المجلة الدولية للعلوم والتقنية

An experiment was conducted during the 2021/2022 season with a completely randomized design in three replicates to determine the extent of the effect of Egyptian clover residues in the soil on the germination and growth of the wheat crop. It was Sowing in pots with a radius of 10 cm and a height of 25 cm, with different planting densities of a Egyptian clover (0.5, 1, 1.5, 2) In addition to the treatment of the control, the clover was harvested a month after planting, its residues were stirred into the soil, and the wheat crop was then planted. The results were as follows: • There are highly significant differences in the effect of different concentrations of Egyptian clover plant residues on the germination and growth of the wheat crop. The planting density (0.5 g) of Egyptian clover gave the highest germination rate, reaching (63%), and superior to the control treatment. This was followed by a decrease in the germination rate with increasing Egyptian clover densities. Where the concentration of 2 gm recorded the lowest germination rate, which decreased to (50%). It was observed that the higher the concentration of clover plant residues in the soil, the shorter the length of the seedling, shoot and root. It decreased from (17.0, 16.33, 31.0) when the clover Sowing density was 0.5 g to (9.7, 12.33, 12.33) when the Egyptian clover density increased to 2 g. • The decrease in growth indicators represented in plant length and leaf area was subsequently reflected in the fresh and dry weight of the entire plant. When the concentration of clover plant residues was increased by increasing the plant density rate, the clover density of 0.5 gave the highest averages for spike length (4.00 cm) and the length of awns 13.33 (cm). • The density of 0.5 g clover gave the highest averages for the number of spikelets, grains per spike, and grain weight, superior to both the control treatment and the highest concentrations of clover residues remaining in the soil. • The results of the study showed that clover plant residues previously present in the soil caused deterioration in the germination rate and a reduction in the wheat crop in terms of growth and productivity................ Keywords: ........alfalfa residues - wheat crop - agricultural cycle - growth characteristics.