草坪建植应用保水剂对草坪草生长影响的研究

STUDY ON AQUASORB FOR PLANTING TURF GRASS GROWING EFFECT

青藏高原由于其特殊的地理条件和气候条件,人工种植的草坪多数因干旱、缺水而退化严重,试验选用草地早熟禾(Poa pratensis)、紫羊茅(Festuca rubra L.)、多年生黑麦草(Lolium perenne L.)按一定比列混播,配合使用不同行浓度的保水剂,通过对草坪草株高、地上生物量、根冠比、密度、盖度、质地、叶片相对含水率、叶绿素含量的测定的测定,结果表明:旱露植宝Ⅱ号、旱露植宝Ⅲ号保水剂在10g/m2的情况下,草坪草的地上生物量状况表现较优,其中Ⅲ号保水剂较佳。两种保水剂在15g/m2情况下,株高、草坪草的叶绿素含量、叶片的相对含水率有明显的提高,尤其是Ⅲ号保水剂。而保水剂在20g/m2的情况下,草坪草的密度有较为显著的提高。

The qinghai - tibet plateau due to its special geographical conditions and climate conditions, cultivat- ed lawn because of drought, water shortage and most serious degradation, experiment chooses the bluegrass lawn precocious （ Poa pratensis）, violet sheep spear （ Festuca rubra 1. ）, perennial ryegrass （ Lolium perenne） （ Lolium perenne 1. ） according to certain than mixed seeding listed, used together with the concentration of super absorbent polymers not counterparts, through to the turf grass plant height, the ground biomass, rootshoot ratio, density and coverage, and the quality of a material, leaf relative water content, the determination of the determination of chlorophyll content, and the results showed that the drought uncover implant treasure Ⅱ num- ber, drought, Ⅲ dew plant treasure of aquasorb concentration in lOg/m2, the condition of the lawn grass biomass than other concentration has a better super absorbent polymers in the concentration of 15g/m2, plant height, lawn grass leaf chlorophyll content, the relative moisture content have significantly improved, especially Ⅲ th absorbent agent. And absorbent agent in 20g/m2 concentration, the density of the lawn grass has more dramatically increasing.