猪粪施用对黑土型水稻土磷转化过程的影响  

Effects of pig manure on phosphorus conversion in black paddy soil

作　　者：佟德利 朱广鹏 贺海升 于鑫 陈光蕾 于云飞 李爽 刘静华 李梦琦 汪玉[2] TONG Deli;ZHU Guangpeng;HE Haisheng;YU Xin;CHEN Guanglei;YU Yunfei;LI Shuang;LIU Jinghua;LI Mengqi;WANG Yu(College of Life Science,Shenyang Normal University,Shenyang 110034,China;State Key Laboratory of Soil and Sustainable Agricultural Development/Nanjing Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China;Experimental Teaching Center,Shenyang Normal University,Shenyang 110034,China)

机构地区：[1]沈阳师范大学生命科学学院,沈阳110034 [2]土壤与农业可持续发展国家重点实验室/中国科学院南京土壤研究所,南京210008 [3]沈阳师范大学实验教学中心,沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2022年第6期535-541,共7页Journal of Shenyang Normal University:Natural Science Edition

基　　金：中国科学院黑土地保护与利用科技创新工程专项资助项目(XDA28090300);辽宁省科技厅博士科研启动基金计划项目(2022-BS-227)。

摘　　要：以辽河三角洲水稻土为研究对象,采用培养试验模拟稻田淹水-落干变化,探究了猪粪施用对黑土型水稻土中磷素赋存形态和微生物生物量的影响。结果表明:与不施磷肥相比,添加猪粪处理下的土壤速效磷(Olsen-P)和全磷(total phosphorus, TP)含量在淹水40 d后分别显著增加276.3%和34.1%(P<0.05),无机磷中Ca2-P,Ca8-P,Al-P,Fe-P含量分别显著增加384.7%,142.9%,105.8%和44.1%(P<0.05);中等稳态有机磷(fulvic acid-associated organic phosphorus, FAPo)显著增加36.6%(P<0.05);进一步落干20 d后,土壤Olsen-P和TP含量分别显著增加213.1%和21.6%(P<0.05),Ca2-P,Ca8-P,Al-P,Fe-P含量分别显著增加343.1%,113.7%,89.8%和35.8%(P<0.05);猪粪施用显著增加微生物量磷(microbial biomass phosphorus, MBP)含量,微生物量碳(microbial biomass carbon, MBC)有所增加,但MBC/MBP略有降低。添加猪粪处理可显著增加各培养时期土壤Olsen-P,TP和活性较高的无机磷组分以及淹水培养时的稳态有机磷(humic acid-associated organic P,HAPo)含量,提升了黑土磷库库容和磷素有效性。In this study, the incubation experiment was conducted to explore the effect of pig manure application on phosphorus forms change in black paddy soil. The results show that compared with no application of phosphorus fertilizer, the content of soil available phosphorus(Olsen-P) and total phosphorus(TP) are significantly increased by 276.3% and 34.1%(P<0.05), respectively, after 40 d of flooding with the addition of pig manure, the contents of Ca2-P, Ca8-P, Al-P, Fe-P in inorganic phosphorus increase significantly by 384.7%, 142.9%, 105.8%, 44.1%(P<0.05), respectively, fulvic acid-associated organic phosphorus(FAPo) significantly increase by 36.6%(P<0.05);after futher drying for 20 d, soil Olsen-P and TP contents significantly increase by 213.1%, 21.6%(P<0.05), Ca2-P, Ca8-P, Al-P, Fe-P content significantly increase by 343.1%, 113.7%, 89.8%, 35.8%(P<0.05), respectively;Pig manure application significantly increase microbial biomass phosphorus(MBP) content, and microbial biomass carbon(MBC) increases, but MBC/MBP slightly lower. The addition of pig manure significantly increased the soil Olsen-P, TP, inorganic phosphorus components with high activity at each incubation period and humic acid-associated organic P(HAPo) content during waterlogged incubation, and improved the storage capacity and phosphorus availability of black soil.

关 键 词：猪粪 黑土 水稻土 磷有效性 有机磷 无机磷 微生物量 

分 类 号：S158.5[农业科学—土壤学]