cultivated perennial grass

基本解釋

Alfalfa(Medicago sativa L. )is a perennial legume grass which was cultivated widely on semi-humid areas of the loess plateau.
紫花苜蓿是多年生豆科牧草作物，在黃土高原半溼潤區(qū)大麪積栽培。
Based on the long-term observation, the stability, especially by applying N-fertilizer, of mixture grassland of cultivated perennial grass is studied.
本研究在長期觀測的基礎(chǔ)上，就多年生混播禾草草地的穩(wěn)定性，尤其是施氮條件下的穩(wěn)定性進(jìn)行了研究。
A perennial rhizomatous grass (Poa pratensis) native to Eurasia and North Africa and naturalized throughout the United States. It is commonly cultivated for pasture and lawns.
原生於歐亞大陸和北非的一種多年生根狀莖草本植物（草地草熟禾草熟禾屬），在整個(gè)美國也已移植成功。一般做爲(wèi)牧草和草坪來種植。
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