沈阳农业大学学报2025，Vol.56Issue(5)：26-35,10.DOI:10.3969/j.issn.1000-1700.2025.05.003
不同栽培方式和种植密度对大豆抗倒伏性能及产量的影响
Effects of Different Cultivation Methods and Planting Density on Lodging Resistance and Yield of Soybean
摘要
Abstract
[Objective]In order to explore the differences of lodging and yield of soybean between large ridge close planting,traditional ridge planting and different planting densities,the effects of different cultivation methods and planting densities on plant morphological indexes,mechanical properties of stems,lodging resistance and yield of soybean were studied.[Method]This experiment analyzed the relative chlorophyll content(SPAD),dry matter accumulation and grain traits,stem morphological characteristics,stem breaking resistance,lodging rate and yield of soybean upper,middle and lower parts under 65 cm conventional ridge(CK),130 cm large ridge inner row(C1),130 cm large ridge outer row(C2)and four planting densities(D1:2.5×105 plants·hm-2,D2:3.5×105 plants·hm-2,D3:4.5×105 plants·hm-2,D4:5.5×105 plants·hm-2).[Results]Under different cultivation methods,the SPAD of different parts of soybean showed:C2>CK>C1;the plant height,pod height,balance point and internode length showed:C1>C2>CK,the number of effective branches showed:CK>C2>C1,the number of main stem nodes showed that C1 and C2 were significantly higher than CK,stem diameter and dry matter accumulation of stems,leaves and pods in different parts showed:C2>CK>C1,and with the increase of planting density,plant height,bottom pod height,balance point and internode length increased gradually,stem diameter,effective branch number,main stem node number,dry matter accumulation in different parts and SPAD decreased gradually.The bending resistance and lodging rate of stem force were CK>C2>C1,and the effective pod number,grain number,grain weight and yield of different parts of soybean were C2>CK>C1,which decreased gradually with the increase of planting density.The 100-grain weight showed:C1>C2>CK,no response to density.[Conclusion]Regardless of high density or low density,the stem characteristics and lodging resistance of 130 cm large ridge were lower than those of 65 cm conventional ridge,but the lodging only occurred under the density of 5.5×105 plants·hm-2,and SPAD,dry matter accumulation,grain traits,yield components and yield were higher than those of 65 cm conventional ridge.关键词
大豆/茎秆抗折力/干物质积累/倒伏/产量Key words
soybean/stem breaking resistance/dry matter accumulation/lodging/production分类
农业科技引用本文复制引用
张娜,蔡丽君,刘婧琦,杨旭,郑伟,唐晓东,王智达,盖志佳..不同栽培方式和种植密度对大豆抗倒伏性能及产量的影响[J].沈阳农业大学学报,2025,56(5):26-35,10.基金项目
政府购买服务项目(072503011) （072503011）
黑龙江省省属科研院所科研业务费项目(CZKYF2023-1-B001),黑龙江省"揭榜挂帅"科技攻关项目(2021ZXJ05B03-05) （CZKYF2023-1-B001）
国家大豆产业技术体系项目(CARS-04-CES04) （CARS-04-CES04）
黑龙江省自然科学基金联合引导项目(LH2024D019) （LH2024D019）
