European Journal of Molecular & Clinical Medicine

Uzbekistan differs in hot climatic conditions from the Russian lands, where sunflower seeds are mainly grown. In connection with this, we studied the component compositions, the effect of moisture on the bulk density and other equally important indicators of sunflower seeds and products of its processing. It has been established that sunflower seeds cultivated in the hot climatic conditions of Uzbekistan have distinctive features in physical-mechanical and physical-chemical properties than in the Russian regions. The linear dimensions, component compositions, the effect of moisture on the bulk density of sunflower seeds have been determined. It has been established that in the hot climatic conditions of Uzbekistan, the cultivation of sunflower seeds is more efficient than in the Russian regions.

According to the results of the research, the average biological yield of controlled shade of Uzbek-2 variety was 30.1 ts / ha, Uzbek-6 variety - 32.8 ts / ha. The highest yields in the selected cultivar samples were observed in the samples of Competition-58/14 and Competition-64/15 and Competition 73/18 and amounted to 38.6-40.3-40.8 ts / ha

The following studies have shown the results of low, moderate, strong and very strong soil contamination as well as the change of soil morphological characteristics, the strains separation of oil-breaking bacteria and the development of recultivation technology. According to the results, the changes in soil morphological characteristics differ in contamination degree, and the morphological characteristics of very strong soil contamination (more 25 g/kg) have dramatically changed. The oil-breaking bacterial strains such as MFD-100 Pseudomonas stutzeri, MFD-200 Pseudomonas caryophyllis, MFD-5000 Bacillus subtilis are separated from oil-contaminated soils. Based on these strains, the three-stage recultivation technology has been developed, and as a result of the conducted recultivation, the soil cover is purified up to 81.8%. Soil purification rate is divided into the following efficiency indicators: 1 - soil purification rate 0-20%, 2 - soil purification rate 20-40%, 3 - soil purification rate 40-60%, 4 - soil purification rate 60-80% and 5 - soil purification rate 80-100%. After the soil recultivation, the productivity indicators such as nutrient and humus content as well as pH environment are improved.