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Which nitrogen source is impact growth of algal? 


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The impact of different nitrogen sources on algal growth varies across the studies. In one study, the highest biomass yield was observed with nitrate-N as the nitrogen source . Another study found that urea resulted in the highest growth rate and carbohydrate and protein content in the algae . Yet another study showed that organic nitrogen sources like yeast extract and glycine led to higher biomass concentration compared to nitrate or ammonium-N . Additionally, the use of urea resulted in the highest lipid productivity in the microalga . Finally, a study on Nannochloropsis salina found that the urea treatment had the highest Maximum Sustainable Yield (MSY), while sodium nitrate and a mixture of nitrogen sources had the highest total biovolume . Therefore, the impact of nitrogen sources on algal growth depends on the specific species and conditions of the study.

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The paper states that all ammonium sources, including NH4NO3, NH4HCO3, NH4Cl, and CH3COONH4, showed an inhibition of cell growth in the marine microalga Tetraselmis sp.
The nitrogen source that had the greatest impact on algal growth in the study was urea.
The paper states that the highest biomass yield and nitrogen uptake rates were observed in cultures fed with nitrate-N, suggesting that nitrate-N is the nitrogen source that impacts algal growth the most.
The paper states that Plasma Activated Water (PAW) can be used as a good source of nitrogen for algae growth, indicating that PAW is an impactful nitrogen source for algal growth.

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