YNEC坪床改良剂对4种草坪草越冬性状的影响研究

Effect of YNEC bio-fertilizer on the overwintering of four turfgrass species

进行了不同施量的YNEC坪床改良剂对 4种草坪草的越冬性状的影响效果试验。结果表明 :草坪草绿期延长 ,再生速度增大 ,与空白对照相比差异显著 ;低施量时 ,随改良剂施用量的增加 ,草坪草分蘖数呈增加趋势 ,但增加到较高施量时 ,随施用量的增加 ,分蘖数呈减少趋势 ;各处理土壤表层 (0～ 30cm)的根重 ,在1～ 2kg/m2 低施量时 ,总体上随施量的增加而增加 ,但到达一定施量后 ,地下生物量反而迅速下降 ;能有效改善草坪品质 ,特别是使盖度和绿度提高 1～ 3个分值 ;2kg/m2 为最佳施用量。

Different amounts of bio-fertilizer (YNEC) were applied to monocultural lawn of four turfgrass species. Along with increasing levels of fertilizer, the green period extended and the regeneration speed increased. At low application levels, tiller number increased with increase of fertilizer level, but at relatively high application levels, tiller number decreased with increasing fertilizer level. At low fertilizer application levels (1～2 kg/m^2), underground biomass at 0～30 cm soil depth increased with increase in fertilizer level, but when the application level reached a certain point, the underground biomass declined rapidly. In order to improve lawn quality, especially by improving coverage and greenness 1～3 points, the recommended application level is 2 kg/m^2.