摘要
为实现超级稻穴盘育苗,设计了一种气吸振动盘式精密播种装置。选择超级稻常优3号,进行五因素四水平正交试验,研究了相对压力、吸种盘吸孔孔径、振动种盘振动频率、振幅、吸种距离对播种性能指标的影响,构建了其数学模型。采用遗传算法对播种性能指标进行多目标优化,获得最佳工作参数组合:相对压力3.68 k Pa,吸孔孔径1.84 mm,振动频率10.90 Hz,振幅4.09 mm,吸种距离3.92 mm,试验结果与预测值相接近。播种育苗试验表明,采用该播种装置播种可满足超级稻种植的要求。
In order to realize the nursing seedlings of super rice, a type of vacuum-vibrating tray precision seeding device was designed. The super rice Changyou 3 was selected, the effects of relative pressure, diameter of suction hole, vibration frequency of plate, amplitude, the suction distance on seeding performance was analyzed with a five-factors and four-level orthogonal experiment. A mathematical model was established between seeding device parameters and seeding performance index, which provided the basis for the parameters selection of the precision seeder device in seeding process. The multi-objective optimization genetic algorithm was made and the optimal parameters were determined as： vacuum negative pressure value of 3.68 kPa, diameter of suction hole of 1.84 mm, vibration frequency of 10.90 Hz, amplitude of 4.09 mm, the suction distance of 3.92 mm which were verified by experiments. Through seeding test of the long type super rice, the results were consistent with theoretical analysis, which showed that the seeding device had a good adaptability to different varieties of super rice, which were suitable for different varieties of super rice seeding. Through sowing and seedling test, the seeding device could meet requirements of super rice planting seedling.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2015年第1期73-78,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(51375214)
江苏省高校自然科学研究重大资助项目(11KJA460002)
江苏高校优势学科建设工程资助项目(苏财教(2011)8号)
巢湖学院博士科研启动资助项目
巢湖学院校级科研资助项目
关键词
超级稻
穴盘育苗
气吸振动
吸盘式播种装置
多目标优化
试验
Super rice Nursing seedling Vacuum vibration Tray seeder device Multi-objective optimization Experiment
