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1949年以来 ,辽宁省水稻生产取得了突破性进展 ,总的趋势是面积显著增加 ,单产成倍增长 ,总产量不断提高。农田水利工程建设、塑料薄膜及新农药的使用、肥料用量的增加等是水稻增产的基础。杂交粳稻辽优1号和株型理想的直立穗品种辽粳5号等的培育成功 ,是水稻产量提高的关键。旱育苗、稀播稀插、节水灌溉、平衡施肥、化学除草、综合防治病虫害等栽培措施的应用 ,是水稻增产的保证。同时 ,在籼粳稻杂交、水稻杂种优势利用、理想株型育种、高产优质育种和旱育苗、稀植栽培、节水灌溉、配方施肥、模式化栽培技术等理论研究方面也取得许多重要成果。
Since 1949, a breakthrough has been made in paddy production in Liaoning Province. The general trend is that the area has been significantly increased, yields have doubled, and the total output has been continuously raised. The construction of farmland water conservancy projects, the use of plastic film and new pesticides, and the increase of the amount of fertilizers are the basis for increasing yield of rice. The successful cultivation of Liaoyou 1, a Japonica hybrid rice and the erect panicle cultivar Liaojing 5, which is an ideal plant type, is the key to the improvement of rice yield. The application of cultivation measures such as dry nursery, thinning and thinning, water-saving irrigation, balanced fertilization, chemical weeding and comprehensive prevention and control of pests and diseases is a guarantee of increasing yield of rice. At the same time, many important achievements have also been made in such theoretical research as the hybridization between indica and japonica, the utilization of heterosis in rice, ideal plant type breeding, high yield and high quality breeding and drought nursery, sparse planting, water saving irrigation, formula fertilization and modeled cultivation techniques.