8种土壤改良剂对多年生黑麦草草坪质量的影响  

Effect of 8 soil conditioners on the qualityof perennial ryegrass turf

作　　者：唐云智[1] 马晖玲[1] 

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州730070

出　　处：《草原与草坪》2015年第6期51-58,共8页Grassland and Turf

基　　金：国家自然科学基金"草地早熟禾种间体细胞杂交的研究"(31160482)资助

摘　　要：在兰州新区通过田间小区试验,研究了8种土壤改良剂对多年生黑麦草草坪质量的影响。结果表明:8种土壤改良剂都提高了草坪叶绿素含量,其中,7种处理(除硫磺粉处理)都增大了草坪草的密度、高度、地下生物量和地上生物量,6种处理(除硫磺粉、硫磺粉+磷矿粉处理)都增大了叶宽和盖度,"肥帝溉"处理均为最大处理(P<0.05),其相应草坪质量指标最大值分别为,叶绿素含量为3.1 mg/g,密度为2.0株/cm^2,叶宽为1.8 mm,盖度为95.3%,高度为10.9cm,地下生物量为709.3 g/m^2,地上生物量为638.6g/m^2;延长草坪绿期方面,"美魅"+过磷酸钙处理为186 d,与对照差异显著(P<0.05)。8个处理和对照(CK)的草坪质量综合评价高低顺序为,"肥帝溉"大量元素水溶肥料>"康地宝"盐碱土壤改良剂>"美魅"土壤改良剂+过磷酸钙>过磷酸钙+石膏粉>过磷酸钙>硫磺粉+磷矿粉>"甘云翼">对照>硫磺粉。8 soil conditioners were selected to improve the saline soil in Lanzhou New Area and the effects on the quality of perennial ryegrass turf were studied.The results showed that the chlorophyll content was increased by 8 soil conditioners;the density,height,underground biomass and aboveground biomass were increased by 7 soil conditioners（except sulfur powder）;the leaf width and coverage were increased by 6 soil conditioners（except sulfur powder,sulfur powder ＋ phosphate rock powder）.Among 8 soil conditioners,＇Feidigai＇was the best in terms of turf quality,and the values of quality indicators,including chlorophyll content,density,leaf width,coverage,height,underground biomass and aboveground biomass,were 3.1 mg/g,2.0/cm^2,1.8 mm,95.3%,10.9 cm,709.3 g/m^2,and 638.6 g/m^2 respectively.And in terms of green period,＇Meimei＇ ＋ calcium superphosphate treatment was the best（green period was 186 days）.The comprehensive assessment of turf quality showed that the rank of the turf quality under 8 treatments and CK was ＇Feidigai＇ water soluble fertilizer＇Kangdibao＇ saline soil conditioner ＇Meimei＇ soil conditionercalcium superphosphate＋ gypsum powdercalcium superphosphatesurphur powder＋phosphate rock powder＇Ganyunyi＇CKsurphur powder.

关 键 词：土壤改良剂 多年生黑麦草 草坪质量 

分 类 号：S156[农业科学—土壤学]