油菜丸粒化直播种植技术关键参数优化与应用效果OA

As a crucial oilseed crop in northern China,rapeseed has a widespread cultivation base in Hulunbuir Region.In recent years,pelletized seed processing technology has been increasingly adopted in rapeseed production.This technique encapsulates fine rapeseed into larger spherical pellets,facilitating precision sowing.Based on the actual spring sowing conditions of rapeseed in Hulunbuir Region,this study optimizes key parameters for pelletized direct-seeding rapeseed,including sowing density,planting depth,sowing period,and mechanical sowing modes.Comparative trials were conducted between pelletized rapeseed direct-seeding and conventional planting methods.Results demonstrate that pelletized rapeseed outperforms conventional sowing in seedling uniformity,population structure rationality,and stress resistance.Additionally,it significantly reduces seed consumption and manual thinning efforts.This research provides a reference for promoting pelletized rapeseed direct-seeding technology in Hulunbuir and similar ecological regions in northern China.