论文部分内容阅读
作者于1976年开始,对天津一带的套种玉米、夏玉米和春玉米的生态状况、生育规律及骨干技术进行了较全面的研究,约经15年的生产实践,反馈印证,逐渐探索出玉米前重施肥技术,即重施基肥和苗期重施化肥。改变了玉米前控后促,重管中后
Since 1976, the author has made a comprehensive study on the ecological status, birth pattern and backbone technology of intercropping maize, summer maize and spring maize in Tianjin. After about 15 years of production practice and feedback confirmation, Re-fertilization technology, that is, heavy basal fertilizer and seedling re-fertilization. Change the pre-control corn after the promotion, heavy tube in the post