D. Mamoun and E. A. Babiker, Effect of Tillage and Method of Sowing on Wheat Yield in Irrigated of Rahad, Sudan. J. Soil & Tillage Research, vol.42, pp.127-132, 1997.

Z. B. Barut, Determination of the Optimum Working Parameters of a precision Vacuum Seeder, 1996.

Q. Wang, H. Chen, H. Li, W. Li, X. Wang et al., Controlled traffic farming with no tillage for improved fallow water storage and crop yield on the, Chinese Loess Plateau J. Soil & Tillage Research, vol.104, pp.192-197, 2009.

Y. Gao, Ground wheel Slide of no Tillage Seeding-machine, p.12, 2001.

B. Zhang and Q. Yu, The simulation study of sliding For wheeled tractor based on PD control, Journal of Beijing Agricultural University, vol.8, issue.2, 1995.

X. Li and . Zhao, Design of Incremental Photoelectrical Encoder Interface Based on Single-chip, pp.10-11, 2006.

Y. Cui and ?. A. , Design Instance of Measurement System for Rotary Speed Based on Photoelectric Encoder, Management and Development, vol.10, pp.74-75, 2007.

A. H. Taner, Virtual instrumentation:a solution to the problem of design complexity in intelligent, pp.165-171, 1996.