农村中学生物课教学如何密切联系农业生产实际,是该学科教改的重要课题。我在教学中做了一些探索。如在讲“遗传与变异”一章时、结合遗传规律讲玉米杂交种的制种技术及种子提纯复壮技术,并让学生到制种田买习,摸索规律,改进技术,为我县大面积推广玉米杂交种创造了条件。这项试验坚持五年,提纯了伊川自马牙自交系,并参加了省级试验。学校试验基地还为当地繁育水稻良种2万多斤,及时更新了本地稻。结合“矿物质代谢和土壤酸碱度测定”教学,为合理使用化肥提供依 How to closely link the teaching of rural middle school biology to the actual production of agriculture is an important issue in the teaching reform of the discipline. I did some exploration in teaching. For example, when talking about the chapter “Heredity and Variation”, the hybrid seed breeding technology and seed purification and rejuvenation techniques were combined with genetic laws, and the students were allowed to purchase farmland to buy habits, explore laws, improve technology, and promote large areas for my county. Corn hybrids create the conditions. The test lasted for five years and purified Yichuan from the Machia Inbred Line and participated in provincial tests. The school experiment base also updated more than 20,000 kilograms of local rice varieties and updated the local rice. Combined with the teaching of “mineral metabolism and soil pH measurement”, it provides a basis for the rational use of chemical fertilizers.