辽宁北部中早熟稻区,主要包括铁岭县、开原市等地,是辽宁省重要水稻产区之一。当地土壤板结、地力瘠薄,低温冷害频发,生产上存在盲目引种、氮肥用量过大等问题,这都限制了水稻产量的增长。据此建立了以培肥地力、安全成熟为核心的水稻优质稳产栽培模式。 The middle-early-maturing rice area in northern Liaoning, mainly including Tieling County and Kaiyuan City, is one of the important rice producing areas in Liaoning Province. Local soil compaction, infertility infertility, low temperature chilling injury, blind introduction of production, excessive nitrogen fertilizer and other issues, which have limited the growth of rice yield. Based on this, a high-quality and stable-yield cultivation model of rice was established with fertility and safety as the core.