LEACHING OF SOIL SALINITY BY DRIP IRRIGATION METHOD IN GREENHOUSE CONDITIONS

摘要

In the study, the leaching activity of saline soils was investigated at 4 different levels. The mean values of initial soil salinity were: T1 (2 dS/m), T2 (3 dS/m), T3 (3.8 dS/m) and T4 (6 dS/m). At the end of the research, it was aimed to decrease the soil salinity to 0.7 dS/m. Leaching water was applied by the drip irrigation method. In order to demonstrate an effective leach-salinity relationship, the leaching was not done in one application. Leaching water was applied in equal amounts every day for 15 times. In order to determine the soil salinity values at each leaching, soil samples were taken from three replicates of different depths. After the soil samples taken for salinity measurement became air-dried, filters were leached from the mud extracts prepared in the laboratory conditions by a routine method. During the leaching process, leaching water was applied in different amounts to each treatment. According to the results obtained, the salt accumulation in T1, T2, T3 and T4 was generally reduced to the target salinity level (0.7 dS/m) at the end of the research. At the end of production season, it could be suggested in the light of the obtained data that the salt accumulation, which occurs in the soil, could be effectively leached by the drip irrigation method.