S.E., Mustow and A., Nathan and A.G., Tollervey and G., Sannarm (1996) Effect of planting pattern on shading and phytoplankton phyotosynthesis in Bangladesh rice fish farms. Naga The ICLARM Quarterly, Vol.19 (4). pp. 23-26. ISSN 0116-290X
Full text not available from this repository. (Request a copy)Abstract
In the present study, a Border Planting (BP) pattern recommended by the Bangladesh Agricultural Research Council was tested against Regular Planting (RP) to assess the effect, if any, on gross phytoplankton photosynthesis and shading. A Wide Planting (WP) pattern was also included in the trial, as an extreme case, to assess the level of photosynthesis that might be obtained if some of the rice yield was sacrificed. Three rice-planting treatments, each with four replicates, using the rice variety BR16, were undertaken: (1) RP, 26 cm between rows N to S and E to W; (2) BP, 20 cm between rows N to S and alternately 21 cm and 36 cm between rows E, to W; and (3) WP, 66 cm between rows N to S and E to W. BP showed no advantage compared to RP, possibly because the rice variety used was short and thus produced relatively little shading. WP did show a benefit for phytoplankton photosynthesis, but this may not generate an increase in fish yield sufficient to justify the negative impact of rice production.
| Item Type: | Articles |
|---|---|
| Keywords: | Phytoplankton, Rice Fish Culture, Fish, Farmers, Carp, Fingerlings, Value, Farms |
| Subjects: | Aquaculture |
| Depositing User: | Varsha V icsf |
| Date Deposited: | 25 May 2022 06:20 |
| Last Modified: | 25 May 2022 06:20 |
| URI: | http://icsfarchives.net/id/eprint/13310 |
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