NDLI: Effect of an organic fertilizer on growth of blue-green alga Spirulina platensis

Content Provider	Springer Nature Link
Author	Ak, İlknur
Copyright Year	2011
Abstract	In this study, the influence of an agricultural liquid organic fertilizer on growth and biomass composition of Spirulina platensis Geitler was studied. In the first trial, five concentrations of organic fertilizer were arranged, e.g., 0.1, 0.25, 0.5, 1 and 2 ml/l, in which no other extra nutrients except bicarbonate were used. Maximum dry weight, chlorophyll a and specific growth rate were achieved in control group. In the second trial, initial fertilizer levels of the three groups were 0.1 ml/l and all groups contained sodium bicarbonate. One of the groups had 2.5 g/l NaNO3, while the other was supported with 0.1 ml/l fertilizer by two-day intervals to see the effect of nitrogen. In order to understand the effects of phosphate, 0.4 g K2HPO4 was added to the other group as well as 2.5 g NaNO3. Between the experimental groups, the highest chlorophyll a value was found in control group as 53.97 mg/l. The chlorophyll value at group II (37.65 mg/l) was lower than the control group. The maximum dry weight and crude protein recorded in control group were 1,330 mg/l and 60.17%, respectively, when compared with 1,256 mg/l and 59.92% in group II. No significant differences were observed in crude protein values of Spirulina grown in control and group II (P < 0.05). Consequently, it was seen that commercial liquid organic fertilizers may be replaced by Zarrouk’s medium except for nitrate, phosphate and bicarbonate in S. platensis cultures in order to decrease the production costs.
Starting Page	413
Ending Page	422
Page Count	10
File Format	PDF
ISSN	09676120
Journal	Aquaculture International
Volume Number	20
Issue Number	3
e-ISSN	1573143X
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-08-26
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Spirulina platensis Organic fertilizer Growth parameters Microalgae Biomass Zoology Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Agronomy and Crop Science

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