We look at soilchemistry—for example, how much nitrogen or magnesium there is in the soil in one spot—and we compare it with the chemistry of the soil a short distance away.
我们会观察土壤的化学性质——比如某个地方的土壤里有多少氮或者镁——然后与附近土壤的化学性质作比较。
2
Coursework includes plant biology, entomology, soilchemistry, and plant propagation.
课程包括植物生物学,昆虫学,土壤化学和植物繁殖。
3
Plants may possibly influence soilchemistry by the possession of chelating mechanisms.