What kind of fertilizer only needs to be sown when ploughing, and there is no need for top dressing

At present, there are a lot of this kind of fertilizer, and major fertilizer factories are promoting it, which is what we often call controlled-release fertilizer and slow-release fertilizer. Among them, controlled-release fertilizer and slow-release fertilizer are different.

Slow-release fertilizers: Chemical and biological factors that slow down the rate of nutrient release from fertilizers. It is mainly slow-acting nitrogen fertilizer, also known as long-acting nitrogen fertilizer, which generally has little solubility in water.

After being applied to the soil, the fertilizer gradually decomposes under the action of chemical and biological factors, and nitrogen is slowly released to meet the nitrogen demand of crops throughout the growing season.

Controlled-release fertilizer: The water-soluble fertilizer is wrapped in the membrane through the outer coating to release nutrients slowly. When the fertilizer particles of the coating come into contact with the moist soil, the moisture in the soil penetrates through the envelope and enters the interior, dissolving part of the fertilizer.

These water-soluble nutrients diffuse slowly and continuously outward through the micropores on the envelope. The rate of fertilizer release depends on the temperature of the soil and the thickness of the membrane, the higher the temperature, the faster the dissolution rate of the fertilizer and the speed of crossing the membrane; The thinner the membrane, the faster it penetrates.

On the whole, controlled-release fertilizer is better than slow-release fertilizer, and the release of fertilizer nutrients can be regulated according to the nutritional needs of preset crops at different periods.

However, China has a vast territory and complex planting structure, and the performance effect of controlled-release fertilizer on different soils such as moisture, pH and temperature is different. It is recommended that farmers choose controlled-release fertilizers while paying attention to the actual local situation and the current crop growth. For example, if the accumulated temperature of corn is low this year and the maturity period is late, the preset controlled-release fertilizer holding period may not be able to meet the needs of the later stage, so it is necessary to appropriately increase the later fertilizer.

If you look at the fertilizer itself, a lot of fertilizer is fine.

All kinds of slow-release fertilizers and controlled-release fertilizers can actually have such an effect, whether the technical principle is to release nutrients such as nitrogen, phosphorus and potassium in fertilizers slowly through chemical or biological methods, or simply release nitrogen, phosphorus and potassium in fertilizers slowly through physical sulfur coating and other methods, which can play a role in fertilization and long-term effective effect.

However, it is difficult to achieve the goal of growing high-quality crops using only such fertilizer products.

First of all, growing high-quality crops requires the use of a large amount of organic nutrient fertilizers, and the use of slow-release fertilizers is not enough;

Secondly, if slow-release chemical fertilizers are used all year round, it will inevitably cause problems such as unhealthy plant roots and damage or even destruction of the soil microbial ecosystem. When these problems arise, it is simply not enough to rely on a simple application of slow-release fertilizers.

If you must simply fertilize at one time and ignore it later, it is recommended to apply a large amount of organic fertilizer at one time, so as to ensure both yield and quality, and reduce the labor cost of fertilizer.

Soybean.

It is mainly soybeans that produce rhizobia, which can play a role in nitrogen fixation. The roots of leguminous plants produce rhizobia, which improve soil fertility.

The principle is: there are rhizobia in the roots of soybeans, which have nitrogen fixation; At the same time, the fallen leaves of soybeans will quickly rot during the autumn cherry blossom season, which will also enhance the fertility of the land.

Precautions. The soybean no-fertilizer, no-tillage and sparse planting ecological planting method is to plant soybeans on the original ridge without applying chemical fertilizers, plowing the ground, and cultivating the soil. Soybeans are grown without chemical fertilizers because soybeans have their own nodules that fix 78% of nitrogen abrasives in the air.

No-tillage is due to the formation of a thick layer of permafrost in winter, and when the temperature rises in spring, the soil forms a strong natural force of alternating freeze-thaw bright clusters, so that the soil reaches a natural loose state, so there is no need for artificial cultivation. The implementation of the original ridge card sowing can not only save mechanical operation costs, but also especially drought resistance, moisture protection, and seedling protection, which can make the soybean yield per mu reach 400-500 catties.

Growing soybeans produces rhizobia, which can play a role in nitrogen fixation.

Secondary rhizobia in soybean roots can play a role in nitrogen fixation, thereby increasing the uptake of nitrogen fertilizer.

Rhizobia in soybean roots can fix nitrogen in the air and increase soil nitrogen fertilizer.

<> compound fertilizer sprinkled in the ground generally has a fertilizer effect period of about 90 days. Precautions for using compound fertilizer: compound fertilizer containing nitrate cannot be used on leafy vegetables and paddy fields; Compound fertilizers containing ammonium ions should not be applied on saline-alkali land; Compound fertilizers containing potassium chloride or chloride ions cannot be used in chlorine-free crops or saline-alkali land; Compound fertilizers containing potassium sulfate should not be applied in paddy fields and acidic soils, otherwise it will not only affect the fertilizer efficiency, but also may poison crops.

1. How many days does the fertilizer effect of compound fertilizer sprinkle in the ground?

1. The compound fertilizer is sprinkled in the ground for about 10 days and takes effect, and the fertilizer effect period is about 90 days. Compound fertilizer has a long effect, should be used as base fertilizer, due to the slow decomposition of compound fertilizer, for crops that use compound fertilizer as base fertilizer when sowing, it should be supplemented with available nitrogen fertilizer in time according to the fertilizer demand law of different crops in top dressing to meet the nutritional needs of crops, and the concentration of compound fertilizer varies greatly, and attention should be paid to choosing the appropriate concentration.

2. When using compound fertilizer, it should be noted that compound fertilizer containing potassium chloride or chloride ions cannot be used on chlorine-resistant crops or saline-alkali land; Compound fertilizers containing nitrate cannot be used on leafy vegetables and paddy fields; Compound fertilizers containing potassium sulfate should not be applied in paddy fields and acidic soils, otherwise it will not only affect the fertilizer efficiency, but also may poison crops. Compound fertilizers containing ammonium ions should not be applied on saline-alkali land; Different brands and different concentrations of compound fertilizers use different raw materials, and the production should be selected according to the type of soil and crop types. In addition, when choosing compound fertilizers, you should also pay attention to the nutrients contained in it, as well as the packaging and manufacturer, and beware of being deceived.

Second, the advantages of compound fertilizer

1. The total amount of nutrients of compound fertilizer is generally relatively high, and a single application of compound fertilizer can at least be used at the same time to produce more than two main nutrients, and there are many types of nutrients.

2. The structure is uniform, the nutrient distribution is relatively uniform, compared with the crystalline or powdery unit fertilizer after causing particles, the nutrient release is uniform, the structure is compact, and the fertilizer effect is stable and long, such as ammonium phosphate does not contain any useless side components, and its anions and cations are the main nutrients absorbed by crops. Due to the small number of side components, it has little adverse effect on the soil.

3. Compound fertilizer is generally made into particles, which is not easy to agglomerate, and has low hygroscopicity, which is especially convenient for mechanized fertilization.

4. Because the content of active ingredients in compound fertilizer is generally higher than that of unit fertilizer, and there are fewer by-components, it can save storage, packaging and transportation costs. For example, for every 1 ton of ammonium phosphate stored and transported, it is equivalent to a total of 4 tons of ammonium persulfate and calcium phosphate are stored and transported.

Summary. The method of sprinkling: combined with deep tillage or sowing, the organic fertilizer is evenly applied in the area where the root system is concentrated and distributed and the soil layer that is often kept moist, so that the organic fertilizer is fully mixed with the soil, this method is suitable for new plots or heavy land plots after fruit and vegetable harvest, which can effectively improve the content of soil organic matter and fertilize the soil.

2. The method of fertilization in strip furrows: strip sowing crops or fruit trees such as grapes and kiwifruit, fertilizing and sowing after ditching or ditching at a distance of 5 cm from fruit trees to apply organic fertilizer.

Can I still sprinkle organic fertilizer on the land after ridge raising or sowing? If so, in what way?

Hello dear The method of sprinkling: combined with deep ploughing or sowing, the organic fertilizer is evenly applied in the area where the root system is concentrated and often kept moist, so that the organic fertilizer is fully mixed with the soil, this method is suitable for newly opened plots or heavy land plots after fruit and vegetable harvest, which can effectively improve the content of soil organic matter and fertilize the soil. 2. The method of fertilization in strip ditches:

Strip-sown crops or fruit trees such as grapes and kiwifruit, fertilize and sow seeds after ditching or apply organic fertilizer at a distance of 5 cm from the fruit trees.

Do not sprinkle organic fertilizer after sowing.

Ok thanks.

You're welcome.

It is important to shovel soil in plantations, improve the permeability of the soil layer, mature the soil layer, improve soil organic matter, and improve soil biological soil colloidsImproving the living conditions of microorganisms is beneficial to the development trend of fruit tree rhizomes. This kind of fruit grower will master some of them. So how to shovel the soil to save effort, save effort, and the effect is very good?

The first thing to understand is that shoveling soil in a plantation is different from subsoiling and shallow loosening of agricultural machinery. It is best to combine feeding fruit trees to carry out plantation shoveling, if the soil is not appropriate, it is time-consuming and not very effective.

We know that when the fruit tree is fed to the tree, it should be carried out according to the size of the trunk, so when feeding the tree, it is necessary to integrate the size of the trunk to carry out annular fertilization, and the size of the shade of the tree should be possible when excavating, without hurting the roots. When the fruit tree in the mountainous area is excavated, there are often stones in the Qingqing, the stones are completely clean and tidy when shoveling the soil, if the shovel soil is deep enough, the soil should be filled, and the soil should be cooked on the ground, and the soil that has just been dug out is called raw soil, there is no structure, no nutrients. Plantation soil shoveling is generally carried out in the autumn after the fruit has been picked.

At the moment, it is not easy to damage the rhizome, and even if there is a condition of root stalking, it will not disturb the peach tree.

After the fruit tree roots are planted, a large number of new roots will sprout, which is beneficial for upgrading the rhizomes. The actual effect of base fertilizer in autumn is better, generally in autumn when using base fertilizer, you can shovel soil excavation application. Apricot trees, shovel soil depth is about 30-50cm preferably.

This is the area where the rhizomes are distributed, and even the roots are not very harmful to the fruit trees. After the fruit trees sprout in spring, it is strictly forbidden to shovel soil, and only in autumn during the whole growing season. I think that fruit farmers are habitually harmed, and one-sidedly feel that the plantation shoveling soil is beneficial to the ripening soil layer and improve the air permeability of the fruit, but it leads to the death of many digested and absorbed roots in the plantation, and it cannot be repaired in the short term<>

However, the leaves quickly wither and enter the resting stage, and the rhizome repair time is short, or almost empty. Large-scale subsoiling of plantations is carried out before and after winterIt is the living habits and helplessness of fruit farmers in many places. In the early days, I was busy and had no time, and I was picking fruits, grading and classifying, entering the warehouse or **, and evaluating two pairs of hands, but it was already winter.

Mix organic fertilizer with soil and sprinkle it around the roots, which is more conducive to the rapid digestion and absorption of nutrients by the roots.

Ploughing the soil will make the oxygen content of the soil higher. Therefore, it is more conducive to the absorption of fertilizers and makes crops grow better.

After turning the soil, it can increase the width of the soil's socks, which is stuffy and breathable, and can better absorb water. It can also remove harmful substances from the soil. This allows you to bend and increase your yield.

Fertilization followed by sowing is done in order to provide the crops with sufficient nutrients to promote their growth and development. Fertilizing the soil before sowing can make the soil more fertile, improve its quality, and provide enough nutrients for the growing crops in advance, so that the growth potential can be better realized in the early stages of growth, and the growth can be carried out quickly.

In addition, the practice of fertilizing first and then sowing can also prevent the crops from growing slowly, wilting and even dying due to lack of nutrients. For example, when sowing cold-tolerant crops, applying the right amount of potassium and phosphate fertilizer in advance can enhance the cold resistance of the crop, improve its frost resistance and cold damage defense ability.

In the planting crop Nianbatan, because the nutrients in the soil are continuously absorbed in the process of crop growth, if the nutrients can not be replenished in time, although the normal survival of the crop can be guaranteed, it is bound to affect the growth. Therefore, in order to ensure that crops improve yield and quality, crops need to be fertilized.

In the process of fertilizing planting crops, reasonable fertilization should be carried out according to the growth and needs of crops. This not only ensures the normal growth of crops, but also reduces input costs and fertilizer waste. Achieve the fertilization effect of "less fertilizer, high energy".

1. Fertilize according to the growth situation.

To plant crops, in addition to knowing fertilization, it is also necessary to carry out reasonable topdressing according to the growth of crops. During the growth of crops, the lack of nutrients will be very intuitive on the plant, such as the lack of nitrogen in the crop, the plant will be short and thin; Potassium deficiency, old leaves and new leaves are yellow, scorched and burned; Calcium deficiency leads to fruit cracking; Zinc deficiency, grape size grains; Boron deficiency, flowers but not fruits, buds but not flowers, etc.

Therefore, in addition to the regular application of nitrogen, phosphorus and potassium macroelements, foliar fertilizer, medium elements, and boron fertilizer should also be sprayed on the foliar surface for nutritional supplementation, so as to avoid nutrient deficiency and affect the growth of crops.

2. Fertilize according to demand.

When planting crops, fertilizers with different nutrients will be selected due to the different nutrient requirements of crops in different growth periods, such as nitrogen fertilizer at the seedling stage; Phosphate fertilizer was the main flower bud differentiation stage. In the fruit expansion period, potash fertilizer is the main part of Hengzhou. There are also some "potassium-loving crops", such as sugar beet and sweet potato, which need to be appropriately applied with more potassium fertilizer according to the potassium content of the soil; For leguminous crops, apply less nitrogen fertilizer and more phosphorus and potassium fertilizer. Understanding the needs of crops is very beneficial to crop growth.

According to the different needs of nutrients during the growth period of crops, there are four kinds of scientific nutrient distribution ratios: balanced, high nitrogen, high potassium and high phosphorus, which are suitable for various crops and used in various periods. Of course, in addition to nitrogen, phosphorus and potassium macroelements, medium and trace elements are also added, which can effectively prevent soil nutrient deficiency and is a better choice for planting crops and fertilizing.