Experimental Method of Straw Returning Combined Land Preparation Machine
The experiment aims to test the overall adaptability of the straw returning combined with the land preparation machine.The experimental method is to measure the tillage depth,deep loosening depth,qualified rate of straw(root)crushing,and uniformity of straw(root)crushing and mixing according to technical indicators.The measurement results can be compared with the experimental standards to determine whether the overall operation quality of the machine is qualified.The experiment showed that the qualified rate of straw crushing after the combined operation of straw returning to the field and land preparation machine was greater than 85%,and the length of straw crushing was within 75mm.Other indicators met the requirements of the "Quality of Straw Returning Machine Operation"(NY/T500-2002).The machinery performs well in straw crushing and land preparation,meeting the soil environment requirements of most agri-cultural planting.Specific test results and control test standards can evaluate the design of the entire machine and pro-pose improvement plans to better serve agricultural production.