Use of phytotoxic rice crop residues for weed management

Pheng, S, Olofsdotter, M, Jahn, G and Adkins, S (2010) Use of phytotoxic rice crop residues for weed management. Weed Biology and Management, 10 3: 176-184. doi:10.1111/j.1445-6664.2010.00382.x

Author Pheng, S
Olofsdotter, M
Jahn, G
Adkins, S
Title Use of phytotoxic rice crop residues for weed management
Journal name Weed Biology and Management   Check publisher's open access policy
ISSN 1444-6162
Publication date 2010-09-01
Sub-type Article (original research)
DOI 10.1111/j.1445-6664.2010.00382.x
Volume 10
Issue 3
Start page 176
End page 184
Total pages 9
Place of publication Richmond, Australia
Publisher Wiley-Blackwell Publishing Asia
Language eng
Formatted abstract
There is a general perception among Cambodian rice (Oryza sativa) farmers that, after
harvesting, rice crop residues that are incorporated into the field benefit the growth of the
subsequent rice crop. However, the effect of this action upon weed establishment and growth
has not yet been considered. A series of pot and field trials were conducted to determine
whether such action could inhibit weed establishment and/or growth. The pot studies first
evaluated the response of the test plant (rice line ST-3) and three weed species, barnyardgrass
(Echinochloa crus-galli), small umbrella sedge (Cyperus difformis), and water primrose (Ludwigia
), to the residue of 16 rice lines and the field trials were later conducted to evaluate
the response of the same test plants to the residue of seven putatively allelopathic rice lines and
one non-allelopathic rice line.The residue of all the studied rice lines, depending on how long
they had been incorporated into the soil, reduced the establishment and growth of all three
weed species, as well as the rice crop. However, if the residue’s incorporation was delayed by
2 weeks or only a proportion of the residue was incorporated, the rice crop could withstand
the growth-inhibiting effect, while the inhibition of the establishment and growth of the three
weed species was retained.These responses of rice and the weeds to rice crop residues might
provide a basis for a weed management strategy, particularly in the resource-poor riceproduction
systems of Cambodia. © 2010 Weed Science Society of Japan.
Keyword Decomposition
Residual effect
Rice residue
Straw incorporation
Weed management
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Agriculture and Food Sciences
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
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Created: Sun, 03 Oct 2010, 10:00:28 EST