油菜精量播种机气力式排种器设计与试验

Journal of Tianjin Agricultural University ›› 2016, Vol. 23 ›› Issue (1): 28-33.

• Researches and Scientific Notes • Previous Articles Next Articles

Design and Experiment of Pneumatic Precision Metering Device for Rapeseed

WU Xiao-wei¹, WU Wen-juan², ZHONG Zhi-tang^{1,Corresponding Author}, SHI Zhi-zhong¹, ZHAO Min¹

1. Agricultural Machinery Technology Extension Station of Jiangsu Province, Nanjing 210017, China;
2. Department of Automobile Engineering, Nanjing Communications Institute of Technology, Nanjing 211188, China

Received:2015-08-30 Online:2016-03-20 Published:2019-10-14

Abstract

Abstract: According to the requirements of agricultural and agronomic of rapeseed precision metering technology, this study proposed the design scheme of pneumatic precision metering device for rapeseed and analyzed the structure and working process of the metering device. Field experiment conditions as follows: take Qin You No.10 for the tested seed, seed germination about 85%, the design seeding rate is 0.63~4.41 kg/hm², take 1.8 kg/hm² as test seeding number, the tractor speed is 2.6 km/h. After tested, the sowing uniformity variation coefficient between the actual number of rape sprout in field and design seeding rate is 2.4%, this result indicate that the seeder have a good uniformity, and meet the seed quality standards.

Key words: rapeseed, pneumatic, metering device, uniformity, performance test

CLC Number:

S223.2

WU Xiao-wei, WU Wen-juan, ZHONG Zhi-tang, SHI Zhi-zhong, ZHAO Min. Design and Experiment of Pneumatic Precision Metering Device for Rapeseed[J]. Journal of Tianjin Agricultural University, 2016, 23(1): 28-33.

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Design and Experiment of Pneumatic Precision Metering Device for Rapeseed

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