| 生物炭及生物炭-矿物复合物对菌根侵染、小麦和高粱营养的影响 |
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| 作者姓名： | P. BLACKWELL S. JOSEPH P.
MUNROE H. M. ANAWAR P. STORER R. J. GILKES Z. M. SOLAIMAN |
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| 作者单位： | Department of Agriculture and Food Western Australia,
Geraldton Regional Office, Geraldton, WA 6530 (Australia) |
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| 摘 要： |
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Influences of biochar and biochar-mineral complex on
mycorrhizal
colonisation and nutrition of wheat and
sorghum |
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| P. BLACKWELL,S. JOSEPH,P.
MUNROE,H. M. ANAWAR,P. STORER,R. J. GILKES,Z. M. SOLAIMAN.Influences of biochar and biochar-mineral complex on
mycorrhizal
colonisation and nutrition of wheat and
sorghum[J].Pedosphere,2015,25(5):686-695. |
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| Authors: | P BLACKWELL S JOSEPH P
MUNROE H M ANAWAR P STORER R J GILKES and Z M SOLAIMAN |
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| Institution: | Department of Agriculture and Food Western Australia,
Geraldton Regional Office, Geraldton, WA 6530 (Australia) |
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| Abstract: | The high price of synthetic fertilisers and the price
barrier for biochar as a soil amendment have encouraged the
exploration of using biochar in fertiliser replacement
formulations. Biochars coupled with fertilisers can be
applied at lower application rates to achieve benefits in
plant growth and nutrition, as well as soil biological
fertility.~It is necessary to evaluate the use of biochar
as a fertiliser substitute.~Therefore, this study
investigated the comparative influences of biochars,
including {\it Acacia saligna} (AS), Simcoa jarrah (SJ) and
Wundowie jarrah (WJ), mineral fertiliser with microbes (MF
+ M), biochar-mineral complex (BMC) and their combination
on mycorrhizal colonisation, growth and nutrition of wheat
in a glasshouse experiment and sorghum in field conditions.
BMC + MF + M treatment produced higher mycorrhizal
colonisation than MF + M alone, indicating that BMC had a
significant role in increasing mycorrhizal colonisation.~SJ
(treated with acetic acid) and MF + M treatments, as well
as AS + MF + M application, showed si\-milar effects on
mycorrhizal colonisation, but lower colonisation than the
BMC~+~MF~+~M treatment.~Overall, the BMC + MF + M treatment
supported the maximum shoot, root and total plant dry
weight followed by AS + MF + M and WJ + MF + M. The~MF + M
treatment had the maximum shoot N and K concentrations,
while BMC + MF + M application had the maximum shoot P
concentration. AS + MF + M and WJ + MF + M treatments
supported the maximum N uptake by wheat shoots, while BMC +
MF + M supported the maximum P uptake.~The results showed
that biochars and BMCs could increase mycorrhizal
colonisation, plant growth and nutrient uptake of wheat,
particularly N, P, K, S and Zn. The field experiment
confirmed that BMC application at a rate of 300 kg
ha$^{-1}$ could increase the yield of irrigated sorghum on
a loam soil and provide better applied P use efficiency
compared to a water-soluble fertiliser alone. These results
indicated that biochar-based fertilisers might increase the
resilience and sustainability of dryland cropping in
environments such as in Western Australia and warrant
further field evaluation. |
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| Keywords: | carbon sequestration nutrient uptake P use
efficiency soil biological fertility wheat production |
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