论文部分内容阅读
用多年生黑麦草品种Cutter在狗牙根建植的草坪上进行冬季盖播的研究结果表明 :从盖播草坪群落的合理演替角度来看 ,最适宜的盖播量为 2 0g/m2 ;从施肥效果来看 ,在生长前期实行高施肥 (90 g/m2 ·y) ,可以导致盖播群落向有利于黑麦草生长的方向演替 ,加速盖播草坪的成坪周期 ,而在黑麦草夏枯前后的过渡阶段以低施肥 (45g/m2 ·y)为佳 ,这样可以降低黑麦草生长的优势度 ,使盖播群落向有利于狗牙根恢复生长的方向发展
The results of winter covered seeding of perennial ryegrass Cutter on bermudagrass grass showed that the optimum cover seeding rate was 20 g / m 2 from rational succession of cover sowing lawn community. The results showed that the high fertilization (90 g / m2 · y) in the early stage of growth could result in the succession of cover seeding succession in the direction of ryegrass growth and the acceleration of the lawn filling cycle. However, The low fertilization (45g / m2 · y) was the pre-and post transitional stage, which could reduce the dominance of ryegrass and make the cover-sowing community develop in favor of the restoration of bermudagrass