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| 正压式气流排种器排种效果试验 | |
| 引用本文： | 李中华,王德成,刘贵林,杨明韶,王振华.正压式气流排种器排种效果试验[J].农业工程学报,2009,25(1):89-93. |
| 作者姓名： | 李中华 王德成 刘贵林 杨明韶 王振华 |
| 作者单位： | 1. 中国农业大学工学院,北京,100083 2. 中国农业机械化科学研究院呼和浩特分院,呼和浩特,010010 3. 内蒙占农业大学机电上程学院,呼和浩特,010010 |
| 基金项目： | “十一五”国家科技支撑计划重大项目课题（2006BAD28B08） |
| 摘 要： | 为了探讨正压式气流排种器的排种均匀性，论文对具有代表性的苜蓿种子、披碱草种子和玉米种子进行了排种试验。结果表明，该排种器排种均匀性和通用性较好，对豆科牧草种子（苜蓿）、禾本科牧草种子（披碱草）和大田作物种子（玉米）均可较均匀的排种，且都达到了行业标准要求。风速和喂入速度对种子的各行排量一致性变异系数和总排量稳定性变异系数V 有显著影响，相关系数都高达0.97左右。最后，通过优化试验方案，得出各种种子的最佳工作条件：披碱草种子，喂入速度为470～500 g/min，风速为27～30 m/s；苜蓿种子，喂入速度为505～525 g/min，对应的风速为30～33 m/s；玉米种子，喂入速度为5200～5500 g/min，风速为32～35 m/s。 |
| 关 键 词： | 气流式 排种器 牧草种子 试验 |
| 收稿时间： | 2008/6/12 0:00:00 |
| 修稿时间： | 2008/10/15 0:00:00 |
Experimental study on sowing seeds by air-stream metering mechanism |
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| Li Zhonghu,Wang Decheng,Liu Guilin,Yang Mingshao and Wang Zhenhua.Experimental study on sowing seeds by air-stream metering mechanism[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(1):89-93. | |
| Authors: | Li Zhonghu Wang Decheng Liu Guilin Yang Mingshao and Wang Zhenhua |
| Institution: | 1.College of Engineering;China Agricultural University;Beijing 100083;China;2.Huhhot Branch of Chinese Academy of Agricultural Mechanization Sciences;Huhhot 010010;3.College of Engineering;Inner Mongolia Agricultural University;China |
| Abstract: | In order to discuss the performance of the metering mechanism and its action on different seeds,seeds of Medicago sativa,Elymus dahuricus and corn were chosen as testing seeds for their typical plants in China.The experiments for sowing Medicago stiva seeds,Elymus dahuricus seeds and corn seeds were accomplished.It was found that the performance of the metering mechanism met the requirements.The results also indicated that the input air velocity and seed feeding rate had influenced v and V observably.The co... |
| Keywords: | air-stream metering mechanism forage seeds experiment |
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