磷、钾肥与多效唑互作对沟叶结缕草养分吸收和细胞质膜透性的影响  

Effects of interaction of phosphorus,potassium fertilizer and paclobutrazol(PP333)on nutrients absorption and cell membrance permeabity of Zoysiagrass matralla

作　　者：周红艳[1,2,3] 林文雄[2] 

机构地区：[1]福建农业职业技术学院,福建福州350119 [2]福建农林大学农业生态研究所,福建福州350002 [3]江西农业大学农学院,江西南昌330045

出　　处：《草原与草坪》2014年第6期68-73,共6页Grassland and Turf

基　　金：福建农业职业技术学院院级课题(13-ES-05);国家自然科学基金项目(3997044)资助

摘　　要：试验采用裂裂区设计,研究了磷、钾肥与多效唑互作对沟叶结缕草养分吸收和细胞质膜透性的影响。结果表明,磷、钾肥、多效唑间存在正互作效应。合理配施能显著促进沟叶结缕草N、P、K养分物质积累,为沟叶结缕草越冬奠定物质基础,同时诱导质膜透性降低。综合分析试验最优组合为P2O560kg/hm2、KCl 140kg/hm2、多效唑250mg/L。In order to solve the problem of degradation of zoysiagrass matralla in winter of Fujian Province and subtropical area. The study on the effects of interaction of phosphorus, potassium fertilizer and pa clobutrazol（PP333） on nutrients absorption and cell membrance permeabity of Zoysiagrass matralla was done using a split-split-block field design. The results showed there was positive interaction between phosphorus,potassium fertilizer and paclobutrazol. The comnined application of phosphorus, potassium fertilizer and pa- clobutrazol could significantly improved the nutrients（nitrogen phosphorus and potassium） absorbtion of Zoysiagrass matralla,which had established nutrient base for zoysiagrass in winter season, and coupling with the decrease of cell membrance permeabity. The optimum combination of phosphorus, potassium and paclobutrazol （PP333） was proposecd based on comprehensive analysis under the condition of this test,which was P2O5：60 kg/hm^2 ＋K2O：140 kg/hm^2 ＋paclobutrazol（PP333） .250 mg/L.

关 键 词：沟叶结缕草 磷、钾肥和多效唑互作 裂裂区设计 养分吸收 细胞质膜透性 

分 类 号：S688.4[农业科学—观赏园艺]