不同施肥量及种植密度对帚高粱农艺性状和穗帚产量的影响  

Effect of Different Fertilizer Application Rate and Planting Density on Agronomic Traits and Yield of Broom Sorghum

作　　者：潘映雪[1] 成慧娟[1] 王立新[1] 葛占宇[1] 隋虹杰[1] 于大伟 张姼[1] 刘畅[1] PAN Yingxue;CHENG Huijuan;WANG Lixin;GE Zhanyu;SUI Hongjie;YU Dawei;ZHANG Shi;LIU Chang(Chifeng Academy of Agricultural and Animal Husbandry Sciences,Chifeng 024031,China)

机构地区：[1]内蒙古赤峰市农牧科学研究院,内蒙古赤峰024031

出　　处：《东北农业科学》2021年第2期19-22,共4页Journal of Northeast Agricultural Sciences

基　　金：国家现代农业产业技术体系(CARS-06-13.5-B13);内蒙古自治区科技成果转化项目(CGZH2018085);赤峰市财政局项目【赤财指预(2020)1号】。

摘　　要：【目的】研究不同施肥量、不同播种密度对帚高粱农艺性状和穗帚产量的影响,为帚高粱规模化生产中合理施肥与合理播种密度的确定提供理论依据。【方法】2017~2018年以帚用高粱品种赤笤100为试验材料,采用两因素裂区设计,A(施肥量)因素为主处理,设有3个水平,即:A1为磷酸二铵150 kg/hm^(2)和硫酸钾75 kg/hm^(2),拔节期追施尿素300 kg/hm^(2);A2为缓释长效复合肥450 kg/hm^(2);A3为复合肥300 kg/hm^(2),拔节期追施尿素300 kg/hm^(2);B(播种密度)因素为副处理,设有4个水平,即:B1 6.75万株/hm^(2)、B2 9万株/hm^(2)、B3 11.25万株/hm^(2)、B4 13.5万株/hm^(2);3次重复。【结论】不同施肥量、不同种植密度的穂帚产量间均有显著差异;肥料密度互作不显著,最佳A处理和最佳B处理的组合A1B3为最优处理组合,穂帚产量达到3 972.87 kg/hm^(2)。【Objective】The effects of different fertilizer application and seeding density on the agronomic characters and yield of broom sorghum were studied in order to provide theoretical basis for the determination of reasonable fertilizer application and seeding density in the large-scale production of broom sorghum.【Method】In 2017-2018,Chitiao 100 was used as the experimental material,and the two-factor split zone design was used.A (application rate)was the main treatment factor,and three levels were set,namely:A1 was 150 kg/ha diammonium phosphate and 75kg/ha potassium sulfate,and 300 kg/ha urea was applied at the jointing stage.A2 is slow-release long-acting compound fertilizer 450 kg/ha;A3 was 300 kg/ha compound fertilizer and 300 kg/ha urea at jointing stage.B (seeding density) factor was secondary treatment with 4 levels.B1 67 500 plants/ha,B2 90 000 plants/ha,B3 112 500 plants/ha,B4 135 000 plants/ha,repeat 3 times.【Conclusion】The yield of tassels with different fertilizer rates and planting densities was significantly different.Fertilizer density interaction was not significant,and A1B3,the combination of the best treatment A and the best treatment B,was the optimal treatment combination,and the yield of broom sorghum reached 3 972.87 kg/ha.

关 键 词：帚用高粱 施肥量 密度 农艺性状 穗帚产量 

分 类 号：S514[农业科学—作物学]