常見例句When combined N was appropriately applied to soil, on which alfalfa and meadow fescue had been planted, it could promote increasing nitrogen fertility in soil. 少量化合態(tài)氮素的施入對種植苜蓿牛尾草的土壤氮素肥力的提高有明顯的促進作用。Effects of planting patterns on dry weight, N yield and dinitrogen fixation in alfalfa meadow fescue pasture are studied by using split plot design in the field for two successive years. 田間試驗采用裂區(qū)設(shè)計,在不同種植模式下采用15N示蹤研究了苜蓿與牛尾草混播及單播草地的產(chǎn)草量、產(chǎn)氮量和固氮量的變化。meadow fescue(Festuca pratensis) 草甸羊茅There are many herds of cattle in the meadow. 牧場上有許多牛群。He's pasturing his cattle on the top meadow. 他正在高處的草地上放牛。 返回 meadow fescue