A Comparative Study on the Effect of Fertilizers on Growth of Algae in Pond Water Samples

Abstract

The effect of two different fertilizers [Urea(U), Diammonium Phosphate, DAP(D)] with varying concentrations on algal growth produced in pond H₂O samples from 3 different areas viz., 3^rd mile area (1), Seithekema area (2) and Medziphema area (3) under Nagaland state were investigated and also a comparative survey based on algal growths under the influence of fertilizers were analysed. Comparative survey was done using 4 different concentrations of both the fertilizers viz., Urea from 600 ppm (U1a-3a),540 ppm (U1b-3b),480ppm(U1c-3c),420ppm (U1d-3d) and DAP(PO₄^3-concentration) from 950ppm (D1a-3a),855ppm(D1b-3b),760ppm(D1c-3c),665ppm(D1d-3d) respectively. Results showed that Medziphema pond H₂O exhibiting pH around 6 with lowest hardness provided the most amount of algal growth, while 3^rd mile pond H₂O was found to favor algal growth in almost all samples containing varying concentrations of DAP.DAP was found to be the most favoured medium for algal growth and concentration containing 600ppm urea and 950ppm phosphate was found to be most suitable for algae.