摘要
为探究行距和种植密度对大豆农艺性状和产量的影响,文章以山宁29为试验材料,采用裂区设计,分析不同行距(30、40、50 cm)及种植密度(12万、15万、18万、21万、24万、27万、30万株/hm^(2))下山宁29农艺性状和产量的表现。结果表明,随着种植密度增加,山宁29株高及底荚高度呈波动上升趋势,有效分枝数显著降低,主茎节数变化不显著,产量构成因子(单株荚数、单株粒数及单株粒重)呈降低趋势,产量呈先升后降趋势。随着行距增加,山宁29株高、底荚高度、主茎节数、单株荚数、单株粒数、百粒重及产量均呈降低趋势,单株粒重呈先升后降趋势。综上,山宁29获得高产的最佳组合为行距30 cm、种植密度27万株/hm2。
To explore the row spacing and pla nting density on soybean agronomic characters and yield.This article used Shanning 29 as the experimental material and adopted a split-plot design to analyze the agronomic characters and yield performance of Shanning 29 under different row spacings(30,40,50 cm)and planting densities(120000,150000,180000,210000,240000,270000,300000 plants/ha).The results showed that as planting density increased,the plant height and bottom pod height of Shanning 29 exhibited a fluctuating upward trend,while the number of effective branches decreased significantly;the number of main stem nodes showed no notable change,and yield components-including the number of pods per plant,number of seeds per plant,and seed weight per plant-displayed a decreasing trend,with the overall yield first rising and then declining.In contrast,with an increase in row spacing,the plant height,bottom pod height,number of main stem nodes,number of pods per plant,number of seeds per plant,100-seed weight,and total yield of Shanning 29 all tended to decrease,whereas the seed weight per plant followed a pattern of first increasing and then decreasing.Collectively,these findings indicated that the optimal combination for Shanning 29 to achieve high-yield was a row spacing of 30 cm paired with a planting density of 270000 plants/ha.
作者
杨旭
赵云
周延争
黄新阳
李素真
周静
赵恩海
李继存
YANG Xu;ZHAO Yun;ZHOU Yanzheng;HUANG Xinyang;LI Suzhen;ZHOU Jing;ZHAO Enhai;LI Jicun(Jining Academy of Agricultural Sciences,Jining 272131,Shandong,China)
出处
《大豆科技》
2025年第6期27-32,共6页
Soybean Science & Technology
基金
国家现代农业产业技术体系项目(CARS-04)
国家重点研发计划项目(2023YFD1201304)
山东省现代农业大豆产业技术体系项目(SDAIT-28-1)。
关键词
山宁29
行距
种植密度
农艺性状
产量
Shanning 29
Row spacing
Planting density
Agronomic characters
Yield
