机译:黑龙江省多年生杂草增多原因及多年生杂草防治技术综述
College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
College of Agriculture, Northeast Agricultural University, Harbin 150030, China;