W.M.Hamilton claimed: "The isolation of New Zealand No 1 White Clover was possibly the greatest single advance made in the recognition of a desirable pasture species-its vigour, high yield,and ability to respond to phosphate topdressing have been outstanding and of the greatest importance in raising pasture yields". P■RAGES Copyright reseved by Long College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University  西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu • W.M. Hamilton claimed: “The isolation of New Zealand No 1 White Clover was possibly the greatest single advance made in the recognition of a desirable pasture species ­ its vigour,  high yield, and ability to respond to phosphate（磷 酸盐） topdressing have been outstanding and of the greatest importance in raising pasture yields