水稻合理密植增产增效栽培技术研究进展

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中图分类号：S318；S511 文献标志码：A

Research progress on cultivation technique of rational dense planting for increasing rice yield and efficiency

FU Youqiang1，LI Xiaoyao12†， HUANG Zhanghui'， CHEN Xiaojuan²， ZHANG Yufen'， ZHUFeifei'， YE Qunhuan'， WANG Xinyu1， DUAN Songpo1， YIN Yuanhong'， LIANG Kaiming1， HE Xiuying1

I Rice Research Institute，Guangdong Academyof Agricultural Sciences/Guangdong Provincial Key Laboratoryof Science and

Technology for Rice/KeyLaboratoryof Genetics and Breeding ofHigh-Quality Rice in Southerm China （Co-construction by Ministry and Province）， Ministry of Agriculture and Rural Affairs， Guangzhou 510640， China; 2 College of Agriculture， Guangxi University， Nanning 53ooo4， China）

Abstract： Rational dense planting is a simple， direct， and effctive key agronomic measure to regulate the number of effective panicles and promote the average yield of rice on a large scale. This paper systematically elaborated on the importance and influencing factors of rational dense planting in rice， and pointed out effect of dense planting on the diseases， pests，and lodging. A cultivation technique of rational dense planting for increasing both yield and resource use efficiency of rice was proposed，featuring “dense planting and reducing nitrogen rate， water-saving and humidity control， multiple promotion with one spray， disease reduction and lodging resistance， as well as quality and eficiency improvement". The key points of this technique were summarized，and development directions were discussd.It aimed at providing a theoretical basis and technical guidance forincreasingriceaverage yield onalarge scale.

Keywords： Rice; Large-scale per-unit yield enhancement; Dense planting and reducing nitrogen; Water-saving and humidity control; Multiple promotion with one spray; Disease reduction and lodging resistance; Quality and efficiency improvement

水稻OryzasativaL.作为全球最重要的粮食作物之一，是全球近一半人口的主食[1。（剩余19970字）