertilizer is also an indispensable work when planting crops. However, when applying seed fertilizer, we should pay attention to the fact that the fertilizer should not be in direct contact with the seeds.

It is necessary to ensure that the seed fertilizer is in the case of off-situity, and it is necessary to pay attention to the control of the amount of seed fertilizer, and it must not be applied too much.

If the crop is damaged, it is necessary to water it in time to alleviate the damage, because watering can dilute the concentration of the material.

Only in this way can the effects of fertilizer damage be mitigated on the crops and development.

<> crops can generally be watered in large quantities to dilute the concentration of fertilizer, or a drainage ditch can be dug and then flushed, so that the water can flow out of the field with fertilizer; At the same time, it is necessary to spray an appropriate amount of foliar fertilizer on crops to increase the cultivation and resistance of Qi Chongjia crops.

Fertilizer damage refers to the phenomenon of plant growth being hindered by improper fertilization. Fertilizer damage can be solved by watering in a timely manner.

Excessive fertilization, application of organic fertilizer that is not fully decomposed, excessive concentrated fertilization or long-term application of a large amount of fertilizer, etc., will lead to crop nutrient imbalance, toxic and harmful substances in fertilizer exceed the tolerance of crops, make the soil salinized or acidified, resulting in plant branches and leaves, lodging, aggravation of pests and diseases, or burning seedlings, wilting and other hazards. In the light case, the yield will be reduced, and in the worst case, the plant will die.

The causes of fertilizer damage are related to the type, amount and application of fertilizer, soil moisture conditions, and also related to plant species and growth stage. Most of the sporadic small-area fertilizer damage is caused by improper fertilization, and the large-scale continuous fertilizer damage is usually caused by the toxic and harmful substances in the fertilizer exceeding the plant tolerance capacity or special climatic conditions.

1. Fertilizer damage refers to the phenomenon of hindered plant growth caused by improper fertilization.

2. Treatment:

No organic fertilizer: Organic fertilizer must be decomposed before application, especially poultry manure should be fermented organic fertilizer and chemical fertilizer mixed use.

Rational use of chemical fertilizers: the use must be measured and applied according to the concentration, especially nitrogen fertilizer should not be too much at a time. Foliar spray concentrations should not be too high. Urea is used as foliar fertilizer, and the concentration should not be exceeded, and it can be sprayed wet.

Increase the application of organic fertilizer: the organic fertilizer applied to the soil has a strong adsorption capacity for cations, so that the concentration is not too high, and the buffering capacity of soil nutrients is improved, which can reduce the occurrence of fertilizer damage.

Fertilization distance: about 10 cm away from the root system of the crop, and apply deeply. Soil should be covered immediately after top dressing to avoid seedling burning and loss of fertilizer efficiency at the seedling stage. The soil should be fertilized in time to reduce the concentration and avoid the burning of seedlings.

Fertilizer damage generally refers to the damage caused by excessive fertilizer concentration to plants, or high-temperature burns of plant roots when watering unrotted organic fertilizer fermentation, knowing that the concentration is too large and watering water dilution can be alleviated, but it is too late to find out when I don't know, I'm afraid it will be helpless; As for organic fertilizer, it is best not to use it if it is not rotten.