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nutrient adj.營養的,滋養的。n.營養物,營養品,養分,養料;...

nutriment

The mechanism of nutrient uptake by soybean roots is only part of a more general problem on the subject involving all plant species . 大豆根系對養分的吸收機制只是所有作物吸收養分的最一般問題的一部分。

Fluoride treatment included both excised leaves cultured in nutrient solutions and leaves from plants fumigated with hf . 氟化物處理既包括培養在營養溶液中的切離葉片和HF熏氣的植株上來的葉片。

The current nutrient status of crops can now be determined through the systematic sampling of plants as appropriate times . 作物當時的營養狀況,可在適當時期對植物的系統采樣進行營養分析。

There is a great contrast between nutrient cycles in natural vegetation and the nutrients involved in growing an arable crop . 天然生長的植物與人工栽培的作物在營養循環方面有很大的差異。

The vascular changes interfere with diffusion of nutrients from plasma into adjacent perivascular tissue and cells . 這些血管變化干擾了營養物質從血漿中向血管周圍鄰接的組織和細胞擴散。

The store of nutrients in the soil which is available to plants is an important constraint upon plant productivity . 土壤中植物有效養分的儲存對于植物生長量是一個重要的制約因素。

Leaves and twigs have high concentration of nutrients that, if left in the forest, revitalize the soil . 樹葉和細枝具有更多的營養成分,若將它們留在森林,可使土壤恢復元氣。

The atmospheric supply of nutrients is usually small relative to the supply of nutrients found in mineral soils . 來自大氣的養分供應量,一般少于礦質土壤本身的養分供應量。

If so, accuracy in formulating diets and calculating the nutrient needs of pigs is rendered meaningless . 假如這樣,飼糧配合和豬的營養需要計算的精確性就變得毫無意義了。

This overall deterioration in soil structure is usually accompanied by a reduced nutrient retention capacity . 這種土壤結構的全面惡化,通常伴隨著養份保持能力的降低。

An auxotroph requires, in addition to the principal carbon source, one or more organic nutrients . 缺陷營養生物除需要主要碳源外,還需要一種或幾種有機養料。

The abundance and availability of water and nutrients in a soil ecosystem determine its fertility . 土壤生態系統中水分和養分的豐度和有效性決定土壤的肥力。

As might be expected, tropical lakes may be exceedingly productive if nutrients are plentiful . 如所想象的那樣,熱帶湖泊如果營養物豐富,那么會特別高產。

When spot applications of nutrients are applied, only the small treated areas need be poisoned . 當進行小面積施肥時,只需在施過肥的小面積上放置毒藥。

He applied phosphate fertilizer in nutrient solution at two levels and at three stages of development . 他在營養液中分兩個用量三個發育階段施入磷肥。

Thus only the metabolizable portions of a feedstuff can provide energy and essential nutrients . 因此,只有飼料的可代謝部分可提供能量和必需的養分。

The total weekly allowance of nutrients is more important than day-to-day exactitudes . 每周營養物質供應的總量要比日與日之間的精確性,更重要得多

The soil water and nutrient relationships are closely interrelated and should be examined together . 土壤水分和養分是緊密聯系的,應當一起研究。

This represents a substantial measure of nutrient conservation in soil and vegetation systems . 這一點正是在土壤植被系統中保持養分的實質措施。