Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 51405086 |
| 基于直插破膜成穴特性的玉米全膜双垄沟机械化播种方式作业机理及其产量效应研究 | |
| 戴飞 | |
| 主持机构 | 甘肃农业大学 |
| 开始日期 | 2015 |
| 结束日期 | 2017 |
| 资助经费 | 250000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | The furrow sowing with whole plastic-film mulching on double ridges has been widely used in the arid region of northwest China, because it can resist drought and increase production. So the mechanical sowing on film is an inevitable trend in farming. Under the theory of granular dynamics and soil dynamics and the technology of DEM, non-linear finite element method and high-speed photography, this project studies about direct insert precision hill-seeder with corn whole plastic-film mulching on double ridges. In order to reveal operation mechanism and effect mechanism with sowing methods of properties about direct insert and puncture film and cavitation under different parameters of corn whole plastic-film mulching on double ridges, the micromechanics constitutive models of different periods and different cycle film mulching seedbed is constructed, and probes the interrelationship between hill-seeder equipment and film mulching seedbed. Based on changes properties in the membrane and soils of film mulching seedbed, the project combines experiment and relationship models, to analyse the yield index under different parameters of the sowing methods properties of direct insert and puncture film and cavitation, and study the internal mechanism of sowing methods and its yield effect, which expounds the theory of yield increase of the properties sowing methods with whole plastic-film mulching on double ridges. Accordingly, it proposes appropriate planting models of the mechanical sowing methods of corn whole plastic-film mulching on double ridges in the arid region of northwest China. The results will undoubtedly provide theoretical basis for the integration of agricultural machinery equipments and the technology of corn furrow sowing with whole plastic-film mulching on double ridges, and effectively promote the development of the mechanical sowing on film technology of corn whole plastic-film mulching on double ridges in China. |
| 来源机构 | 甘肃农业大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346822 |
| 推荐引用方式 GB/T 7714 | 戴飞.基于直插破膜成穴特性的玉米全膜双垄沟机械化播种方式作业机理及其产量效应研究.2015. |
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