The Effect of Water Content on the Penetration Resistance of Different Soils, and Regression Models

Authors : Cevdet ŞEKER

Pages : 467-472

View : 12 | Download : 4

Publication Date : 1999-05-01

Article Type : Research Paper

Abstract :The purposes of this study were to determine the relationships between soil water content and soil penetration resistance, and to develop regression models for comparing penetration resistance in different soils. A field study was conducted on four different soils in Entisol on the Konya plain. Significant relationships were found between soil water content and soil penetration resistance insert ignore into journalissuearticles values(r2= 0.77 to 0.99);. The results of regression analysis showed that the regression equation was Y=a+bX3, in which Y was penetration resistance insert ignore into journalissuearticles values(kPa); and X was soil water content insert ignore into journalissuearticles values(%);, a and b were constants changing with soil and different layers of the same soil. Correlation coefficients between penetration resistance calculated from regression equations and penetration resistance from field experiment measurements varied between 0.94 and 0.99.
Keywords : Turk J Agric For, 23, 1999, , 467 472 Turk J Agric For, vol 23, iss EK2