The Subsoiler Applicability Evaluation And Experimental Research

With the changes in agricultural production and agricultural technology development model, conservation tillage has become very important, deep pine is one of conservation tillage methods, soil subsoiling technology to improve soil structure and water conservation plays a very important effect, through mechanical subsoiling soil, soil physical properties can be improved, deepened the plow layer, increase soil water storage capacity and root penetration depth, creating a soil structure suitable for crop growth, improve soil water storage water retention capacity, soil water, fertilizer, gas, heat a reasonable adjustment arrangement ultimately serve the purpose of increasing crop yields. For this stage of subsoiling machinery research and development is still in the fuzzy stage, performed separately for each region, the applicability of subsoiling equipment can not meet the needs of the majority of farmers, but also caused huge losses for farmers, in order to solve these problems, the need for subsoiling applicability of research equipment. Applicability analysis of this topic focused on semi-arid areas of western Liaoning (study area in Fuxin) performed subsoiling equipment through the study of soil Subsoiler applicability evaluation methods to develop a soil subsoiling equipment suitability evaluation methods, by suitability test verified. In this paper, firstly for the semi-arid areas of western Liaoning field research in Fuxin area-based analysis of local geography and climate, soil conditions, including drought Fuxin region is very serious, and local subsoiling equipment used for statistics, analyzed its own structure, principle, performance, etc., at the same time the main performance test subsoiling models 1SQ-250 full-subsoiler, summed up the main external factors that impact the quality of their work, and the final results of soil moisture large extent on the degree of soil compactness subsoiling effect.Through research on relevant information, and according to preliminary performance tests conducted, proposed four factors that affect the suitability of soil subsoiling equipment:climate, previous crop types, soil moisture and soil firmness; determined with reference to the evaluation indicators in principle, the proposed soil subsoiling equipment fitness five evaluation:subsoiling depth, the depth of subsoiling stability, pulverizer, soil and soil disturbance bulkiness coefficient; summarized the determination of each evaluation index; through use of expert methods and AHP to determine the weight of each evaluation index weights; and then by using the efficacy coefficient function conducted a comprehensive analysis of each index, and 1SQ-250 subsoiler comprehensive soil suitability evaluation, for example, on the evaluation indicators and measurement methods were verified.