养分

• Temperature also affects the rate of decomposition and thus the nutrient flux rate .
  温度还会影响分解的速度，从而影响养分流的速度。
• A rock with a limited store of nutrients will tend to limit plant productivity .
  养分储藏量很少的岩石，必定会导致植物生长量的减低。
• Some of the mobilized elements may be reprecipitated at the base of the soil profile .
  某些移出的养分可能在土壤剖面底层重新沉淀下来。
• Soybeans have rarely been used as an experimental plant in nutrient uptake studies .
  在研究养分吸收问题时，很少用大豆作供试验用作物。
• The artificial improvement of drainage could soon lead to a marked loss in nutrients .
  采用人工排水措施可以迅速导致养分含量显著降低。
• The element of feedback in rhizosphere process systems is probably considerable .
  在根际作用体系中，反馈的养分元素，也许是相当重要的。
• The aggregates, composed of the primary particles, retain sufficient water and nutrients .
  由原颗粒组成的团聚体要能保持充分的水分和养分。
• Nutrient reserves depend much on the nature of the soil and how it has been used .
  土壤中养分的含量主要取决于土壤的性质及养分利用的方式。
• The development of the soybean seedling is dependent on the food reserves stored in the cotyledons .
  大豆幼苗的发育依靠子叶中所贮存的养分。
• This represents a substantial measure of nutrient conservation in soil and vegetation systems .
  这一点正是在土壤植被系统中保持养分的实质措施。