玉米秸秆育苗种坨成型工艺试验研究
TS653.5; 秸秆育苗种坨是以玉米秸秆作为主要成分,添加牛粪、无机络合物、聚丙烯酸钠、硫酸亚铁等辅料研磨后作为育苗基质,将种子和基质一次性压制成型,也可将种子种植于种坨种植孔内,在满足种子发芽生长的温度和湿度条件下,育苗后直接移栽的新型块状育苗技术.种坨育苗不仅能够定养定肥、省去配肥加药环节,而且具有直接移栽不伤根、无需缓苗、省去装钵取苗环节等优势,具有良好的经济效益、生态效益.该研究在物料特性分析基础上,分别以物料含水率、压缩比以及压缩速度为试验因素,以抗破坏强度、吸水率、膨胀率为试验指标进行试验研究,分析各因素对育苗种坨成型质量及性能的影响规律.试验结果表明,含水率较优范围18％～22...
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| Published in | 农业工程学报 no. 5; pp. 241 - 248 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
沈阳农业大学工程学院,沈阳,110866
01.03.2020
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.11975/j.issn.1002-6819.2020.05.028 |
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| Abstract | TS653.5; 秸秆育苗种坨是以玉米秸秆作为主要成分,添加牛粪、无机络合物、聚丙烯酸钠、硫酸亚铁等辅料研磨后作为育苗基质,将种子和基质一次性压制成型,也可将种子种植于种坨种植孔内,在满足种子发芽生长的温度和湿度条件下,育苗后直接移栽的新型块状育苗技术.种坨育苗不仅能够定养定肥、省去配肥加药环节,而且具有直接移栽不伤根、无需缓苗、省去装钵取苗环节等优势,具有良好的经济效益、生态效益.该研究在物料特性分析基础上,分别以物料含水率、压缩比以及压缩速度为试验因素,以抗破坏强度、吸水率、膨胀率为试验指标进行试验研究,分析各因素对育苗种坨成型质量及性能的影响规律.试验结果表明,含水率较优范围18％～22％;压缩比较优范围2.75～3.50;压缩速度较优范围90～130 mm/min.进行三元二次正交旋转组合试验设计,建立含水率、压缩比、压缩速度与吸水率、抗破坏强度、膨胀率等参数之间的数学模型,得到各指标优化参数组合为:含水率为22％,压缩比为2.9,压缩速度为90 mm/min,此时育苗种坨抗破坏强度较强,吸水性能好,膨胀率低.验证试验结果表明:种坨成型质量及性能良好,满足育苗要求,为秸秆育苗种坨成型工艺、成型机械的设计与优化提供了理论依据. |
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| AbstractList | TS653.5; 秸秆育苗种坨是以玉米秸秆作为主要成分,添加牛粪、无机络合物、聚丙烯酸钠、硫酸亚铁等辅料研磨后作为育苗基质,将种子和基质一次性压制成型,也可将种子种植于种坨种植孔内,在满足种子发芽生长的温度和湿度条件下,育苗后直接移栽的新型块状育苗技术.种坨育苗不仅能够定养定肥、省去配肥加药环节,而且具有直接移栽不伤根、无需缓苗、省去装钵取苗环节等优势,具有良好的经济效益、生态效益.该研究在物料特性分析基础上,分别以物料含水率、压缩比以及压缩速度为试验因素,以抗破坏强度、吸水率、膨胀率为试验指标进行试验研究,分析各因素对育苗种坨成型质量及性能的影响规律.试验结果表明,含水率较优范围18％～22％;压缩比较优范围2.75～3.50;压缩速度较优范围90～130 mm/min.进行三元二次正交旋转组合试验设计,建立含水率、压缩比、压缩速度与吸水率、抗破坏强度、膨胀率等参数之间的数学模型,得到各指标优化参数组合为:含水率为22％,压缩比为2.9,压缩速度为90 mm/min,此时育苗种坨抗破坏强度较强,吸水性能好,膨胀率低.验证试验结果表明:种坨成型质量及性能良好,满足育苗要求,为秸秆育苗种坨成型工艺、成型机械的设计与优化提供了理论依据. |
| Author | 白雪卫 周艳吉 刘德军 程乾 宫元娟 刘坤 |
| AuthorAffiliation | 沈阳农业大学工程学院,沈阳,110866 |
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| Author_FL | Zhou Yanji Liu Kun Cheng Qian Bai Xuewei Liu Dejun Gong Yuanjuan |
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| Author_xml | – sequence: 1 fullname: 刘德军 – sequence: 2 fullname: 周艳吉 – sequence: 3 fullname: 刘坤 – sequence: 4 fullname: 程乾 – sequence: 5 fullname: 白雪卫 – sequence: 6 fullname: 宫元娟 |
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