Wu xuefei
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The document summarizes an experiment to study the growth of two types of duckweed - Lemna perpusilla and Spirodela oligorrhiza - under different ratios of ammonium and nitrate as nitrogen sources. The experiment involves growing the duckweed in solutions with varying percentages of ammonium to nitrate over multiple time periods to observe their growth and ability to utilize different nitrogen forms. The expected result is that the experiment will demonstrate the duckweed's capacity to remove ammonium from water.
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Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
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- 4. Choose Duckweed Why? High removal rate of nitrogen Animal food Rich in protein Growing rapidly Harvest conveniently
- 7. Method
- 8. 0.05mmol/L N n NH4+ ： n NO3- 1 5:0 2 4:1 3 3:2 4 2:3 5 1:4 6 0:5 1.0mmol/L N n NH4+ ： n NO3- 7 5:0 8 4:1 9 3:2 10 2:3 11 1:4 12 0:5 5mmol/L N n NH4+ ： n NO3- 13 5:0 14 4:1 15 3:2 16 2:3 17 1:4 18 0:5
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