Soil fertility is soil productivity, which refers to the ability of soil to produce plant products.
举一反三
- Soil age refers to the length of time for soil development. Soil age is usually divided into absolute age and relative age.
- When the word “root” means “part of plant that keeps it firmly in the soil and absorbs water and food from the soil”, the meaning is ________ meaning.
- Plant grows in the soil and is an autotrophic organism with cell walls.
- Which of the following compressions in the soil under loading cannot be ignored（） A: soil particles B: interparticle pore C: sealing gas D: water in the soil
- Soil radiation is the only source of soil heat.