作为保护性耕作的一部分——免耕播种技术在国外已有50多年的发展历史,是当今世界农业可持续发展的重要耕作方法。欧美等许多国家不仅有成熟的技术,而且还有先进的免耕播种机。在我国,该技术也得到了普遍认可,目前正处于示范推广阶段,然而我国生产的免耕播种机,在留茬 As part of conservation tillage - no-till sowing technology has a history of more than 50 years of development abroad and is an important farming method in the sustainable development of agriculture in the world today. Many countries, such as Europe and the United States, not only have sophisticated technologies, but also advanced no-till planters. In our country, the technology has also been generally recognized, is currently in the stage of demonstration and promotion, but our country no-tillage planter, stubble