Abstract
The aim of the work was to analysis effects of biogas residue continuous application on soil fertility improvment. The results showed that biogas residue addtion to peach orchard improved soil quality. Biogas residue application reduced soil bulk density quickly in a short term, improved soil TP, effctive N and available P contents significantly, as well as promoted soil TOC and humus acid accumulations to imoprove soil fertility. The results provide technical support for biogas utilization.
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