搜索结果: 1-7 共查到“工学 sowing”相关记录7条 . 查询时间(0.171 秒)
SPATIAL TEMPORAL SOWING PATTERN OF RAPESEED-MUSTARD CROP IN INDIA USING MULTI-DATE IRS AWIFS DATA
Rapeseed-Mustard Crop Crop Sowing Pattern Remote Sensing Multi-date IRS P6 AWiFS
2014/5/6
This paper highlights the results on spatial pattern of sowing of rapeseed/mustard in four major states in India using multidate Advanced Wide Field Sensor (AWiFS) data for 2010-11 crop season. Geo-re...
2BFS-8型水稻芽种播种施肥机设计与试验（Design of Rice Bud Seed Sowing and Fertilizer Machine）
水稻芽种 播种施肥机 直播 设计 试验
2010/12/29
设计了2BFS-8型水稻芽种播种施肥机，可一次完成平田、开沟（厢沟、畦沟、肥沟）、作畦、播种、施肥、压种、盖肥等工序。采用振动阀门的槽轮排种器，可实现水稻芽种定量精密分行条播，并防止伤芽和断条。采用常规槽轮排肥器与施肥开沟器，可实现常态化肥分行深施。由组合式开沟器形成的多沟并举，有利于水肥有效管理和光、温充分利用。室内台架和田间生产试验表明，该机主要技术性能指标均达到国家相关标准规定。
气吸滚筒式棉花精量穴播器排种性能试验（Sowing-performance of Air-suction Cylindrical Cotton Precision Dibbler）
棉种 穴播器 气吸滚筒 吸孔线速度
2010/12/28
针对气吸滚筒式精量穴播器作业过程中能耗大、排种性能不稳定等问题，以主要影响因素:取种盘吸孔线速度和充种负压为研究对象进行正交试验、回归分析，确定各因素对排种性能的影响规律及较优工作参数组合。结果表明：充种相对压力-4.5 kPa、取种盘吸孔线速度0.38 m/s时为较优作业参数组合，此条件下穴播器的单粒指数为98.67%、综合评价指数为99.00%、重播指数为0.67%、漏播指数为0.67%，满足...
Impact of soil compaction in sowing on development and crops of sugar beet
sowing sugar beet soil compaction combination of working operations
2014/2/26
Putting together work operations minimizes the number of machine passes across the plot, which helps to reduce negative soil compaction and to save fuels. However, the combination of working operation...
Testing of quality of sowing by pneumatic sowing machines
Technological devices and equipment Sowing machines Working speed
2010/2/8
Purpose: The purpose of the paper is to presents two sowing machines for interval sowing, differing in the mode of operation. We were interested in adequacy of sowing at different working speeds of th...
Testing of quality of sowing by pneumatic sowing machines
Technological devices and equipment Sowing machines Working speed
2010/2/8
Purpose: The purpose of the paper is to presents two sowing machines for interval sowing, differing in the mode of operation. We were interested in adequacy of sowing at different working speeds of th...
Analysis of quality of sowing by pneumatic sowing machines for sugar beet
Technological devices and equipment Sowing machines Working speed Inter - row distance
2010/2/22
Purpose: The paper presents two sowing machines for interval sowing, differing in the mode of operation. The pneumatic vacuum sowing machine OLT and the pneumatic pressure sowing machine Aeromat - Bec...