Studies were conducted in Libya to reduce the gap in oils and animal feed by domesticating soybeans and introducing them into the crop mix in Libya. It was found that the Giza 21 variety is the most suitable for the Green Mountain region. The experiment was carried out in the Quba region located at (32 40’ 79) At an altitude of 600 meters above sea level, the experiment was carried out in pots (3 kg) in external conditions in the dome. The results showed that the best fertilization rate was 45 kg/ha, as we find that the plant height and the number of branches on the plant increased with the increase in the fertilization rate, and the biological yield is considered the most important characteristics studied in the plant, as its maximum limit was 13.13 tons/ha. This was achieved by increasing the fertilizer rate to 45 kg/ha. We also found that seed weight increased with the same fertilizer rate, as did the percentage of protein and oil. The importance of this study was to determine the optimal phosphate fertilizer rates and their impact on the quality of crop components................ Keywords:..............soybean plant,phosphate fertilization, crop quality, conditions in the Al-Qubba area, AL-Jabal AL-Akhdar.