Study On Technology Of Soilless Lawn In Arid And Semi-arid Area

The soilless grass blanket has the advantages of high quality,clean,water saving,soil conservation,sustainable production and wide practical range.It is a new technology of lawn production with high prospect and high technical content.But because the lawn is a seasonally strong,with a sustained consumption and vitality of a commodity,so the market by the interference of large seasonal fluctuations in the production of only to improve the quality of lawn and try to shorten the production cycle,In order to reduce the opportunity to produce lawn time to live and increasethe output value of land per unit area,and enhance market competitiveness.In this paper,the effects of different segregation materials,different sowing and different roll time on the mattressing of grassland in arid and semi arid areas were studied.The following conclusions are drawn:(1)treatment A is non-woven,specifications for the 30 g / ?,two meters wide;2,treatment B for the plastic film,the specifications for the thickness of 0.015 mm,1200mm wide polyethylene film;3,The treatment of C for the polypropylene braid,specifications for the 40 × 40 root / 10cm)comparative test study shows that the use of treatment A significantly lower than the treatment of B and treatment C;in the root of the study,the treatment of B and treatment C The difference was significant,but they were significantly different from those of treatment A,which was significantly better than treatment A;treatment of B and treatment C had no significant difference in turf strength,but better than treatment A;(2)The results showed that there were significant differences in the sowing rate between 20,25 and 30.When the sowing rate increased to 30 g /? and 35 g /? and 40 g /?,the three sowing The difference between the amounts is not significant.It shows that with the increase of seeding rate,the comprehensive quality of soilless grass carp is on the rise,but the sowing rate increases to30g/ ?,the rising trend is no longer obvious.The quality of Kentucky bluegrass,Festuca arundinacea and Lolium perenne were the best when the yield was 35 g / ? by the order of weighted correlation and equal degree of relevance.In this paper,by measuring the time of blanket,root condition,turf strength,breakage rate and underground biomass change,this paper clarified the isolation layer material and suitable seeding amount of soilless blanket in arid and semi arid area.Which is suitable for the production process of soilless grass carpets in arid and semi-arid areas of Northwest China.It provides some reference for the development of tall fescue,Poa pratensis and ryegrass in the arid and semi-arid areas.