2, manure is not as good as manure: manure is not as good as manure. Describing things is extremely worthless.
3. Huangzhong earthen pot: earthen pot: a big pot made of clay, used as a musical instrument, with the lowest tone. Metaphor is elegant and excellent or vulgar and inferior; Talented and mediocre.
4. Spend money like water: sprinkle. Spend money like water. Describe extreme luxury.
5, painting and painting: Li: broom; One: water is sprinkled on the ground; Tu: Earth. Sweep the ground with a broom, sprinkle some water and scrape the soil with a knife. Metaphor is extremely easy to do.
6. Divide the land into different branches: refer to the title of vassal. When the ancient emperor enfeoffed a vassal, he wrapped the soil on the social altar with imperata and gave it to the sealed person, symbolizing land and power, which was called "dividing the land into different branches".
7. Distribute land and grass: When the ancient princes enfeoffed, they granted the land wrapped in imperata to the sealed person, symbolizing the grant of land and power.
8. Divide the soil and grass: When the ancient princes were enfeoffed, the soil wrapped in imperata was awarded to the blocked person, symbolizing the grant of land and power.
9. Mautz terrace: Mautz: a roof covered with thatch and reeds; Step: Step. A thatched roof and mud steps. Describe a simple house or a frugal life.
10, thatched earth steps: thatched roof, mud steps. Describe a simple house or a frugal life.
1, pronounced [t ǔ r ǔ ng]
2. Composition of soil: The substances in soil can be summarized into three parts: solid part, liquid part and gas part.
Soil minerals are mineral particles (sand particles, soil particles and colloidal particles) of different sizes formed by weathering of rocks. There are many kinds of soil minerals with complex chemical composition, which directly affect the physical and chemical properties of soil and are one of the important sources of crop nutrients.
Solid soil particles composed of minerals and humus are the main part of soil, accounting for about 50% of the soil volume, and the pores between solid particles are occupied by gas and water.
Most soil gases are oxygen, nitrogen and so on. It comes from the atmosphere, and a small part is carbon dioxide and water vapor produced by life activities in the soil. The water in the soil mainly enters the soil from the surface, including many dissolved substances.
There are also various animals, plants and microorganisms in the soil.
2. Soil-forming factors: The basic viewpoints of the theory of soil-forming factors can be summarized as follows:
① Soil is an independent natural body, which is formed under the complex interaction of various soil-forming factors.
② For the formation of soil, various soil-forming factors are equally important and irreplaceable. Among them, biology plays a leading role.
Function. Soil is formed by living organisms acting on soil-forming parent materials in a certain climate and terrain for a certain period of time.