Reducing the impact of muddy water on rice crop establishment
Sivapalan, Siva, Chan, K.Yin, & Addison, Nicholas (2004) Reducing the impact of muddy water on rice crop establishment. In Fischer, T., Turner, N., Angus, J., McIntyre, L., Robertson, M., Borrell, A., et al. (Eds.) 4th International Crop Science Congress, 26 September - 1 October 2004, Brisbane, Australia.
High water turbidity levels affect the successful establishment of rice seedlings. A range of anionic polyacrylamides (PAM) were tested for their effect on turbidity, infiltration, germination and crop growth. Different PAM products had varying ability to reduce water turbidity. PAM at the rate of 5 kg/ha combined with gypsum at the rate of 25 kg/ha reduced turbidity below threshold levels. PAM used alone or with gypsum did not have any significant effect on infiltration through the treated soils. On the other hand, these treatments had a positive effect on the germination of soybean seeds. Plant growth rate was also improved by these treatments.
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|Item Type:||Conference Paper|
|Keywords:||Polyacrylamides (PAM), turbidity, sodicity, gypsum, rice establishment|
|Subjects:||Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > SOIL SCIENCES (050300) > Soil Chemistry (excl. Carbon Sequestration Science) (050304)|
Australian and New Zealand Standard Research Classification > AGRICULTURAL AND VETERINARY SCIENCES (070000) > CROP AND PASTURE PRODUCTION (070300) > Agronomy (070302)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > SOIL SCIENCES (050300) > Soil Physics (050305)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
|Copyright Owner:||Copyright 2004 (please consult author)|
|Deposited On:||09 Dec 2005|
|Last Modified:||09 Jun 2010 22:28|
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