THE INFLUENCE OF SOY FERTILIZER STANDARDS ON PRODUCTIVITY IN MEDIUM SALINITY SOILS

In this article, the effect of optimized fertilizer rates on productivity during the cultivation of different soybean varieties as a repeated crop under the conditions of medium salinity soils is highlighted. Today, improving the fertilizer application system during the cultivation of promising soybean varieties is one of the main tasks of agriculture. In the experiment, we applied phosphorus fertilizer in four different rates: 50 kg in the first option, 75 kg in the second option. and in the third option 100 kg and in the fourth option 150 kg (clean) standards are used. Also, indicators such as germination, growth and productivity of soybeans, depending on the amount of fertilizer application, were also studied.