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| Satti Hassan Yasir; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China; QingXi Liao; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China; Jiajia Yu; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China; Dali He; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China. |
| The objective of this study was to apply the precision metering on wheat seeding to overcome seed damage, seed loss and non-uniform distribution. Accordingly, a prototype of the pneumatic precision metering device for wheat was developed. The performance of the device, including quality of feed index (QFI), multiple index (MULI), miss index (MISI) and seed rate expressed in number of kernels per meter length (KPM), was investigated under laboratory conditions in Wuhan using a test stand with camera system. The results revealed that the rotating speed (RS) and negative pressure (NP) and their interactions had a significant effect on these variables. The maximum QFI (92.98%) was obtained at rotating speed of 19.0 rpm and negative pressures of 2.5 kPa... |
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Palavras-chave: Wheat; Experiments; Performance indices; Pneumatic precision metering device. |
| Ano: 2012 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2073 |
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