Effect of organic, chemical solutions and solid media on the growth and yield of sweet peppers under the conditions of hydroponics

Abstract

An experiment was carried out for aquaculture in 2016 at the site of Zafaraniya / Research and Studies / Horticulture Department. The study included two nutrition groups, which included four nutrition medias, without a media symbol of M1, charcoal symbol of M2,     sand washed symbol M3 and  mixture of charcoal and sand symbol is M4. the second factor is the nutritional solutions and the first chemical solution, which is symbolized by S1, the second solution S2, which ensures the addition of the humic acid at a rate of 10 ml L^-1 the third solution is the addition of the humic acid at a rate of 10 ml L^-1 with the first nutrient solution and its symbol S3. to study the effect of organic and chemical solutions and the solid media in the growth and yield of pepper class under the conditions of aquaculture to identify the best media and a solution for the cultivation of sweet peppers under the hydroponics system. the results showed a significant increase in plant height and leaf area and the content of chlorophyll in the media of charcoal M2 with the mixture of chemical and organic nutritional solutions S3 there is a significant decrease in the dry weight ratio of the vegetative group to the dry weight of the root mass in the middle of the M2 charcoal and the mixture of chemical and organic  nutritional solutions S3. There was a significant increase in plant yield, total yield, and fruit content of ascorbic acid and beta-carotene in the middle of M2 and the mixture of chemical and organic nutrients. the treatment of the interference recorded the highest M2S3 values of 36.00 cm, 36.53 cm² and 396.0 mg100gm^-1 wet weight per plant height, leaf area and chlorophyll. the M2S2 treatment recorded a low value of the dry weight ratio of the vegetative to the dry weight of the root mass which was 0.64 recorded the same treatment M2S3 highest values of 1.30 kg^-1 and 19.77 tons ha^-1 and 133.0 mg 100^-1 ml juice and 1.57 mg 100^-1 ml juice for each plant and the total and ascorbic acid and beta-carotene Respectively.