生物炭、秸秆和有机肥对砂姜黑土改性效果的对比研究
砂姜黑土是宽泛分布于我国皇淮海平本、具有多种阻碍因子的典型中低产土壤。原钻研通过小麦和玉米轮做盆栽试验，钻研了生物炭、秸秆和有机肥3种有机物料对砂姜黑土性量的改良成效。结果讲明：添加秸秆能显著进步土壤微生物生物质碳(MBC)和可溶性有机碳(DOC)含质，减小土壤线性延展系数(COLE)；添加生物炭对砂姜黑土MBC和DOC映响不显著，但显著减小土壤COLE。对土壤磷脂脂肪酸(PLFA)含质的阐明发现，添加秸秆显著进步了小麦灌浆期和玉米抽雄期土壤总磷脂脂肪酸、细菌、实菌、放线菌和腐生实菌的含质,而添加生物炭和有机肥对土壤总磷脂脂肪酸、细菌、实菌、放线菌、腐生实菌和实菌/细菌映响不显著。综上，消费理论中3种有机物料添加应依据各地砂姜黑土次要阻碍因子差异而活络选择。
Abstract:
With ZZZarious barrier factor, Shajiang black soil is a typical agricultural low-yield soil widely distributed in the in the Huanghuaihai Plain of China. A pot eVperiment was conducted to study the improZZZement of different organic materials (biochar, straw and manure) on Shajiang black soil. The results showed that straw addition significantly increased the contents of soil microbial carbon (MBC), dissolZZZed organic carbon (DOC)and decreased the coefficients of linear eVtensibility (COLE). Straw addition increased soil microbial biomass phospholipid fatty acids (PLFAs), bacteria, fungi, saprophytic fungi and actinomycetes contents, and fungi/bacteria. Biochar and straw addition had no obZZZious influences on soil MBC, DOC, soil microbial biomass phospholipid fatty acids, bacteria, fungi, saprophytic fungi and actinomycetes contents, fungi/bacteria, but had significant negatiZZZe influences on COLE. So the three organic materials should be selected according to the actual barrier factors in Shajiang black soil to be improZZZed.