作物学报2026，Vol.52Issue(2)：631-643,13.DOI:10.3724/SP.J.1006.2026.41094
山东北部沿海平原区小麦-玉米周年两吨粮超高产技术创建
Development of ultra-high-yield technology for a wheat-maize double cropping system achieving a 2-ton annual grain yield per mu in the coastal plain of Northern Shandong peninsula,China
摘要
Abstract
The development of ultra-high-yield technology for a wheat-maize double cropping system targeting an annual grain yield of 2 tons per mu in the coastal plain of northern Shandong Peninsula represents a significant agricultural initiative led by the Crop Chemical Control Center of China Agricultural University and Laizhou Jinhai Seed Industry in Laizhou,Shandong province.Through the careful selection of superior varieties,optimized planting densities,and integrated water and fertilizer management,high grain yields and efficient cultivation of both wheat and maize have been achieved.In the 2023 growing season,the combined yield of wheat and maize reached 31,323.90 kg hm-2(2,088.26 kg mu-1).Notably,the winter wheat crop—evaluated by experts organized by the Ministry of Agriculture and Rural Affairs—set a new regional yield record for the Huang-Huai-Hai Plain,with an actual yield of 13,213.35 kg hm-2(880.89 kg mu-1).The variety Yannong 1212 exhibited a spike density of 692.0 spikes m-2,an average of 40.1 grains per spike,a thousand-grain weight of 52.55 g,single-plant yield of 4.74 g,harvest index of 0.56,and water use efficiency(WUE)of 3.24 kg m-3.For summer maize,the variety Zhongjinyu 2513 achieved a spike density of 9.1 spikes m-2,an average of 584.7 grains per spike,a thousand-grain weight of 379.31 g,single-plant yield of 206.25 g,harvest index of 0.58,and WUE of 2.86 kg m-3,with an actual yield of 18,110.55 kg hm-2(1,207.37 kg mu-1).In a 2024 repeated trial,the total yield remained high at 30,997.00 kg hm-2(2065.13 kg mu-1).This study summarizes the key management practices and main agronomic indicators contributing to high-yield wheat-maize double cropping in northern Shandong,offering a valuable reference for similar production systems in the region.关键词
小麦-玉米周年复种/超高产技术创建/山东北部沿海平原区/良种选择/水肥一体化Key words
wheat-maize annual double cropping/development of ultra-high-yield technology/Northern Shandong peninsula/selective superior varieties/water and fertilizer integration引用本文复制引用
林子晴,张明才,李召虎,周于毅,段留生,钟醒宇,刘樊,任子澳,马瑞,邓秀峰,王东伟,刘少鹏,陈康..山东北部沿海平原区小麦-玉米周年两吨粮超高产技术创建[J].作物学报,2026,52(2):631-643,13.基金项目
本研究由农业科技重大项目资助.This study was supported by the Agricultural Science and Technology Major Project. （）
