Abstract:

This study was conducted in 2018 and 2019, and it investigated the effects of different soil tillage and sowing methods T1: Conventional (plough+goble discharrow+harrow+sowing machine), T2: Reduced (combined rototiller-chisel-roller toothed harrow+sowing machine), T3: Reduced (chisel+goble discharrow+harrow+sowing machine), T4: Direct sowing on stubble ridge, T5: Direct sowing on some physical properties of soil and plant emergence parameters in second-product soybean cultivation, following the wheat harvest. As a result of the study, the lowest soil bulk density value was obtained in the application of the traditional tillage and sowing method (T1) at 0-10 and 10-20 cm soil depth in the first and second years, while the highest soil bulk density value was determined in the application of the direct sowing (T5). Soil penetration resistance values showed a positive correlation with soil bulk density values in both years. Different tillage and sowing methods led to changes in the mean germination time; between 4.87-5.14 days in the first year and 4.23-5.08 days in the second year. In addition, the highest seedling emergence percentage for both years was determined as 91.18%-94.95% in the application of T4 tillage and sowing methods, respectively. The results of this study indicated that direct sowing on the stubble ridge (T4) method, which increases seedling emergence percentage, can be recommended to producers in the cultivation of soybean grown as the second crop.

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