控释型黄腐酸掺混肥对水稻生长及土壤养分的影响  

Effects of Controlled-release Fulvic Acid Bulk Blending Fertilizer on Rice Growth and Soil Nutrients

作　　者：郭保俊 卓文韬 程琳 李雪 陈舟 孙子钦 陈宝成 Guo Baojun;Zhuo Wentao;Cheng Lin;Li Xue;Chen Zhou;Sun Ziqin;Chen Baocheng(National Engineering Research Center for Effi cient Utilization of Soil and Fertilizer Resources,Tai’an,271018;Colleage of Resources and Environment,Shandong Agricultural University,Tai’an,271018)

机构地区：[1]土肥高效利用国家工程研究中心,泰安271018 [2]山东农业大学资源与环境学院,泰安271018

出　　处：《腐植酸》2024年第4期31-37,共7页Humic Acid

基　　金：十四五重点项目(项目编号2022YFD1700605);国家自然科学基金项目(项目编号42277356)。

摘　　要：为了提高肥料利用率和作物产量,在普通掺混肥和控释型掺混肥中添加黄腐酸,并通过盆栽试验,研究了不同施肥处理对土壤养分和水稻生长的影响。结果表明:控释型掺混肥添加黄腐酸钙镁肥可以较好地促进养分吸收,增加了水稻株高;黄腐酸掺混肥全量(CFA1)、控释型黄腐酸掺混肥全量(CRFA1)、控释型黄腐酸掺混肥减氮20%(CRFA2)、控释掺混肥+黄腐酸钙镁肥(CRFCa)处理均可显著增加水稻产量,增产率在10.2%~24.6%;黄腐酸掺混肥减量20%(CFA2)、控释掺混肥减量20%(CRF2)处理则没有达到增产效果;各施氮肥处理间水稻叶片叶绿素差异不显著。各施肥处理与掺混肥全量(CF1)处理相比,氮肥农学利用率提高1.7%~40.2%,氮肥贡献率提高0.6%~14.5%。总体上,CRFA1、CRFA2和CRFCa处理能较好地促进水稻生长、提高水稻产量、提高氮肥农学利用率和氮肥贡献率。In order to improve fertilizer efficiency and crop yield,fulvic acid was added to ordinary bulk blended fertilizer and controlled-release bulk blending fertilizer,and the effects of different fertilization treatments on soil nutrients and rice growth were studied through pot experiments.The results showed that the addition of calcium magnesium fulvate fertilizer to controlled-release bulk blending fertilizer could better promote nutrient absorption and increase the plant height of rice.The total amount of fulvic acid bulk blending(CFA1),the total amount of controlled-release fulvic acid bulk blending fertilizer(CRFA1),the nitrogen reduction of 20%of controlled-release fulvic acid bulk blending fertilizer(CRFA2),and the treatment of controlled-release bulk blending fertilizer+calcium magnesium fulvate fertilizer(CRFCa)significantly increased rice yield,and the yield increase rate was 10.2%~24.6%.The 20%reduction in the fulvic acid bulk blending fertilizer(CFA2)and the 20%reduction in the controlled-release bulk blending fertilizer(CRF2)did not increase the yield.There was no significant diff erence in the chlorophyll content of the rice leaves between the nitrogen fertilization treatments.Compared with the total amount of bulk blending fertilizer(CF1)treatment,the nitrogen fertilizer agronomic use efficiency increased by 1.7%~40.2%,and the nitrogen fertilizer contribution rate increased by 0.6%~14.5%.In general,the combined application of fulvic acid and controlled-release bulk blending fertilizer promoted rice growth,increased rice yield,increased nitrogen fertilizer agronomic use efficiency,and increased nitrogen fertilizer contribution rate.

关 键 词：黄腐酸 控释肥 水稻 产量 土壤养分 

分 类 号：TQ444.6[化学工程—化学肥料工业] S511[农业科学—作物学]