Design and experiment of mixed fertilizer applicator of solid organic fertilizer and compound fertilizer
To address issue of low mechanization in greenhouse fertilization operations,a specialized spreader was designed for dispens-ing a mix of solid organic fertilizer and compound fertilizer.Effectiveness of this machine was validated through a series of tests,includ-ing evaluations of fertilizer discharge stability,uniformity,breakage rate,and practical field assessments.Results showed that vari-ation coefficient for stability of organic fertilizer and compound fertilizer discharge was 4.12%and 0.28%,respectively.Variation coef-ficient for uniformity of fertilizer application for organic fertilizer and compound fertilizer was 2.61%and 3.61%,respectively.There was no fertilizer free section for organic fertilizer and compound fertilizer in fertilization uniformity test section,and breakage rate of fer-tilizer applicator was 0%,which met national standard requirements.Average ratio of organic fertilizer soil mixture in field experiments was 10.22%,average ratio of organic fertilizer particles in upper layer was 13.94%,and average ratio of organic fertilizer particles in lower layer was 6.50%,indicating that soil fertilizer mixing effect coula be achieved after rotary tillage.
万方数据
维普
