Soil conditioner

Abstract

The invention discloses a soil conditioner. The soil conditioner consists of the following components in percentage by mass: 30%-80% of a soil loosening agent and 20%-70% of a soil air capturing agent, and the sum of the mass percentages of the components is 100%. The invention also provides a preparation method of the soil air capturing agent. The soil conditioner disclosed by the invention can be used for effectively loosening soil and eliminating soil hardening.

Description

technical field [0001] The invention belongs to the technical field of soil loosening, and in particular relates to a soil conditioner, and also relates to a preparation method of a soil air capture agent in the soil conditioner. Background technique [0002] Soil compaction is one of the main problems affecting agricultural production in our country. Soil compaction will reduce the water absorption, oxygen absorption and nutrient adsorption capacity of the soil, and will also affect the permeability of the soil. The decrease of soil permeability will cause poor development of crop root system and affect the growth and development of crops. It is generally believed that the main causes of soil compaction are as follows: [0003] (1) The texture of the farmland soil itself is heavy and sticky, the content of clay particles in the clay is relatively high, the cultivated layer is less than 20 cm shallow on average, the capillary pores in the soil are less, and the ventilation,...

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Problems solved by technology

[0003] (1) The texture of the farmland soil itself is heavy and sticky, the content of clay particles in the clay is relatively high, the cultivated layer is less than 20 cm shallow on average, the capillary pores in the soil are less, and the ventilation, water permeability, and temperature increase are poor. to damage, resulting in crusting of the soil surface;

[0004] (2) Less input of organic materials: no organic fertilizer or straw returning to the field will cause insufficient organic matter in the soil, low soil organic matter content, and poor physical and chemical properties. This will affect the activity of microorganisms, thereby affecting the formation of soil aggregate structure, resulting in The acidity and alkalinity of the soil is too large or too small, resulting in soil compaction;

[0005] (3) Plastic waste pollution: Mulch film and plastic bags, etc. have not been cleaned up, and cannot be completely decomposed in the soil, forming harmful lumps. The waste plastics that enter the landfill with domestic waste in my country every year account for 10% of landfill waste. 3% to 5% of the weight, most of which are plastic bag garbage, which are not easy to degrade when applied to the soil, causing hardening;

[0006] (4) Long-term single partial application of chemical fertilizers, serious shortage of farm manure, heavy nitrogen and light phosphorus and potassium fertilizers, soil organic matter decline, humus cannot be replenished in time, causing soil compaction and cracks, and long-term application of ammonium sulfate is also likely to cause soil compaction;

[0007] (5) Agricultural measures such as repression and plowing lead to the destruction of the upper soil structure: due to the influence of mechanical tillage, the soil aggregate structure is destroyed, and only part of the fertilizer applied to the soil every year is absorbed and utilized by the crops of the current season, and the rest is fixed by the soil. A large amount of salt deposits are formed, causing soil compaction. Improper cultivation timing, such as plowing and suppression when the soil is too wet, can easily cause compaction;

[0010] The common soil compaction modifiers currently on the market are all developed based on the above knowledge, but they do not address another important cause of soil compaction: the loss of non-polar liquid molecules in the soil leads to mutual coagulation and compaction of soil aggregates, resulting in Existing soil compaction improvers generally have disadvantages such as complex components, poor improvement effect, high cost, and slow effect

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