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Effect of applying agricultural by-products as fertilizers on freshwater fish ponds quality [electronic resource].

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Abd-El-Hakim, N. F

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Language: English Summary language: Arabic Description: p.225-242Other title:

تقييم إستخدام المخلفات الزراعية كأسمدة على جودة المياه فى أحواض أسماك المياه العذبة [Added title page title]

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Egyptian journal of agricultural research, 2006 v. 84 (1) A, Special issue [electronic resource]:

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In: Egyptian Journal of Agricultural Research 2006.v.84(1)A,SPSummary: Six hundred m³ earthen ponds were divided into three groups, the first and second treatments received different combinations of compost (agricultural by-products) with chemical fertilizers (triple super phosphate + urea). The third treatment received chemical fertilizers only. Results revealed that partial substitution of chemical fertilizers with compost reduced nitrogenuous wastes and increased densities of both phyto and zooplankton. Moreover, water quality of the treated ponds demonstrated better characteristics.

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Six hundred m³ earthen ponds were divided into three groups, the first and second treatments received different combinations of compost (agricultural by-products) with chemical fertilizers (triple super phosphate + urea). The third treatment received chemical fertilizers only. Results revealed that partial substitution of chemical fertilizers with compost reduced nitrogenuous wastes and increased densities of both phyto and zooplankton. Moreover, water quality of the treated ponds demonstrated better characteristics.

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