从事耕作研究的人们经常要求农学家明确地规定种子和根系环境所需的理想的土壤物理状态.这种物理状态包括不同土层的紧实度和众所周知的粗细颗粒的相对含量,既能保证种子发芽出土又能保证根系高效地利用营养物质.为了确定使用最适宜的耕作技术以得到理想的物理状态,人们应当了解植 Farmers working on farming often ask agronomists to clearly define the ideal physical state of the soil needed for the seed and root environment, which includes the compaction of different soils and the relative abundance of well-known coarse and fine particles, ensuring that seeds Germination unearthed ensures that the root system uses nutrients efficiently and in order to determine the optimal physical conditions for the cultivation of the crop, one should understand that planting