种植密度及施氮方法对‘吉杂383’产量的影响  

Effects of Planting Density and Nitrogen Application Methods on the Yield of’Jiza383’

作　　者：马一铭 胡月 窦忠玉[1] 张英惠[1] 冯旭滨 曲祥春[1] 闫鸿雁[1] Ma Yiming;Hu Yue;Dou Zhongyu;Zhang Yinghui;Feng Xuebin;Qu Xiangchun;Yan Hongyan(Institute of Crop Resources,Jilin Academy of Agricultural Sciences,Gongzhuling,136100;Jilin Jinong High Tech Development Co.,Ltd.,Gongzhuling,136100;Baicheng Seed Management Station,Baicheng,1370007)

机构地区：[1]吉林省农业科学院作物资源研究所,公主岭136100 [2]吉林吉农高新发展股份有限公司,公主岭136100 [3]白城市种子管理站,白城1370007

出　　处：《分子植物育种》2022年第22期7637-7643,共7页Molecular Plant Breeding

基　　金：吉林省科学技术厅中青年科技创新卓越人才(团队)项目(20210509018RQ);吉林省重点科技研发项目(2018-0201068NY)共同资助。

摘　　要：本试验以早熟矮秆机收高粱新品种‘吉杂383’为材料,在大田试验条件下进行‘吉杂383’高产栽培技术研究。试验设置不同种植密度(12,13,14,15,16万株/hm^(2))、不同施肥方式(底肥加氮肥,缓释长效复合肥),以期筛选‘吉杂383’最适种植密度及最佳施肥方式。结果表明:‘吉杂383’的产量,随着密度的增加呈先上升后下降趋势。底肥加氮肥施肥方式下,在一定范围内,产量随着氮肥的增加而增加;缓释长效复合肥方式下,产量随着缓释长效复合肥的增加呈先上升后下降趋势。本试验中,‘吉杂383’最适种植密度为15万株/hm^(2),最佳施肥方式为复合肥+氮肥20 kg/666.7 m^(2)和缓释长效复合肥40 kg/666.7 m^(2)。This experiment was co nducted to study the high yield cultivation technology of early maturing and short mechanized sorghum cultivar’Jiza383’under field test conditions.The experiment set different planting densities(120000,130000,140000,150000,160000 plants/hm^(2))and different fertilization methods(base fertilizer plus nitrogen fertilizer,slow release long-term compound fertilizer),in order to screen the optimal planting density and fertilization method of’Jiza383’.The results showed that the yield of’Jiza383’increased first and then decreased with the increase of density.In a certain range,the yield increased with the increase of nitrogen fertilizer.With the increase of sustained release long-acting compound fertilizer,the yield increased first and then decreased.In this experiment,the optimal planting density of’Jiza383’was 150000 plants/hm^(2),and the optimal fertilization method was compound fertilizer+nitrogen fertilizer 20 kg/666.7 m^(2)and slow-release long-acting compound fertilizer 40 kg/666.7 m^(2).

关 键 词：种植密度 氮肥 产量 吉杂383 

分 类 号：S514[农业科学—作物学]