复合菌肥代替部分化肥对玉米生长的影响  

Effect of reducing chemical fertilizer insteaed of PGPR compound biofertilizer on Maize

作　　者：荣良燕[1] 姚拓[1] 刘青海[1] 王炳煜[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》2012年第3期65-69,共5页Grassland and Turf

基　　金：国家科技支撑技术(2007BAD89B17);国家自然基金(30960265);国家现代牧草产业体系(CARS-35)资助

摘　　要：筛选出5株植物根际菌株与1株根瘤菌制成复合菌肥,将研制的菌肥和1种引进的菌肥替代20%～30%化肥与全量化肥作对比,研究4种肥料处理对单作玉米生长的影响。结果表明:菌株LM4-3、LH12-3、Lx191、Jm92、LHS11和GDB27之间互不拮抗,可制成复合菌肥;自制复合菌肥替代20%化肥用量可使成熟期玉米地上生物量鲜重提高10%,替代20%～30%的化肥可提高4%～8%的籽实产量,优于引进的菌肥;以复合菌肥替代20%～30%的化肥施用于玉米后,玉米生长良好。The effect of reducing 20%-30% chemical fertilizer insteaed of plant growth promoting rhi- zobacteria （PGPR） compound biofertilizer on Maize was measured under field condition. The results showed that five PGPR strains, LM4-3, L H 12-3, Lx191, J m92 and LHSll, have no antagonism to each other and could be mix-cultured and produce compound bioferitilizer. The compound bioferitilizer with 80% dose of Chemical Fer tilizer 100% place could increase above ground biomass of maize by 10% and enhance yield of seed by 4 %- 8% comparing to dose of chemical fertilizer under field condition. Thus, the application of compound bioferitilizert could re 20% to 30% fertilizer.

关 键 词：PGPR 复合菌肥 化肥 玉米 

分 类 号：S144.1[农业科学—肥料学]