Evaluation of some biological and organic soil amendments in improving growth of wheat plant under irrigation with saline water

Abstract

The present Preliminary experiments were conducted to examine the efficiency of different rates of some bio stimulate substances and local salinity adapted bacterial inoculants to facilitate wheat growth. Different doses of each biostimulate substances (s) were tested. Humic acid rates (0, 2, 3, 4 and 5 kg humic acid /fed), biofertilization treatment (most salinity adapted Azotobacter local isolates) and yeast extract soil treatment (0, 1, 2, 3 and 4 g / L) were examined for their effects on wheat plants growth. This experiment was conducted in the green house of agricultural experimental farm of department of soils and water, faculty of agricultural, south valley university-Qena governorate, Egypt. The growth parameters data showed that application of humic acid rates (4 and 5 kg humic acid/fed), biofertilization treatment (most salinity adapted Azotobacter local isolate A), yeast extract soil treatment (3 and 4 g / L) produced the highest significant parameters of the wheat plants; for the fresh and dry weight of shoot and root system. Increasing humic acid levels from 4 and 5 kg humic acid/fed did not recorded significant increases in all studied parameters. Also, increasing yeast extract levels as a soil treatment from (3 and 4 g / L) did not recorded significant increases in all studied parameters. The obtained results were clearly showed the promotion effects on growth parameters of wheat plants and the most efficient doses were selected for later use in the assessment experiment productivity of wheat plants.