Primary and secondary productivity in selected brackishwater ponds
1985
Anon.
The traditional method of fertilization (initial basal application of chicken dung at 2 tons/ha plus a bi-weekly application of 16-20-0 at 50 kg/ha and 45-0-0 at kg/ha) gave the highest values for chlorophyll and gross photosynthesis. MASA fertilizer (processed from idustrial and agricultural wastes) gave promising results at a rate of 1 ton/ha. Gross photosynthesis was consistently lower in plexiglass samples than in BOD bottles. This was due to the inclusion of benthic photosynthesis in plexiglass samplers. Gross photosynthesis and chlorophyll values showed remarkably good agreement throughout the study. Gross photosynthesis will be used as an indicator of milkfish production in the succeeding runs of the study
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