嗜碳酸盐新型微藻JB6液体肥对水稻的促生效果  

Effects of A New Carbonate-Philic Microalgae Chlorellasp.JB6 Liquid Fertilizer on Rice Growth

作　　者：董星冶 李立新[1] 柳参奎 卜媛媛 DONG Xing-ye;LI Li-xin;LIU Shen-kui;BU Yuan-yuan(College of Life Science,Northeast Forestry University,Harbin 150006,China;College of Forestry and Biotechnology,Zhejiang Agriculture and Forestry University,Lin'an 311300,China)

机构地区：[1]东北林业大学生命科学学院,黑龙江哈尔滨150006 [2]浙江农林大学林业与生物技术学院,浙江临安311300

出　　处：《黑龙江农业科学》2022年第8期36-41,共6页Heilongjiang Agricultural Sciences

基　　金：教育部创新团队支持项目子项目(IRT17R99)。

摘　　要：为探究嗜碳酸盐新型微藻Chlorellasp.JB6缓解盐碱环境对水稻生长胁迫的能力,以水稻长白9号为材料,采用耐盐微藻JB6生物肥在温室环境下喷灌土壤,研究不同剂量藻肥对盐碱胁迫下禾本科水稻生长情况的影响。结果表明:水培试验中,处理液pH为8.5时对水稻幼苗生长有明显的抑制作用;土培试验中,耐盐微藻JB6对盐胁迫下的水稻生长有一定的缓解作用,不同浓度的藻肥缓解效果不同。其中藻肥浓度为100%处理下,水稻的株高、叶片色泽都显著高于对照;藻肥浓度为50%处理下,对盐胁迫下水稻生长的缓解效果最佳。耐盐微藻JB6对水稻根际土壤pH也有一定的改善,藻肥浓度为50%时效果最显著。由此可见,嗜碳酸盐新型微藻JB6具有缓解盐胁迫的能力,50%浓度藻肥缓解水稻盐碱胁迫效果最佳。In order to explore the ability of a new carbonate-philic microalgae Chlorellasp.JB6to alleviate the growth of rice in soils with extremely high salt and alkaline.Oryza sativa L.Changbai 9 was used as experimental materials,we analyzed the effect of salt-tolerant microalgae JB6biofertilizer on the growth of salt-stressed rice by sprinkler irrigation.The results showed that in the hydroponic experiment,when the pH of the treatment solution was 8.5,the growth of rice seedlings was significantly inhibited.In soil culture experiment,salt-tolerant microalgae JB6had a certain mitigation effect on rice growth under salt stress,and different concentrations of algal fertilizer had different mitigation effects.Under the treatment of 100%algae fertilizer,the growth of rice was alleviated,and the plant height and leaf color were significantly higher than those of the control group.Algae fertilizer concentration of 50%treatment,the best mitigation effect on rice growth under salt stress.Salt-tolerant microalgae JB6also improved the pH of rice rhizosphere soil,and the effect was the most obvious when the concentration of algae fertilizer was 50%.Thus,the addition of Chlorellasp.JB6biofertilizer could effectively alleviate the inhibition of salt stress on plants,and 50%algae fertilizer had the best effect on alleciationg salt alkali stress in rice.

关 键 词：水稻 嗜碳酸盐新型微藻 盐碱胁迫 

分 类 号：S511[农业科学—作物学]