The principal macronutrient components of central venous parenteral nutrition include amino acids , lipids , and dextrose ( Table1 ) .

中心静脉肠外营养中的主要常量营养物成分包括氨基酸、脂类和葡萄糖（表1）。

Study on macronutrient absorption of soilless medium cultivated muskmelon

基质栽培甜瓜矿质营养吸收规律的研究

Calcium , an essential macronutrient , plays a crucial role in ameliorating the toxicity of mineral elements , which is reviewed extensively and intensively in the present paper .

钙作为植物必需的元素，在减缓植物矿质元素毒害中起着十分重要的作用.

( 1 ) The result indicated that the five kinds of Fujian shaddocks are high in the water content but low in the other nutriments regarding to the macronutrient .

（1）福建五大主栽柚子品种从营养品质来看，宏量营养素中水分含量较高，其它营养素含量较低。

Nitrogen is considered to be one of the most important macronutrient for rice production , and an amount of nitrogen application can affect markedly characters of source-sink-flow in rice .

氮作为植物生长发育的重要营养元素之一，其对水稻源-库-流特征具有重要的调控作用。