CATDOLL : CATDOLL: What should we do if the soil becomes compacted?

Reasons why soil becomes compacted

When watering, the water is too hard, there are too many calcium and magnesium ions in it, and they have no way to dissolve in the water. When they are watered in the flowerpots, they gather on the soil, and the soil becomes very hard.

When applying fertilizer to flowers, due to improper fertilization, the potting soil itself contains more calcium. However, if ammonium sulfate is used to fertilize the flowers, the soil will become compacted.

In normal times, people use unfermented milk, egg white, etc. to water the flowers. These cannot be absorbed by the flowers and plants, and the soil will become compacted.

How to deal with it?

You can loosen the soil a little bit first, and then don't water it.

After a while, sprinkle some decomposed vegetable cake powder or bean cake powder evenly on the potting soil. Not too much, just enough to see the thickness of the soil. Don't put too much, otherwise it may burn the roots of the flowers.

When watering the flower pots with a watering can, make sure the traditional fertilizer and soil are closely mixed together. In about 20 days, the soil will gradually soften. Basically, you only need to do this once every two months.

The dry fertilizer will ferment in the pot, which will make the originally hardened soil become very solid. Moreover, with the process of watering, the fertilizer will gradually enter the soil in the flowerpot, which can replenish a lot of nutrients, so there is basically no need to change the soil.

How to prevent soil compaction:

If you must use tap water to water the flowers, it is best to let the tap water dry for a day or two.

In normal times, pay attention to loosening the soil in the flower pots in time, which can reduce the compaction of the soil in the pots.

When preparing potting soil, you should prepare it according to the different preferences of the flowers. You can add river sand to adjust the looseness and air permeability of the soil.

1. Main factors of soil compaction: There are about 7 factors that cause soil compaction: too sticky soil in farmland, insufficient organic fertilizer and reduced amount of straw returned to the field, too many plastic products, long-term single application of chemical fertilizers, farming measures such as suppression and plowing, high content of groundwater and industrial wastewater and toxic substances in some places, and soil compaction after heavy rain and soil erosion. 2. Key measures to solve soil compaction:

1. Soil that is too sticky: Use the method of adding sand and adding organic fertilizer to completely change the physical and chemical properties of the soil.

2. Increase the application of organic fertilizer and adopt the technology of returning straw to the field: increase the content of soil organic matter, enhance the activity of soil microorganisms, and increase the organic matter to more than 3%. First, expand the planting of green manure, second, increase the application of farmyard manure, with an application rate of more than 1,500 kilograms per mu, and third, promote new organic fertilizers with a standard organic matter content of ≥30% and nitrogen, phosphorus and potassium content of ≥4%.

3. Completely remove plastic products: The comprehensive promotion and application of mulching and nutrient bag seedling cultivation technology has made great contributions to increasing crop yields. However, due to the lack of thorough removal after cultivation, a large amount of plastic colloid remains in the soil, which not only destroys the soil structure but also forms toxic substances.

4. Promote soil testing and formula fertilization technology: Based on soil test results, use a combination of organic and inorganic fertilizers, increase the application of organic fertilizers, apply chemical fertilizers reasonably, and supplement with trace element fertilizers. This will not only prevent the soil from becoming compacted, but will also increase the organic matter content, improve soil structure, and increase water permeability while increasing fertility, further improving soil quality and avoiding the occurrence of compaction.

5. Moderate deep plowing: Scientific and moderate deep plowing should be about 30 centimeters, which is beneficial to protect the soil tillage layer structure from being destroyed and the growth of crop roots.

6. Promote slope cultivation technology: adopt soil-collecting ridge cultivation technology to reduce soil erosion during heavy rains.

7. Promote the "Angerui" soil conditioner that does not require deep tillage: The Angerui soil conditioner that does not require deep tillage is developed and produced by Chengdu Xinchaoyang Biochemical Co., Ltd. and has been approved as a key new product by the Ministry of Science and Technology, the Ministry of Commerce, the General Administration of Quality Supervision, Inspection and Quarantine, and the State Environmental Protection Administration. No deep tillage can break up soil compaction, loosen the soil, deepen the tillage layer, conserve soil and fertilize the soil, improve fertilizer efficiency, save fertilizers, clean the soil, and reduce the spread of soil diseases. There are two conditions for soil salinization to form saline-alkali soil.

One is the dry climate and high groundwater level (above the critical water level). Groundwater contains a certain amount of salt. If the water surface is close to the ground and the area is relatively dry, the water that rises to the surface due to capillary action evaporates and leaves behind salt. Over time, the salt content of the soil gradually increases, forming saline-alkali soil. The second is low-lying terrain with no drainage outlet.

When the water in the depression evaporates, salt is left behind, forming saline-alkali land.

1. Soil compaction and decreased soil fertility.

2. It is not conducive to the absorption of nutrients by crops and hinders crop growth.

Prevention and control: Measures for the control of saline-alkali land include water improvement measures (irrigation, drainage, silt release, rice planting, anti-seepage, etc.); agricultural improvement measures (land leveling, improved farming, application of foreign soil, fertilization, sowing, crop rotation, intercropping, etc.); biological improvement measures (planting salt-tolerant plants and forage, green manure, afforestation, etc.); and chemical improvement measures (application of improvement substances such as gypsum, phosphogypsum, calcium sulfite, etc.). Since each measure has a certain scope of application and conditions, it must be treated comprehensively according to local conditions.

Do you have soil problems in your fields? Are you troubled by soil compaction? Let's talk about what to do if the soil is severely compacted.

Simply put, soil compaction means that the soil surface becomes hard and cracks appear, making it difficult for crops to take root and survive, and to absorb nutrients from the soil. What exactly causes soil compaction?

1. Due to the soil itself, some soils are clay, which has poor air permeability and is easy to become compacted.

2. Excessive use of chemical fertilizers. In the past few years, many farmers have used a large amount of chemical fertilizers in order to pursue crop yields. Many nutrients in chemical fertilizers are not absorbed and utilized by other crops, but accumulate and precipitate in the soil, causing soil compaction.

3. Organic fertilizer is used sparingly. Most farmers have the habit of applying organic fertilizer, but the amount used is relatively small, which makes it difficult to supplement the organic matter of crops during their growth process, leading to a lack of organic matter in the soil.

4. Some farmers like to water heavily when watering, which can easily destroy the soil structure and cause soil compaction.

5. Repeated cropping year after year causes continuous accumulation of toxic substances. Some crops have relatively high economic value, and many farmers choose to plant the same crop year after year, which can easily lead to many problems. The nutrients required by the same crop are basically fixed, which can easily lead to a lack of certain nutrients in the soil. Many nutrients are absorbed in small amounts or are not absorbed and utilized, and will accumulate in the soil. At the same time, the crops themselves will produce some toxic substances. After years of planting, toxic substances continue to accumulate, which in turn changes the soil structure and causes compaction.

Now that I understand the causes of soil compaction, what can I do to improve the situation?

First of all, we must apply fertilizers reasonably, reduce the use of chemical fertilizers, increase the application of organic fertilizers, and supplement beneficial microorganisms. This will not only replenish organic matter, but also provide activity for the soil, improve the utilization rate of chemical fertilizers, and ensure product quality and yield while reducing the use of chemical fertilizers.

Secondly, irrigation should be reasonable. A good watering method is not only beneficial to the growth and development of crops, but also can reduce labor and reduce costs.

Third, proper crop rotation and reduction of repeated cropping can reduce the accumulation of toxic substances in the soil, lower the probability of repeated cropping diseases, and reduce the use of pesticides. While protecting the environment, it can also reduce agricultural residues and improve soil compaction.

Finally, appropriate deep plowing and good tillage methods can break up the soil structure, break up and reorganize the compacted soil, loosen the soil, and promote root respiration while improving the soil.

This is all we have to say about soil compaction for now. If you have any small agricultural issues in the future, please communicate with me in time.

Soil compaction is probably the main reason for the decrease in soil porosity caused by excessive use of chemical fertilizers. The soil aggregate structure is formed by negatively charged soil clay particles and organic matter connected by positively charged multivalent cations. Multivalent cations connect soil particles into large particles in the form of bond bridges to form soil aggregate structure.

Application of chemical phosphate fertilizer:

The cations in the soil are mainly divalent calcium and magnesium ions. When excessive phosphorus fertilizer is applied to the soil, the phosphate ions in the phosphorus fertilizer combine with calcium, magnesium and other cations in the soil to form insoluble phosphates, which not only wastes phosphorus fertilizer, but also destroys the soil aggregate structure, causing the soil to become compacted.

Chemical potassium fertilizer application:

When potassium fertilizer is applied excessively to the soil, the potassium ions in the potassium fertilizer have a particularly strong substitution ability and can replace the multivalent cations that form the soil aggregate structure. However, the monovalent potassium ions do not have a bond bridge effect, and the bond bridges of the soil aggregate structure are destroyed, thus destroying the aggregate structure and causing the soil to become compacted.

On November 24 and 25, 2014, CCTV-7 Science and Technology Garden column introduced the magical attapulgite, which is mainly used in agriculture. You can take a look.

I recommend you to try Gansu Jincheng Attapulgite (search on Baidu), its main functions are:

1. Supplement trace elements in the soil (natural high silicon contains 19 trace elements such as iodine, selenium, zinc, etc.)

2. Prevent soil compaction (due to its multi-porous needle-like structure and the action of anions and cations, it can improve soil looseness)

3. It can slow-release fertilizers (the specific surface area of ​​1 gram of attapulgite is as large as the area of ​​a house of 120-200 square meters. It has the ability to absorb excess fertilizers in the soil to the molecular surface and release fertilizers again through its own ion exchange)

Available on Taobao

Use a ground-drilling loosening agent to loosen the soil. The loose soil is like a sponge with pores. You can find it by searching on Taobao. You can give it a try.