How to improve poor soils? How to improve the soil

Different methods of improving poor soil are different for different properties.

1) Improvement of barren, thin and heavy soils.

This kind of soil is generally more viscous, poor permeability, strong water and fertilizer retention ability, easy to accumulate water, high potential nutrient content, slow decomposition of organic matter, easy to accumulate, long fertilizer, small temperature difference between day and night, not easy to cultivate, short tillage period, poor tillage quality, poor soil structure.

Improvement method: First, reapply organic fertilizer. The applied organic fertilizer is prone to the formation of humus.

In this way, the formation of aggregate structure is promoted, and the soil structure and tillage are improved. Generally, 15 20 tons of organic fertilizer per mu are applied every year, and a good vegetable field can be made in 3 or 4 years. The second is to reduce viscosity by sand compaction.

Under the condition of conditions, 20 30 tons of river sand soil are applied per mu for two consecutive years, and organic fertilizer can be applied to improve the clay soil.

2) Improvement of low-lying saline-alkali soil.

Low-lying saline-alkali soil is generally prone to water accumulation, high salt content, and its pH is above 8, which affects the normal growth of crops.

Improvement method: First, increase the application of organic fertilizer to promote the improvement of organic matter content. The most basic way to improve saline-alkali soils is to cut the capillary connection between the topsoil and the subsoil.

The humus converted into organic fertilizer can promote the formation of aggregate structure in the topsoil, which plays the role of salt pressing. Therefore, deep tillage combined with a large amount of organic fertilizer is an effective measure. The second is agricultural biological measures, including land leveling, soil fertilization, and planting alkali-tolerant crops and green manure.

The third is chemical improvement measures, mainly the use of soil amendments. Fourth, large water washing salt pressure alkali, digging and draining alkali canal system. Fifth, rice planting is changed to alkali, and water and drought are rotated.

3) Improvement of sandy soils.

The sandy heavy soil is generally characterized by excessive looseness, water leakage and fertilizer leakage, lack of organic matter, large evaporation, low thermal insulation performance, short fertility, and easy defertilization in the later stage.

Improvement method: First, a large number of organic fertilizers are applied. This is the most effective way to improve sandy soils, i.e. to put all kinds of manure and compost.

Turn into the soil during spring or autumn ploughing. Due to the buffering effect of organic matter, soluble chemical fertilizers can be applied more appropriately.

In particular, ammonium nitrogen and phosphorus fertilizers can be preserved in the soil and not lost. The second is to apply a large number of river mud and pond mud, which is also a good way to improve sandy soil. For example, 4 10 tons of river mud per mu are applied every year, combined with tillage, and organic fertilizer is added to make the fertilizer and soil blend.

For example, in the process of new solar greenhouses, since most of the topsoil rich in organic matter is removed, the primary problem of new greenhouses is to increase the organic matter content of the soil. Soil organic matter has the functions of providing nutrients needed by crops and improving the effectiveness of nutrients, improving the physical and chemical properties of soil, and enhancing the fertilizer retention and buffering properties of soil. In a few years, soil fertility will inevitably be greatly improved, and the situation of excessive loosening and water leakage will be improved.

The third is to plant legumes and vegetables in the spare season between two crops, intercropping and crop rotation to increase humus and nitrogen fertilizer in the soil. Fourth, the soil with a thin sand layer can be pressed in late autumn, so that the clay at the bottom can be mixed with the sand to reduce its sandiness.

Hungry Soil - How to Quickly Fix Barren Soil 1

Replenish soil organic matter Soil organic matter content is an important indicator to measure soil fertility, which is rich in soil organic matter and can provide nutrients necessary for crop growth and development in a balanced and long-term manner.

Farm manure, straw, fungus fertilizer or fungal agent can all supplement soil organic matter. Farmhouse fertilizer At present, homemade fermented organic fertilizer is more popular with farmers. Chicken manure is the first choice for many farmers, because the organic matter content in chicken manure is very high, but the chicken manure is not fully decomposed and is used, which will also cause great harm.

"Secondary fermentation" occurs when manure that has not been sufficiently fermented or decomposed is applied directly to crops.

When the fermentation part is close to the roots or the crop is small, the heat, methane, ammonia and other harmful gases generated by fermentation will affect the growth of crops, resulting in "burning roots and seedlings", and in severe cases, it will cause plant death. Manure contains E. coli, nematodes and other germs and insect pests, and direct use will cause pests and diseases to infect crops and affect crop health. Therefore, when making homemade organic fertilizer, it must be fully fermented and decomposed before use.

Straw The main component of straw is carbon, and straw can be used to supplement organic matter for greenhouses. Especially in 7-10 year greenhouses, the effect of straw is very good. Due to the use of a large number of elements year after year, the nitrogen content in the greenhouse soil exceeds the standard, and the use of straw can adjust the soil carbon and nitrogen ratio.

When using straw, it is important to do a good job of pest control, because many pathogenic bacteria survive on crop residues. Bacterial fertilizer or microbial agent Manure decomposes slowly, we can use bacterial fertilizer or microbial agent to promote the decomposition of organic matter through microorganisms and provide nutrients for crops. In addition, beneficial bacteria can also play a role in "inhibiting bacteria with bacteria" and inhibiting the harm of harmful bacteria in the soil.

The use of microbial fertilizer or microbial agent to adjust the soil is a continuous and slow process, do not expect to use it once to improve the soil, only if you insist on using it, it will give you unexpected results. Reducing the use of chemical fertilizers Successive years of planting and excessive use of chemical fertilizers have led to soil compaction, soil acidification, and soil problems. Due to the relatively high nutrient content and concentration of chemical fertilizers, the principle of small amounts and multiple times should be followed when applied.

It is recommended to apply water-soluble fertilizer, as a new type of environmentally friendly fertilizer, it is easy to use, can be sprayed, flushed and combined with sprinkler and drip irrigation. It has obvious advantages in improving fertilizer utilization, saving agricultural water, reducing ecological and environmental pollution, improving crop quality and reducing labor. Soil fertility is insufficient, which can be supplemented by the above methods to improve the soil, improve soil organic matter, and plant crops to obtain high and stable yields.

In order to improve this poor soil, what we need to do is to apply more fertilizer to the soil in normal times, and then we also need to spray more pesticides or chemicals to change one of the properties of the soil. In this way, the overall limits of the soil are changed.

You can plant some crops in the field, turn them down in the fall, and sprinkle a layer of farm manure on the ground, which can improve the poor soil.

Other components can be applied according to the local soil conditions, so that the soil can also be regulated and improved.

You can add some fertilizer to the land, and add some water, and you can also take turns planting when planting, so that you can improve the condition of the land.

First of all, we can increase the content of organic matter in the soil, adjust the pH of the soil, be sure to adjust the salt content of the soil, adjust the moisture of the soil, supplement some trace elements and so on.

There are three main methods of soil improvement.

The first is to add an appropriate amount of granular soil to the soil, but the proportion can not be too large when applied, and the granular soil can be mixed with water and then stirred evenly and then added to the soil;

The second method is for alkaline soils, which can be watered with alum fertilizer water or ferrous sulfate solution to make the soil acidic;

The third is to supplement the soil with organic fertilizer, mix the well-decomposed fertilizer with the soil, and then sprinkle it directly on the surface of the soil, and then turn it deep into the soil.

At this time, you can add more base fertilizer to the soil, and then you can also add phosphorus fertilizer, nitrogen fertilizer, you can also choose to add more water, and you should also loosen the soil in time, and you can choose to rotate crops.

Summary. Hello, the soil is very poor, you can replenish the soil organic matter soil organic matter content is an important indicator to measure soil fertility, the soil organic matter content is rich, can be balanced and long-term supply of nutrients necessary for the growth and development of crops. Farm manure, straw, fungus fertilizer or fungal agent can all supplement soil organic matter.

The soil is very poor, how to improve the poor soil?

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Hello, the soil is very poor, can replenish soil organic matter Soil organic matter content is an important indicator to measure soil fertility, soil organic matter content is rich, can provide a balanced and long-term supply of nutrients necessary for crop growth and growth. Farm fertilizers, straws, bacterial fertilizers or fungal agents can all supplement CITIC's soil organic matter.

Soil can be improved by using soil conditioners, intercropping green manure, using earthworms, scientifically applying chemical fertilizers, and increasing organic fertilizers.

1.Use a soil conditioner

Soil conditioners can improve soil structure, make soil loose, balance soil pH, etc., but when choosing, we should understand whether the soil is acidic or alkaline, and choose different soil conditioners for different properties of soil, and at the same time, we must strictly follow the instructions to determine the dosage, otherwise there will be other ***.

2.Intercropping green manure

Planting alfalfa, vetch, mung bean, grass and other crops between fruit trees can improve the physical and chemical properties of the soil, easy to cultivate, high fertilizer efficiency, and can also be used as feed, which is a low-cost high-quality fertilizer source.

3.Make use of earthworms

Earthworms can improve the fertility of the soil, and in daily cultivation, you can put some earthworms in the soil to make the soil loose, and at the same time play a role in water retention.

4.Scientific application of chemical fertilizers

The scientific application of chemical fertilizers is mainly soil testing and fertilization, that is, fertilization is decided according to the specific conditions of the soil. Apply what kind of fertilizer is lacking in the soil, and make up for the lack of how much, and avoid excessive use of chemical fertilizers for high yields.

5.Increase the use of organic fertilizer

Organic fertilizer has comprehensive nutrients and rich organic matter content, which can effectively solve soil problems such as soil salinization and compaction. According to research, the high yield of an orchard or farm is closely related to the high content of organic matter in the soil.

The most basic thing is to look at the color. The silt is black because it is rich in organic matter and its fertility is good; The soil color of the ridge is grayish-white, and no one will fertilize the ridge, so the soil fertility of the ridge is very poor. Therefore, the fertility of dark-colored soil is good, and the fertility of light-colored soil will be higher than that of soil bulk density; determination of soil moisture content; determination of soil organic matter; determination of soil humic acids; Determination of soil pH; Determination of soil fertility (determination of nitrogen, phosphate, potassium and trace elements);

<> determination of soil EC (electrical conductivity) values, etc. depressions are susceptible to waterlogging; Slope erosion, soil texture is too sandy or too clayey, less organic matter and mineral nutrients, shallow soil layer, and poor soil layer structure. Its basic characteristic is that the fertility factors such as fertilizer, gas, water and heat in the soil cannot meet the basic requirements of crops in the process of growth and development.

Soil testing and fertilizer distribution enterprises invite technicians to the field to conduct on-site soil testing and testing, and scientifically detect and test the content and nutrient structure ratio of 16 kinds of nutrients and organic matter such as nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and iron in the soil.

Generally speaking, one of the main criteria for judging the fertility of the soil is the soil method: one is to "take a look". Look at the color of the soil, and judge the soil fertility from the color.

If the soil color is darker, it is mostly black soil, meadow black soil, dark brown soil and other soil types with high fertility, and if the color is lighter, it is generally more barren soil types such as white clay soil.

To improve soil productivity, we must first understand the soil, know what is the fertile soil, and then know what are the shortcomings of the soil we cultivate, and how to improve the soil fertility and make it a fertile soil. From understanding the soil to understanding the missing factors, from conservation to improving soil fertility, the color color appears dark and dark, and these dark soil layers should reach less than 50 cm, and the soil is loose and easy to cultivate, which indicates that the soil is relatively fertile and the nutrients are more sufficient; On the contrary, the soil color is lighter, the tillage is harder and laborious, and the adhesion tool indicates that the soil fertility is poor.

1. Increase plant residues:

It includes litter, dead plant bodies and roots of various plants. This is the main organic matter of the soil in its natural state. For example, straw is returned to the field, and dead branches and leaves are turned deep into the ground and landfilled.

2. Increase animal and microbial residues

Including the remains of soil animals and non-soil animals, as well as the remains of various microorganismsThis part is relatively rare. But for primitive soils, microorganisms are the earliest forms of soil organic matter**.

3. Excretions and secretions of animals, plants and microorganisms applied to the soil

Although the amount of soil organic matter is small, it plays a very important role in the transformation of soil organic matter.

4. All kinds of organic fertilizers (green manure, compost, manure, etc.), industrial, agricultural and domestic wastewater, waste residue, etc., as well as various microbial products, organic pesticides, etc.

1. Increase the amount of organic fertilizer, such as the use of crop straw organic fertilizer, as well as high-quality commercial organic fertilizer, and can also apply high-content Bika compound live microbial fertilizer. 2. Reduce the amount of chemical fertilizer, improve farmers' understanding of the role of various fertilizers, and combine the amount of chemical fertilizer with reasonable formula fertilization in combination with crop yield and soil fertility, so as to control the amount of blind application of chemical fertilizer, but also reduce unreasonable inputs, thereby increasing economic benefits. 3. Further promote dry farming, implement sprinkler irrigation and drip irrigation, or advocate the use of more rainwater storage in summer to make full use of above-ground water.

Deep well water can also be used if conditions permit.