聚马来酸酐对设施土壤微生物生物量碳、氮及土壤呼吸速率的影响  

Effects of PMA on Soil Microbial Biomass Carbon, Soil Microbial Biomass Nitrogen and Soil Respiration Rate in Greenhouse Soil

作　　者：乔洁[1,2] 张春丹[1] 韩晓光[1] 

机构地区：[1]廊坊师范学院,河北廊坊065000 [2]河北省高校食药用菌应用技术研发中心,河北廊坊065000

出　　处：《湖北农业科学》2015年第23期5877-5880,5886,共5页Hubei Agricultural Sciences

基　　金：河北省高等学校科学技术研究青年基金项目(QN2015169);廊坊市科学技术局项目(2013012004);廊坊师范学院青年基金项目(LSLQ201406);廊坊师范学院微生物学重点学科项目(2015001)

摘　　要：研究聚马来酸酐对设施土壤有机碳、全氮、土壤微生物生物量碳、生物量氮及土壤呼吸速率的影响。结果表明,单施氮肥、聚马来酸酐氮肥配施均显著提高了土壤微生物生物量碳、氮含量与土壤呼吸速率强度。单施聚马来酸酐显著提高土壤C/N,对土壤微生物生物量碳、氮与土壤呼吸速率无显著影响。土壤微生物生物量碳、氮及土壤呼吸速率与土壤有机碳、全氮呈极显著(P<0.01)或显著相关关系(P<0.05)。与聚马来酸酐氮肥配施处理相比,单施氮肥对土壤微生物生物量碳、氮以及土壤呼吸速率无显著影响。氮肥配施适量的聚马来酸酐对提高设施土壤肥力、改善设施土壤质量效果最好。土壤微生物生物碳、氮及土壤呼吸速率可反映土壤质量的变化,作为评价设施土壤肥力的指标。Effect of poly maleic anhydride（PMA） on soil organic carbon, total nitrogen, microbial biomass carbon, microbial biomass nitrogen and soil respiration rate were studied in green house. The results showed that the application of nitrogen fertilizers and the mixture of PMA and nitrogen fertilizers could enhance the quantity of microbial biomass carbon, microbial biomass nitrogen and the intensity of soil respiration rate. The application of PMA increased the quantity of soil C / N, but had no significant effect on microbial biomass carbon, microbial biomass nitrogen and soil respiration rate. The correlation between soil organic carbon, total nitrogen and microbial biomass carbon, microbial biomass nitrogen and soil respiration rate were significantly（P〈0.05） or highly significant（P〈0.01）.Compared with the application of the mixture of PMA and nitrogen fertilizers, the application of nitrogen fertilizers had no significant effect on microbial biomass carbon, microbial biomass nitrogen and soil respiration rate. So the application of the mixture of nitrogen fertilizers with an appropriate amount of PMA could improve the greenhouse soil fertility and quality. Microbial biomass carbon, microbial biomass nitrogen and soil respiration rate could reflect the change of greenhouse soil fertility and value greenhouse soil quality.

关 键 词：聚马来酸酐 设施土壤 土壤微生物生物量碳 土壤微生物生物量氮 土壤呼吸速率 

分 类 号：S154.3[农业科学—土壤学]