摘要
于 1 995～ 2 0 0 0年在西瓜、黄瓜、芋头、菜豆、花生、甘薯和玉米上进行了丛枝菌根 (AM )菌剂生物肥料大田应用试验。结果表明 ,AM菌剂能促进作物生长 ,单产比对照增加 0～ 66% ,增产总有效率为95.5% ;而获得经济效益总有效率仅为 68.2 % ;其中 ,西瓜、黄瓜、芋头和菜豆增产和获得经济效益总有效率均为 1 0 0 % ,投入产出比分别为 1∶4 .8～ 6.7,1∶4 .4 ,1∶5～ 6.1和 1∶2 .8～ 3.4。轮作 3年后的重茬土壤中定植西瓜菌根苗的产量是对照的 2 .7倍。该生物肥料虽然增加了花生和玉米的产量 ,但其净增效益为负值。GS菌剂增加了甘薯产量 ,而投入产出比仅为 1∶2 .3;GV9号菌剂处理没有增加甘薯产量。表明AM菌剂对作物的有效性存在差异。结论认为 ,对园艺作物施用有效的AM菌剂生物肥料可提高其经济效益 ,同时具有保护生态环境的作用。
Field trials of arbuscular mycorrhizal(AM) fungi as a biological fertilizer applied on watermelon, cucumber, taro, bean, peanut, sweet potato, and corn were carried out. Results showed that the yields of tested crops colonized by AM fungi were increased by 0～66% compared to controls. The total efficiency rate of increasing yields and economic benefits were 95.5% and 68.2% respectively, for all tested crops, one hundred percentage for watermelon, cucumber, taro and bean. The input/output ratios for watermelon, cucumber, taro and bean were 1 ∶ 4.8～6.7, 1 ∶ 4.4, 1 ∶ 5～6.1 and 1 ∶ 2.8～3.4 respectively. The yield of mycorrhizal watermelon plants in replant plots after 3-year rotation was 2.7 times greater than that of control. Although yields of peanut and corn were increased by the biological fertilizer, their pure income were negative. GS preparation enhanced the yield of sweet potato, its input/output ratio was only 1∶2.3; while GV9 preparation did not. So the efficiency of AM fungal fertilizer was varied with crops. It was concluded that efficient AM fungi could increase economic benefits of horticultural crops and play a role in protecting ecological environments.
出处
《莱阳农学院学报》
2001年第2期81-84,共4页
Journal of Laiyang Agricultural College
基金
国家自然科学基金 (39970 498)
山东省自然科学基金 (Y99D0 5 )
和山东省教育厅资助项目的部分内容
关键词
丛枝菌根真菌
产量
经济效益
生物肥料
肥效
AM真菌
arbuscular mycorrhizal fungi
field
watermelon
jaro
bean
cucumber
yield
economic benefits
