The Effects Of Different Sowing Methods on Some Soil Parameters in Wheat-Second Crop Soybean Rotation..pdf
Creators: name: Bilgili, Mehmet Emin
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 300210
subject: Sustainable agricultural development

description: This research was carried out to determine Conference contributionhe effects of different sowing methods on some physical properties and soil compaction of wheat + second crop soybean rotation in Çukurova conditions in 2015-2016 production period. As sowing methods in both crops; "Flat sowing", "ridge sowing" and "wide ridge sowing" methods were examined. In order to determine some physical properties (moisture-volume weight and porosity) of the experimental soil, undisturbed soil samples were taken at two different depths (0-15 and 15-30 cm) after both crop harvests. After the wheat harvest, in terms of soil moisture, the "year" factor at 0-15 cm depth was statistically significant at the 5% significance level, while it was not significant at 15-30 cm depth. Soil moisture at a depth of 0-15 cm in the first year was 19.77% in group (b), while in the second year it was in group 22.74% (a). After the second crop soybean harvest, the "year" factor at 0-15 cm depth and different sowing methods at 15-30 cm depth were found to be different interms of soil moisture. After the first year sConference contributionoybean harvest, soil moisture at 0-15 cm depth was 22.39% (a) and 21.22% (b) in the second year. In terms of sowing methods after soybean harvest, the highest soil moisture; While it was 29.82% (a) in the ridge sowing method, the lowest soil moisture was found in the "wide ridge sowing" method with 24.80%. In terms of volume weight, the interaction of “year”, “sowing method” and “sowing method*year” at a depth of 15-30 cm after wheat harvest was found to be statistically significant. Volume weight values at 15-30 cm depth; it was found to be 1.43 g/cm3 (b) in the first year and 1.57 g/cm3 (a) in the second year. The highest volume weightvalue; It was determined as 1.53 g/cm3 (a) in the "flat sowing" method. In the interaction of “sowing method*year”,the highest volume weight value; It was obtained from the second year of the “ridge sowing” method with 1.64 g/cm3.The “year” factor was found to be significant at a depth of 15-30 cm after the second crop soybean harvest. First yearvolume weight value; 1.51 g/cm3 (b); In the second year, this value was determined as 1.54 g/cm3 (a). While thereare statistically significant differences in both depths after wheat harvest in terms of porosity; The interaction of “year”,“sowing method” and “sowing method*year” after soybean harvest was not found significant. Porosity value at 0-15cm depth after the first year wheat harvest; While it was 51.16%, this value was determined as 48.68% in the second year. At a depth of 15-30 cm, it was found to be 46.84% in the first year and 41.53% in the second year. As a result; As the soil depth increased, the moisture and bulk weight values of the soil increased, while the porosity values decreased. A digital penetrometer device was used to measure soil compaction in different sowing methods. The penetration resistance of the soil was measured at 5 cm intervals at a depth of 0-30 cm. After the wheat harvest, the penetration resistances were below 2 MPa along 0-30 cm in the "ridge sowing" methods, while the penetration values were above the 2 MPa threshold in the "flat sowing" after 22 cm depth. After the second crop soybean harvest, soil compaction values were found to be above 2 MPa after 18, 26 and 28 cm depth, respectively, in "flat sowing", "wide ridge sowing" and "ridge sowing" methods.Keywords: Adana, rotation, bulk weight, porosity, penetration resistance