Conduct of modern science– 2016 • Díl 1
Бъдещите изследвания - 2020
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Abdufatayev Sh. bolgariya
Бъдещите изследвания - 2020 ★ Volume 10
94 bedrock planted in the garden . 3. 12hektars based on samples taken from the cotton area 0,234 0,188 0,174 0,177 0,168 0,178 As can be seen from Table , soil salinity is much higher in the surface area of the wheat fields studied above, 0.235% at an average of 0-60cm, 0.185%, in the garden area 0.193%, 0-60. It is found on that average 0.174% in cm and 0.234% on the surface area of cotton field, 0.216% at the depth of 0-60cm. It is assumed that salinity in th Earth’s surface in high due to the evaporation of groundwater. Thus negatively effects the growth and development of plants. There are various ways to deal with this, mainly by opening drainage holes in the fall season, introducing local fertilizers and organizing leaching work across areas. There is a possibility to reduce it by methods such as viscosity If the soil is heavily saline and coctains 0.01-0.02% chlorine at a depth of 1.0m, leaching is considered. For this purpose irrigation is carried out by means of irrigation, and the amount of water, which completely melts the salts and sends yhem to the bottom or drain. The amount of water required to wash excess salts above 1.0 is called the leaching standard. The arte of leaching depends largely on salinity, soil physical properties, groundwater levels and other factors. The rince-washing standart consists of two components: the amount of water required to maintain a low moisture capacity, the level of the active soil layer, and the removal of excess salts in the drain. The leaching rate may be 2000…. 15000m/s. It is advisable to give a large rinse aid and to accompany the rice. For the washing of saline at a depth of 1.0m can be used the formula V.R.Volobuev: , 10000 2 1 S S tg a M шюм (1) a - coefficient of soil mechanical composition and salinity 2 1 , S S - composition of initial and final salts in relation to soil weigt . |
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