脲醛泡沫基质在高羊茅草坪建植中的应用研究

Research on Urea Formaldehyde Foam as Establishment Substrate in Tall Fescue Turf Planting

试验尝试将脲醛泡沫栽培基质引入草坪建植,通过对脲醛泡沫基质理化性质分析,选用3种脲醛泡沫基质(A、B、C),同时设覆土和不覆土处理,进行了草坪建植田间试验。结果表明:3种脲醛泡沫基质的含氮量分别为23.47%、24.50%和25.24%,且均属于低容重基质,其理化性状符合进行草坪种植要求。脲醛泡沫基质A和B,其覆土处理和不覆土处理及脲醛泡沫基质C覆土处理草坪的发芽率、评分、成坪时间差异不大。与常规土壤草坪建植相比,草坪质量建植初期无显著差异而后期显著提高,且草坪绿期、草屑量等考核指标均显著优于常规土壤草坪建植。从草坪总体质量及简化草坪建植过程和养护考虑,脲醛泡沫A和B采用直播的方式进行草坪建植是一种较为简单易行的草坪建植方式。

Based on assay of physical and chemical properties of urea formaldehyde foam（UFF）,the research attempt to introduce three kinds of UFF（UFFA, UFFB and UFFC）as new type turf establishment substrate. A field experiment was conducted to investigate the effects of UFF as turf establishment substrate on tall rescue turf planting. The results showed that three kinds of UFF with nitrogen content of 23. 47% ,24. 50% and 25. 24% had low bulk density and could he use for turf planting. No significant difference was observed on the germination rate,score assessment and establishing time among treatments of UFFA and UFFB with soil covering or not as compared to treatment of UFFC with soil covering. Compared to conventional soil planting treatment, the turf quality from UFFA（with and without covering）, UFFB（with and without covering）and UFFC（with covering）treatments had no difference at early establish stage,but it had significant difference in the late stage, as well as the indexes of green period and clipping yield. Considering the quality, the simplified establishing management and maintenance of turf, UFFA and UFFB by means of direct seeding was a practicable way in turf establishing.