EFFECT OF IRRIGATION WATER TREATMENT AND NATURAL ZEOLITE ON SOME COMPONENTS CORN PLANT (ZEA MAYS L.) UNDER LEVELS OF PHOSPHATE FERTILIZATION IN CALCAREOUS SOILS

Two experiments were done, the first is laboratory to study the efficiency of chimney dust in water treatment and the second to know the effect of the levels of natural zeolite by using two soils of different textures and the effect of phosphate fertilizer levels on dry weight and the amount of nitrogen absorbed and their interaction in yellow maize plant Zea mays L. planted in the wooden canopy of the Department of Soil Sciences and Water Resources, College of Agriculture, University of Basra, during the agricultural season 2018, according to the Completely Randomized Design within a factorial experiment of three treatments and three replications. The results of the study showed that treating the studied water W1, W2, and W3 by chimney dust led to a decrease in water salinity with a decrease of (71.80, 70.03, 57.89)% compared with the non-treated treatments, which was positively reflected in the increase of the dry weight of the vegetative system with increased rates of 47.98% and 58.15% in sandy loam soils and 39.73% and 44.59% in loam clay soils for treatments Z1 and Z2 respectively, compared with treatment Z0, and the addition of phosphate fertilizers P1 and P2 had no significant effect on the average of the dry weight and in both turbines. There was a significant increase in the rate of the absorbed amount of nitrogen at rates (21.61, 24.02, 29.27 and 33.74)% for factors Z1 and Z2 compared with treatment Z0 for both soils, respectively with increase rates of (6.10, 12.20, 6.72 and 10.05)% for both soils, respectively. It was noted that the best level of zeolite and phosphate fertilizer is Z2 and P2.