What are some tips for fertilizing farmland? How to apply fertilizer will double the fertilizer effi

We must pay attention to the appropriate time, we must ensure that the bottom fertilizer is sufficient, and we should also top dressing in time, we must choose the right fertilizer according to the agricultural products planted, and do not use fertilizer when the temperature is relatively high, the wind is relatively strong, and the rain is relatively heavy.

Pay attention to the steps of fertilization, understand the situation of fertilization, pay attention to the amount of fertilizer, learn to take turns fertilizing, pay attention to the effect of fertilization, and you can sprinkle it. Fertilize according to the composition of the fertilizer, or understand the condition of the crop, and choose the fertilizer that is suitable for the crop.

It is necessary to buy suitable fertilizers, pay attention to nutrition, pay attention to the area of the land, pay attention to the method of fertilization, learn to mix seeds, and be sure to prevent various germs in advance. Fertilize according to the area of the land, pay attention to the condition of crops, and use chemical fertilizers reasonably.

It is necessary to pay attention to the growth of plants, to fertilize according to the actual situation, to fertilize evenly, to pay attention to the time of fertilization, to pay attention to the surrounding situation, and to choose the appropriate fertilization position, so that the fertilizer efficiency can be doubled.

How to fertilize farmland scientifically? What should I pay attention to? First of all, it is important to replenish what is missing and how much fertilization is missing.

Do not give preference to nitrogen, phosphorus and potassium and do not apply medium and trace elements. In addition, fertilization should be appropriate, not the more it is applied, the more targeted it is. Many farmers would think that the more fertilizer they applied, the better the crops would grow.

This is not the case. On the contrary, excessive fertilization can easily cause fertilizer loss. In general, we divide the fertilizers we apply into two categories:

Fertilizers and organic fertilizers. Most people think that organic fertilizers are effective and less harmful to the soil, but many people think that applying chemical fertilizers has a quick effect. In fact, the mix of chemical fertilizers and organic fertilizers will work better.

The main point of scientific fertilization is that although chemical fertilizers and organic fertilizers are well mixed, they cannot be blindly mixed. There are many things to look out for. Usually, ammonium bicarbonate and human feces are added to the compost.

This application is not only conducive to the reproduction of microorganisms, but also conducive to promoting the decomposition of organic fertilizer and the release of various nutrients, and promoting crop growth. Ferrous sulfate, which is added to human feces and urine, protects the fertilizer from nitrogen volatilization. When a person's feces and urine are mixed with superphosphate or calcium magnesium phosphate, both can effectively improve fertilizer efficiency through chemical reactions.

In addition, the application of superphosphate and calcium magnesium phosphate mixed with compost and degummed after degumming can prevent phosphorus ions from being fixed by sludge, and the fertilizer efficiency will be more obvious.

After the key point of scientific fertilization, remember not to get too close to the crop when fertilizing, so as not to burn the root system. Many farmers have the misconception that the closer you are to the roots and stems of a crop when applying fertilizer, the easier it is to be absorbed. In fact, this method of fertilization is very harmful to crops.

It does not promote the growth of crops, but it also burns the root system and seedlings. Therefore, this should be avoided in the future.

Avoid the application of phosphate fertilizers.

Phosphorus has very little fluidity in the soil, so it is particularly easy to be adsorbed and fixed by the soil surface by spraying, which greatly reduces the fertilizer efficiency of phosphorus.

Avoid applying excessive chlorinated fertilizers to sensitive crops.

Tobacco, citrus, potatoes and grapes are fertilizer-sensitive crops. Do not apply too much chlorine fertilizer at one time, otherwise it will affect the normal growth of the plant.

Avoid fertilizing before heavy rains.

Because after fertilization, if there is a heavy rain or shower, the fertilizer can easily be washed away by the rain, resulting in nutrient loss.

Avoid micro-fertilization. The application of micro-fertilizers such as zinc, molybdenum, and boron can solve the problem of element deficiency in crops, but if only micro-fertilizers are applied, it will cause malnutrition and hinder the growth and development of crops.

It needs to be determined according to the growth of the plant, and you must pay attention to the amount of fertilizer, pay attention to the time of use of fertilizer, and pay attention to whether it rains.

Do not use high-concentration fertilizer, be sure to grasp the time of fertilization, do not miss the best time, but also pay attention to follow-up remedies, if you use high-concentration fertilizer, you must water in time.

It is necessary to pay attention to the specific situation of the land and the growth of plants, so that we can better fertilize and water reasonably, so that we can grow better.

1. Scattering and giving.

1) Spreading is generally used to apply basal fertilizer to farmland before planting crops, or deep application, strip application, hole application, etc. cannot be used during the growth period of crops with high density. The advantage is that it can be evenly distributed to the soil tillage layer, which is conducive to the early absorption and utilization of the root system of crops, and its disadvantage is that the contact area with the soil is large, and the phosphorus and potassium are easy to be fixed by the soil. Nitrogen fertilizer is easy to be lost when topdressing is sprinkled, and the mobile infiltration ability of phosphorus and potassium fertilizer is poor, and it is difficult to be absorbed and utilized by crop roots on the soil surface.

2) strip application is generally used to sow in layers before planting crops, so that the fertilizer is less than 1 2 inches in seeds or seedlings, or after the crop is sown, the ditch is about 5 10 cm deep, and the soil is covered after application. Its advantages are that the fertilizer is more concentrated, the soil is less fixed, and it is conducive to the absorption and utilization of crops in the root layer of crops, so the fertilizer efficiency is relatively high.

2. Acupuncture. A method that allows the fertilizer to be applied more intensively than strip application. In order to avoid the higher concentration of fertilizer in the hole to damage the crop roots, the organic fertilizer applied by the hole must be fully decomposed in advance, the fertilizer must be appropriate, the position and depth of the fertilizer hole should be paid attention to keep an appropriate distance from the crop roots, and it is best to combine irrigation before covering the soil after fertilization.

3. Rotational application. Rotation is generally suitable for perennial woody crops, especially fruit trees. Rotation application is generally centered on the trunk, along the aboveground canopy margin in the corresponding field surface excavation of wheel-shaped fertilization ditch, after fertilization cover soil, can also intermittently dig the trunk as the center into a symmetrical 2 4 meters of a certain length of crescent-shaped ditch. The depth of the furrow varies with the age of the tree and the depth of the root system, and it is generally advisable to apply it to the vicinity of the absorbing root system to reduce the damage to the roots.

The area of the fertilization furrow is generally wider than that of the field strip. When a large amount of organic fertilizer is applied to fruit trees in autumn and winter, fertilizer can also be applied in a circular area under the canopy in combination with cultivated loose soil.

4. Drenching. It is to dissolve the fertilizer in water to form a fertilizer solution, and then pour it into the soil surface where the roots of crops are concentrated, which is mainly used for nitrogen fertilizer topdressing of leafy vegetables. For phosphorus and potassium fertilizer, due to the small mobility, the basal fertilizer should be the main fertilizer, and the method of leaching should not be used, and a small part can also achieve the purpose of topdressing outside the roots.

5. Spraying. Also called extra-root topdressing, mainly used for trace element fertilizer, the dosage is more economical, can avoid soil fixation, fast nutrient absorption, high efficiency, easy to control concentration, reduce pollution, in the later stage of the crop root absorption capacity is weak, foliar spray potassium dihydrogen phosphate solution. It can supplement phosphorus and potassium nutrients, which has the effect of increasing grain (phosphorus) weight and increasing yield.

Spreading is a simple and labor-saving method of fertilization. For example, the rice planted at my family is sprinkled with sufficient basal fertilizer when the seedlings are thrown, and the topdressing and later management are all used when the seedlings are green. Spreading fertilization is the most effective for water-grown crops.

After the rain, the fertilizer is soaked by the rain and decomposes and then seeps into the soil, and then it can be absorbed by the roots of the plant, because it is on the surface, it is exposed to the sun and rain, and some of the nutrients will be lost.

<> fertilizing crops, it depends on what stage of growth and development the crops are, whether they need fast fertilizer effect or slow fertilizer effect, and it depends on the specific fertilization environment. Whether it is dryland crops, or paddy field crops fertilization, the best way is to reapply the bottom fertilizer, the amount of base fertilizer, must account for 70 80% of the crop growth period, pay attention to the advantage of applying the bottom fertilizer is that not only save labor and time, but also the crop stamina is enough, not easy to be infected with pests and diseases.

Of course, there are many kinds of crops, such as rice, wheat, corn, etc. Vegetables include greens, lotus couplings, peppers, cucumbers, etc. Because there are many types of crops and their growth habits are also different, the way of fertilization is also different.

What fertilization method should be taken should also be combined with the weather is the best. For example, in high temperature and dry weather, it is best to fertilize with a dropper, or apply the root application in the watering hole, or it can be applied with water, and for rainy weather, it is generally best to fertilize outside the roots to avoid fertilizer leaching.

For crops with sparse planting density and short seedlings, fertilization can be applied with fertilization equipment depending on the situation, and various chemical fertilizer strips are mainly applied. For higher crops, it is not suitable to use machinery, and manual "hole application" can be implemented. Factors such as fertilization method, fertilization object, fertilization variety, fertilization time, etc., should be taken into account.

For each crop, the fertilization method is different, the variety is different, and the time is different, and the effect is different.

Don't be one-size-fits-all and self-defeating. In high temperature and dry weather, it is best to fertilize with a dropper, or apply the root application in the watering hole, or it can also be applied with water, and for more rainy weather, it is generally best to fertilize outside the roots to avoid fertilizer leaching.

It is not possible to use only a single waste material, in addition, it is necessary to apply more fertilizer according to the needs of the plant, and it is not possible to apply foliar fertilizer at noon in high-risk weather, which is easy to burn the plant. When fertilizing crops, it is necessary to grasp the time well, and you need to have a certain understanding of temperature and humidity.

The first thing is to find a suitable time for fertilization, and you must grasp the amount of fertilizer, and generally what does it mean in a month, and then you should add more water, and then you must also increase the fertility of the soil.

The fertilization principle of Yanhuso is:

Apply sufficient basal fertilizer, reapply winter fertilizer, and skillfully apply seedling fertilizer.

Apply sufficient basal fertilizer. The growth period is short, from the emergence of seedlings to the death of plants in 80 to 90 days. Sufficient basal fertilizer must be applied before planting.

2,500 3,000 kg of rotting pig pen fertilizer and 50 kg of superphosphate were applied every 667 m2 on the ploughed furrow, and then the fertilizer was turned into the soil. The base fertilizer should not be turned too deep, because the root system of Yanhusuo is concentrated in the topsoil of 12 18 cm, and if it is turned too deep, the root system can not absorb nutrients, and the purpose of applying base fertilizer can not be achieved.

Heavy application of winter fertilizer. Around the beginning of winter, the underground stems of the Huso have begun to form. Apply more winter fertilizer to promote the vigorous growth of underground stems, more branches, and more underground stem nodes, which is an important guarantee for obtaining a bumper yield.

Wax fertilizer is generally applied from late November to early December. First, the topsoil is gently cultivated once, then the cake manure is evenly spread on the furrow surface at a rate of 50 kg per 667 m2, then a layer of pig pen manure is spread and 2500 3000 kg per 667 m2. The manure block of the pig pen is loose and easy to break, which is conducive to the emergence of seedlings.

Then apply 1000 1500 kg of human feces and urine, and cover with a small amount of soil. This fertilization can also keep the soil loose and can prevent freezing and protect seedlings.

Skillful application of seedling fertilizer. Before and after the beginning of spring, the seedlings penetrate out of the topsoil, the seedlings that have just been unearthed are light purple red, and the seedlings are about 3 cm high after the leaf development to be topdressed in time. It can be carried out in the morning and evening, and the sun is strong at noon, so it is not suitable for top dressing, so as not to cause the death of seedlings.

1000 1500 kg per 667 m2 of human feces. After looking at the seedling top dressing, such as the seedling leaves are pale yellow-green, the growth is weak, to apply supplemental fertilizer in time, every 667 meters 2 human manure 500 1000 kg; If the seedlings are strong and the leaves are dark green, they do not need to be applied again.

This should indeed be scientific and reasonable, and generally speaking, the base fertilizer must be sufficient. Some of the fertilizers we use, generally speaking, have a limited nutrient and cannot provide more nutrients to crops for a long time, so we must have this sufficient base fertilizer. The reason why we need to resist fertilizer is because the crops we grow generally have a relatively long growth cycle, so it needs to absorb some nutrients for a long time, so as to ensure its growth.

Naturally, when we grow crops, we need about 6,000 8,000 catties of organic fertilizer per acre. For the choice of organic fertilizer, you can choose this chicken manure, sheep manure, cow manure and even duck manure, but these organic fertilizers should have one thing to pay attention to, can not be used directly, because direct use will be easy to breed some germs, insects will affect crops, so it must be decomposed. If it is not decomposed, then a large amount of heat is easy to appear when the organic fertilizer is decomposed, and it will easily lead to seedling burning.

Organic fertilizer can not fully meet the needs of crop growth, because some nutrients are lacking after all, so reasonable top dressing is very important. The compound fertilizer we use has a variety of nutrients, such as potassium, magnesium, phosphorus and other nutrients, when the growth of crops needs some nutrients are insufficient, it is easy to appear yellowing and withering, which will also directly affect the growth of crops, so we have to judge whether there is a lack of a certain element according to its appearance for proper top dressing. <>

In addition to this compound fertilizer nitrogen fertilizer, we also need to add some trace element fertilizer. The collocation of fertilizer must be balanced, organic fertilizer and inorganic fertilizer are combined, with phosphate fertilizer, potassium fertilizer also needs to be used with some trace element fertilizer, so as to effectively ensure the adequacy of fertilizer, can meet the normal growth of crops, and finally can have a good harvest.