吉林农业大学学报2024，Vol.46Issue(5)：819-827,9.DOI:10.13327/j.jjlau.2023.0041
不同滴灌方式下玉米秸秆还田土壤酶活性变化特征
Characteristics of Soil Enzyme Activity Changes in Maize Straw Re-turn under Different Drip Irrigation Methods
摘要
Abstract
The effects of straw return on soil enzyme activity and spring maize yield under different drip irrigation methods were studied,providing theoretical and scientific basis for soil fertility cultiva-tion and high and stable maize yield in arid areas.The experiment adopted a split-plot design with three factors including straw treatment,drip irrigation method and irrigation quota.Straw treatment was divided into straw return(J)12 t/hm2 and straw leaving field(R).Drip irrigation methods were di-vided into submembrane drip irrigation(M)and shallow buried drip irrigation(Q).There were three levels of irrigation quotas,namely W1(50 mm),W2(150 mm)and W3(250 mm).Through field ex-periments,the effects of straw return on soil enzyme activity and maize yield under different drip irri-gation methods were investigated.The combination of straw return and submembrane drip irrigation could significantly increase soil urease,phosphatase and catalase activities under the condition of ir-rigation quota of 250 mm.Compared with straw return and submembrane drip irrigation,the mode of urease activity was increased by 9.64%,phosphatase activity by 5.05%,and catalase activity by 3.12%compared with straw return and shallow burial drip irrigation.The combination of straw return to the field and submembrane drip irrigation increased soil organic matter,available nitrogen,phos-phorus,and potassium by 13.17%,14.84%,9.79%,39.03%,respectively,compared with straw re-moval combined with submembrane drip irrigation.Under the condition of irrigation quota of 250 mm,the yield of straw return combined with submembrane drip irrigation was increased by 42.53%compared with the mode of straw removal combined with submembrane drip irrigation,and the yield of straw return combined with shallow burial drip irrigation was increased by 5.92%.The combination of straw return and submembrane drip irrigation can significantly improve soil enzyme activity,increase soil nutrients,and promote spring maize yield under suitable irrigation conditions.关键词
春玉米/灌溉方式/秸秆还田/土壤酶活性/产量Key words
spring maize/irrigation method/straw returning/soil enzyme activity/yield分类
农业科技引用本文复制引用
梁欣冉,曹国军,耿玉辉,董浩,李昊,申凯宏,刘思航..不同滴灌方式下玉米秸秆还田土壤酶活性变化特征[J].吉林农业大学学报,2024,46(5):819-827,9.基金项目
吉林省重大科技专项(20220302005NC),国家重点研发计划项目(2017YFD0201505) （20220302005NC）
