吉林农业大学学报2024，Vol.46Issue(5)：697-704,8.DOI:10.13327/j.jjlau.2023.20211
兼顾活性与稳定性有机质的黑土培肥机理
Fertilization Mechanism of Active and Stable Organic Matter in Black Soil
摘要
Abstract
Due to the differences of carbon chemical composition,there are differences in the activ-ity and stability of soil organic matter after application of corn straw and peat.To explore this effect,a field micro-area experiment based on full straw return to the field(10 000 kg/hm2)was conducted,with a total of 5 treatments:control treatment(ck),corn straw(0P),corn straw and peat 2∶1(1/3P),corn straw and peat 1∶2(2/3P),and peat(P).The results show that with the increase of the proportion of peat application,the content of soil organic matter,the conversion rate of soil organic matter,the content of humic acid and the ratio of humic acid to soil organic matter increased at first and then de-creased.The 2/3P treatment was the highest,with an increase of 6.47%,63.38%,30.84%,and 22.38%compared to the 0P treatment,respectively,while the content of mineral-bound organic mat-ter,the condensation degree,aromaticity and hydrophobic/hydrophilic ratio of humic acid increased gradually,and the P treatment even exceeded that of ck.To sum up,when the ratio of corn straw to peat is 1∶2,it has a positive effect on balancing soil activity and stable organic matter formation,making it suitable for soil fertilization.关键词
黑土/活性有机质/稳定性有机质/腐殖质/HA结构Key words
black soil/active organic matter/stable organic matter/humus/HA structure分类
农业科技引用本文复制引用
任超,窦森,郭聃,周健颖,张一枫..兼顾活性与稳定性有机质的黑土培肥机理[J].吉林农业大学学报,2024,46(5):697-704,8.基金项目
吉林省重点研发计划项目(20200402098NC) （20200402098NC）
