一、长班与短班相结合，多层次培训长班是指一年制单科结业班及绿色证书培训班，主要培训对象是具有一定文化水平和实践经验的乡村级技术员及重点承包大户。他们不但能学到并掌握较系统的实用技术，而且还能学到一定的专业理论知识，从而带动周围农户使某项实用技术得到及时推 First, the combination of long and short class, multi-level training Long class means one-year single-subject graduation class and green certificate training classes, the main training object is a certain level of culture and practical experience of rural-level technicians and key contractors. Not only can they learn and master more systematic and practical techniques, but they also can learn certain professional theoretical knowledge, which in turn drives the surrounding farmers to make a practical technology timely push