ZHANG Hanyi, ZHANG Min, WANG Jing, et al. Effects of Combined Application of Chemical Fertilizers with Different Mushroom Residues on Soil Fertility and Enzymes Activities[J]. 2022, 36(6): 364-370.
DOI:
ZHANG Hanyi, ZHANG Min, WANG Jing, et al. Effects of Combined Application of Chemical Fertilizers with Different Mushroom Residues on Soil Fertility and Enzymes Activities[J]. 2022, 36(6): 364-370. DOI: 10.13870/j.cnki.stbcxb.2022.06.044.
Effects of Combined Application of Chemical Fertilizers with Different Mushroom Residues on Soil Fertility and Enzymes Activities
In order to promote the resource utilization of mushroom residues
and to reduce the application rate of chemical fertilizers and increase its use efficiency
the residues of Auriculariapolytricha
Lentinus edobes
and Agaricus bisporus were selected as organic materials in this study. Based on the nitrogen application of conventional chemical fertilizers in Chengdu Plain
a total 8 treatments were set: blank treatment (CK)
conventional chemical fertilizer (CF)
25% and 50% Auriculariapolytricha residues (APR1
APR2)
25% and 50% Lentinus edobes residues (LER1
LER2)
25% and 50% Agaricus bisporus residues (ABR1
ABR2). The differences in soil fertility and soil enzymes activities of different mushroom residues and chemical fertilizers were discussed. The results showed that the mushroom residue and chemical fertilizers could effectively enhance the activities of soil sucrase and urease
increase the contents of soil organic carbon
total nitrogen
total phosphorus
available phosphorus and available potassium
promote the accumulation of nitrogen in crops
and improve the utilization rate of nitrogen fertilizer
thereby promoting crop production. However
the higher C/N ratio (C/N>30)
P2O5 replacement rate and K2O replacement rate of mushroom residues resulted in a decrease in nutrient use efficiency and a significant decrease in yield. Even the positive effects of P2O5 and K2O on soil and crops were not enough to compensate
which was significantly negatively correlated with crop yield. On the whole
the mushroom residues with a C/N ratio close to 30
the use of 50% or less of nitrogen fertilizer replacement rate in the rice season
and the use of 25% nitrogen fertilizer replacement rate in the wheat season are conducive to increasing crop yield.
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Related Author
XIAO Yang1
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TIAN Li1
HUANG Yaxi1
LU Yuncai1
XU Lijian1
MENG Kai1
LIU Zaiqi2
Related Institution
College of Agricultural Resources and Environment/Key Laboratory of Agricultural Resources Utilization and Environmental Security, Heilongjiang University