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前言 在精密播种机上,输种系统是影响植株合格率的重要因素。随着精密播种技术的发展,精密播种机排种器的均匀度已达90％以上,[1]提高输种均匀性更成为急待解决的问题。计算表明:当株距为5厘米,用每小时5公里的速度播种时,如果一粒种子延误0.036秒,就会被后一粒种子赶上。用理论分析和实验研究的方法寻求提高输种均匀性的途径,已越来越引起人们的重视。输种均
Preface In the precision seeder, the input system is an important factor affecting the plant pass rate. With the development of precision sowing technology, the precision of precision seed sowing machine has reached more than 90%. [1] It is an urgent issue to improve the evenness of sowing. Calculations show that when a plant is sown 5 cm per hour at a distance of 5 cm and a seed is delayed 0.036 s, it is caught by the next seed. With theoretical analysis and experimental research to seek ways to improve the uniformity of input has attracted more and more attention. All kinds of inputs