Abstract
In this paper, throng studying effect of biogas slurry of different fertilizer rates on wheat yield and some biological traits, found that environmental conditions in the purple, biogas slurry application rate was 3500kg/667m2, wheat yield was maximum; And heavy metals Content in wheat grain would increase with the increasing of biogas slurry application rate, However, compared with conventional chemical fertilizers, the difference was not significant, biogas slurry agricultural would not cause food heavy metal pollution, Wheat planted was in line with food hygiene standards.
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