Diagnosis of algae present in the concrete basins and their relationship to saturation food for some farm area Fezzan (south of Libya)

Abstract

This survey was carried out to diagnose algae located in basins and cement its relationship with food immission of irrigation water used to satisfy food-crop where sites selected four regions of the pheasant murzuk and traghan and zwila and tmassa, was taking 12 a sample of each location a repeat of the four visits over the full year (January November) 2017, as measured temperature and pH field in the location of the study and been chemical analysis of samples ground waters and recorded the concentration of mineral components and sodium and calcium, magnesium, potassium and iron phosphate and diagnosed samples of algae present in ground waters. The results showed that the total number of algae amounted to about 185 species 59 belong to the genus of the blue green algae Cyanophyta prevailed from the rest of the algae and accounted for 42.2%.it was assessing the quality of Wells ground waters agro-based, compared with international standards as the Food and Agriculture Organization International) were in the allowable limits internationally and zoul specifications are good for irrigation area but zwila characterized by an increase in magnesium component. The irrigation water in the concrete basin containing the algae observed an increase of potassium ccomponent quarterly in winter and summer. . The statistical analysis showed that there are moral differences at a level of probability (0.05> P) in the concentration of elements in the witness and between the autumn and winter and autumn.