贵州农业科学2026，Vol.54Issue(9)：32-40,9.DOI:10.3969/j.issn.1001-3601.2026.09.004
不同微生物菌剂对盐碱地土壤和水稻产量的影响
Effects of Different Microbial Agents on Soil Properties and Rice Yield in Saline-alkali Land
摘要
Abstract
[Objective]The effects of different microbial agents on soil properties and rice yield in saline-alkali land were investigated to provide a resource support for developing high-quality salt-tolerant microbial fertilizers.[Method]The effects of conventional fertilization+5 kg/hm2 talaromyces granules(T)and conventional fertilization+5 kg/hm2 compound microbial granules(F)on rice yield,soil physicochemical properties,activity of key enzymes and effective viable count of functional microbes were studied by using a randomized block design and taking the conventional fertilization+30%reduction of chemical fertilizer(CK1)and conventional fertilization(CK2)as controls.The multiple action pathways affecting rice yield under different fertilization treatments were quantitatively analyzed by the constructed segmented structural equation model.[Result]Applying microbial fertilizer had a significant positive regulatory effect on rice tillering ability,and improved rice yield by increasing the stems per hole and effective panicles.Compared with CK1 and CK2,the actual rice yield of T and F treatments increased by 20.63%and 4.67%,and 29.25%and 12.15%,respectively.Compared with CK2,the available phosphorus content,soluble Ca2+content,sucrase activity and effective viable bacteria count in soil of T treatment increased by 12.84%,5.69%,18.91%and 166.87%,respectively.The soluble Ca2+content,soluble Mg2+content,sucrase activity and effective viable bacteria count in soil of F treatment increased by 14.42%,4.79%,8.13%and 571.68%compared with CK2,respectively.Total salt content,pH and conductivity of T and F treatments decreased by 9.77%and 10.50%,2.02%and 3.57%,and 11.36%and 18.51%compared with CK2,respectively,indicating that they can obviously improve saline-alkali soil conditions.The results from correlation analysis and the segmented structural equation model showed that applying microbial agents had the highest total positive effect(0.59)on rice yield,and its regulatory pathways mainly promoted rice yield increase by improving soil available phosphorus supply,increasing effective viable bacteria count of functional microbes and reducing total salt content in soil.[Conclusion]Talaromyces granules and compound microbial granules mainly promote rice yield increase by improving soil available phosphorus supply,increasing effective viable bacteria count of functional microbes and reducing total salt content in soil.Both bacterial agents show good application potential in rice cultivation and soil improvement in saline-alkali land.关键词
水稻/土壤/微生物菌剂/篮状菌/复合微生物颗粒/分段结构方程模型/盐碱地Key words
rice/soil/microbial agent/talaromyces/compound microbial granule/segmented structural equation model/saline-alkali land分类
农业科技引用本文复制引用
王向向,殷博,孟利强,吴皓琼,张婷玉,范恩越,姜超,曹旭,商亮,张建伟..不同微生物菌剂对盐碱地土壤和水稻产量的影响[J].贵州农业科学,2026,54(9):32-40,9.基金项目
黑龙江省科学院重大攻关项目(ZDGG2024SW02) （ZDGG2024SW02）
