摘要
为了提高小区播种机存种装置对作物种子的分散均匀性,该文以小区播种机存种装置为研究对象,采用正交旋转组合试验设计方法,研究与存种装置相关的试验因素—存种装置直径d、存种装置提升高度h、前进速度v对黑芝麻、白菜、油菜、小麦、大豆种子分散均匀性的影响。通过DPS7.05数据处理系统获得了存种装置直径、存种装置提升高度、前进速度对小区播种机存种装置分散种子均匀性的影响回归方程,获得了试验因素的影响大小次序,并通过分析确定了5种作物对存种装置结构及工作环境的最佳参数,在各自最佳工作条件下,黑芝麻、白菜、油菜、小麦、大豆种子分散均匀性变异系数分别为2.2121%、1.0388%、0.9198%、2.6328%、2.7188%。在权重相同的条件下,5种种子整体最佳试验参数为:存种装置直径0.0634m,存种装置提升高度0.013m,前进速度1.4524m/s。在该条件下,黑芝麻、白菜、油菜、小麦、大豆种子分散均匀性变异系数分别为2.4741%,1.3008%,1.1818%,2.6415%,2.9808%。该研究对改进存种装置对作物种子的适应性,提高小区播种均匀性有一定的实用价值。
In order to improve the seed scattered uniformity to storing device of plot seeder,it was taken as the research object in the paper.Influence of the three test factors （diameter of storing device （d）,lifting height of storing device （h）,motion velocity （v）） on the scattered uniformity about black sesame seed,Chinese cabbage seed,rape seed,wheat seed and soybean seed were analyzed by the orthogonal rotational combination experimental design.With DPS7.05 Data Processing System the regression equations of seed scattered uniformity on the three test factors were established.The effect order of three factors on each seed was obtained by the regression equations.Optimum parameters about structure and operational environment were established by analysis and under the respective optimum parameters the CV of the scattered uniformity about black sesame seed,Chinese cabbage seed,rape seed,wheat seed and soybean seed were 2.2121%,1.0388%,0.9198%,2.6328%,2.7188%,respectively.Under the same weight,the integral optimum parameters were as follows：diameter of storing device 0.0634 m,lifting height of storing device 0.013 m,motion velocity 1.4524 m/s and the best CV of the scattered uniformity about black sesame seed,Chinese cabbage seed,rape seed,wheat seed and soybean seed were 2.4741%,1.3008%,1.1818%,2.6415%,2.9808%,respectively.The study has certain practical value for improving the adaptability of storing device to seed and uniformity of sowing in the plot.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2010年第9期101-108,共8页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家"948"项目基金(2009-Z22)
关键词
农业机械
试验
优化
小区播种机
存种装置
分散均匀性
agicultural machinery
experiments
optimizaion
plot seeder
storing device
scattered uniformity
