摘要
不同施量的坪床改良剂(YNEC)对单播和混播草坪的床土理化特性和草坪特性改良效果的试验表明:施用坪床改良剂,改善了土壤理化性质,增加了土壤肥力,床土的速效氮(AN)、速效磷(AP)和有机质(OM)的含量增加,呈显著正相关(P<0.01),盐分含量,pH值和土壤容重降低,呈显著负相关(P<0.01);有效改善草坪品质,特别是盖度和绿度提高1～3个分值;对草坪草地上植物量的影响呈非直线型正相关,而对分蘖数影响不显著;最佳施用量为2kg/m2。
Different amount of bio-fertilizer(YNEC) applied to three turfgrass species single and mixed sowing lawn. The results show: the fertilizer can significantly(P<0.01)increase the level of available N, available P and organic matter in the soil; decrease the amount of salt and pH; reduce the bulk density of the soil and improve its physical characters; improve lawn performance especially cover age and green degree by 1～3 points. However, the effect on above ground biomass and tillering number is undifferentiated. The recommended apply amount is 2 kg/m^(2).
出处
《草原与草坪》
CAS
2003年第4期42-45,共4页
Grassland and Turf
基金
云南生态技术有限公司资助项目。
关键词
坪床改良剂
单播
混播
床土理化特性
草坪特性
bio-fertilizer
single sowing
mixed sowing
physical and chemical characters
performance
