Effect of conservation tillage methods on soil physical and mechanical properties of wheat in the region Khandab state Markazi
Subject Areas :
Keywords: soil physical properties, Wheat, conservation tillage, Crop residue,
Abstract :
The problem of declining agricultural production in arid and semi-arid soil organic matter is low. The use of appropriate technologies like conservation tillage system as one of the practical methods in sustainable agriculture, can be slowed and sustainable increase in agricultural land destruction. This study aimed to investigate the effect of different systems KhakVrzy the physical and mechanical properties of soil in a randomized complete block design with four treatments and three replications. Tillage practices on plots of land in the central province Varkaroud area where there was corn crop residues, based on experimental treatments were performed. The treatments consisted of: (T1) using conventional tillage (moldboard plow and disk), (T2) using plow Chisel Ploughs Packer, (T3) using plow compound and (T4) direct seeding method. In this study, some physical and mechanical properties of soil, including soil bulk density, soil permeability, the mean diameter of clods weight, mechanical strength and the amount of residual soil, dry weight, seed weight and harvest index were measured. The obtained data using statistical software MSTAT-C were analyzed and the results showed that conservation tillage methods (Chisel Ploughs Pkr- combined plow and direct seeding) does not yield a significant reduction and margin performance three methods with conventional cultivation methods not significant at 5% level. The maximum amount of permeability is directly culture. The permeability of the use of Packer and plows Chisel Ploughs conventional culture method is more complex. As well as the lowest fuel consumption related to direct culture method and the highest fuel consumption is related to conventional tillage.