施肥对科尔沁地区退化打草场的影响

Restoration of Fertilization on Horqin Natural Cutting Pasture

本项目以科尔沁草原退化天然打草场为研究对象,共选择样地400亩,进行了围封,并分别对退化打草场进行了未施肥(对照)、施肥5kg/亩、施肥10kg/亩和施肥15kg/亩的试验研究。结果表明:施肥对退化沙地草地植被生长特征及生物量有着明显的促进作用,打草场施肥两年,施肥15kg/亩的草群自然高度、植被盖度、干草产量和优势植物干重,以及土壤营养成分均比对照、施肥5kg/亩和施肥10kg/亩效果显著,说明施肥有利于科尔沁地区退化打草场的培育改良。

To improve the yield and quality of natural Cutting Pasture of Horqin,a total of 400 Mu sample land were selected with fertilization. Two yearsof fertilization in the pasture, the natural height, vegetation cover, hay yield and soil nutrient content of the 15kg fertilized grass were more effective than enclosing, fertilizing 5kg and fertilizing 10kg, which was more conducive to the improvement of degraded grassland in Horqin area.