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试验采用原创研发的机插秧栽插密度田间测试装置和4行步进插秧机组成的试验系统装置,在泥脚深度23~30cm,水层深度3~11cm的冬水田里进行了田间机械化无载荷栽插试验、模拟满载荷栽插试验和实际插秧正交试验,研究了冬水田机插秧的秧苗株距和标定秧爪株距的关系,种植密度和理论密度的关系.研究结果表明:冬水田的泥脚深度、水层深度、秧苗株距对田间栽插密度的影响特别显著,插秧机的驱动轮、水稻的品种对田间栽插密度看不出影响.在泥脚深度23~30cm的冬水田,当水层深度大于7cm时,机插秧栽插密度随机性较大,种植密度差异高达35.1%,不能保证种植密度和水稻产量.
The experiment was carried out by using the field test device and 4-row step-by-step rice transplanter, which was originally developed by the research team. Field mechanized no-load in winter paddy fields with mud depth of 23 ~ 30cm and water depth of 3 ~ 11cm Planting experiment, simulated full-load planting experiment and orthogonal experiment of transplanted seedlings were conducted to study the relationship between seedling spacing of seedling transplanted in winter paddy field and standard seedling claw spacing, planting density and theoretical density.The results showed that: The effect of seedling depth, water depth and seedling spacing on transplanting density was particularly significant. The driving wheel and rice varieties of transplanter had no effect on transplanting density in the field. In winter paddy fields with mud depth of 23 ~ 30cm, When the water depth is more than 7cm, the transplanting density of machine transplanting seedling is more random, and the difference of planting density is as high as 35.1%, which can not guarantee planting density and rice yield.