Science and Technology Noun | Soil Quality

Soil quality

sOIL QULITY

Definition: Soil internal attributes related to soil utilization and soil function.

Discipline: Soil Science

Related noun: Soil degradation of soil fertility

Picture source: Visual China

【Extended Reading】

The quality of soil is the comprehensive measure of soil fertility, environmental quality, and the health quality of animals and plants. It is a concentrated manifestation of soil to maintain productivity, environmental purification ability, and ensure the health of animal and plant health. It is also the forefront and research core of modern soil science.

Soil quality is the result of the degenerative process and the balance process of soil. Evaluating the multiple functions of the soil must consider the soil quality. The quality of the soil cannot be directly measured. The minimum data set that can determine the soil attributes to evaluate the basic function of soil execution. Evaluation indicators of soil quality include physical indicators (soil structure, soil cultivation, soil water holding capacity, penetration rate, soil reunion effect, etc.), chemical indicators (organic matter, pH value, speed nutrients, etc.), biological indicators (soil microorganisms Biomass carbon and nitrogen, soil breathing, soil enzyme activity, soil microorganisms, etc.).

The quality of soil is the ability of soil support and maintenance of crops. Good soil quality is not only highly productive, but also is of great significance to the improvement of the regional soil and water ecological environment. The main ways to improve soil quality are:

1. Reasonable farming and improve the soil structure. Reasonable farming measures can solve the problem of degradation of soil farming structure, improve the structure and function of cultivated layers, promote the growth of crop root systems, increase soil pores, reduce nutrient volatilization and loss, realize the expansion of the library to increase the capacity, and maintain the quality of the soil.

2. Added organic substances and improve the nature of soil physics. The addition of any organic substances helps improve the quality of the soil. The addition of organic substances is conducive to the formation of soil clustering, improving soil water preservation and fertilizer protection; organic substances have a strong buffering, which can prevent soil acidification and soil plates caused by long -term fertilizers, improve the soil's own resistance itself Sexual environment with good soil.

3. Scientific fertilization and maintain nutrient balance. Scientific fertilization is an effective measure to improve the quality of the soil. It can regulate and solve the contradiction between crop fertilizer and soil fertilizer according to the law of fertilizer, soil fertilizer characteristics and fertilizer effects. The use of soil measurement formula fertilization, soil is missing, and can effectively avoid blind fertilization, promote the balance of soil nutrients, and curb the barren land of cultivated land.

4. Do a good job of soil and water conservation and strengthen the awareness of soil and water conservation. Soil erosion makes the soil cultivation thinner, the quality of the soil decreases, causing soil fertility to decrease or even lose. Aiming at the soil with different degrees of erosion, we will take control measures adapted to local conditions to prevent and control both and both symptoms. In addition, strengthening publicity and education and improving national quality is a key measure to prevent soil loss and improve my country's ecological environment.

(Extended reading author: Zhang Xiuzhi, an associate researcher at the Institute of Agricultural Resources and Environment, Institute of Agricultural Sciences of Jilin Provincial Academy of Agricultural)

Source: National Scientific and Technological Noun Review Committee

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