Pedosphere 25(5): 703--712, 2015
ISSN 1002-0160/CN 32-1315/P
©2015 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Developing more effective enhanced biochar fertilisers for improvement of pepper yield and quality |
YAO Chun-Xue1,
S. JOSEPH1,2,3 , LI Lian-Qing1, PAN
Gen-Xing1, Y. LIN2, P. MUNROE3, B.
PACE3, S. TAHERYMOOSAVI3, L. VAN
ZWIETEN4, T. THOMAS5, S. NIELSEN5,
J. YE5 and S. DONNE2 |
1Institute of Resources, Ecosystem and Environment of
Agriculture Nanjing Agricultural University, Nanjing 210095
(China)
2Discipline of Chemistry, University of Newcastle,
Callaghan, NSW 2308 (Australia)
3School of Materials Science and Engineering,
University of New South Wales, Sydney, NSW 2052
(Australia)
4New South Wales Department of Primary Industries,
Wollongbar, NSW 2477 (Australia)
5School of Biotechnology and Biomolecular Sciences
& Centre for Marine Bio-Innovation, University of New
South Wales, Sydney,
NSW 2052 (Australia) |
| ABSTRACT |
| Utilization of biochar at high application rates can
increase soil C and crop yields, decrease greenhouse gas
emissions and reduce nutrient run-off from soils. However,
the high application rate of 10 t ha-1 may not return
a profit to the farmer due to the high cost of biochar. In
this study biochar was modified through pre-treating the
biomass and post-treating with phosphoric acid, minerals
and different chemical fertilisers to study the effects of two
new enhanced biochar fertilisers on the yield and quality
of green pepper in a field experiment with 5 fertilisation
treatments and 3 replications. The two new biochar
fertilisers significantly (P < 0.05) increased the yield of
green pepper (11.33--11.47 t ha-1), compared with the
conventional chemical fertiliser (9.72 t ha-1). The
biochar fertiliser treatments improved the vitamin C
content of green pepper from 236.99 to 278.28 mg
kg-1, and also significantly (P < 0.05) reduced the nitrate
content from 132.32 to 101.92 mg kg-1,
compared with chemical fertiliser. This study indicated
that, compared to the use of conventional chemical
fertiliser, all of the biochar fertiliser treatments could
significantly improve the yield and quality of green
pepper. |
| Key Words: bentonite clay, chemical fertiliser, nitrate
content, phosphoric acid, vitamin C content, wheat straw |
| Citation: Yao, C. X., Joseph, S., Li, L. Q., Pan, G. X., Lin, Y., Munroe, P., Pace, B., Taherymoosavi, S., Van, Z., Thomas, T., Nielsen, S., Ye, J. and S, D. 2015. Developing more effective enhanced biochar fertilisers for improvement of pepper yield and quality. Pedosphere. 25(5): 703-712. |
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