摘要
为了明确硼肥对甜荞植株构型及产量的影响,本研究以甜荞品种‘综甜2号’为试验材料,在花蕾期对其叶片喷施不同浓度的硼肥,于成熟期测定甜荞根际土壤养分的含量、根系形态、农艺性状及产量。结果表明:硼肥的施用能显著增加‘综甜2号’根际土壤铵态氮、速效钾含量,以及pH、根系表面积和根系体积,而且显著降低根际土壤有机质的含量。当硼肥用量为24 mg/L时,甜荞的产量最高达到734.30 kg/hm2,比对照增产12.47%。相关性分析表明:‘综甜2号’的株高与产量呈显著正相关关系。通过本次试验,探讨硼肥对甜荞植株构型和产量等的影响,研究结果对于指导甜荞的高产栽培等具有重要意义。
To study the effect of boron fertilizer on the plant configuration and yield of common buckwheat, the common buckwheat cultivar ’Zongtian 2’ was selected as experimental material, and different concentrations of boron in aqueous solution were sprayed in the budding stages. The nutrient contents and pH in rhizosphere soil, root morphology, agronomic traits and yield at maturity were measured. The results showed that the application of boron fertilizer significantly increased the contents of soil available nitrogen and potassium in rhizosphere. Meanwhile, pH, root surface area and root volume also significantly increased. However, the contents of soil orga-nic matter in rhizosphere significantly decreased by application of boron fertilizer. The yield of common buck-wheat reached as high as 734.30 kg/hm2, which was 12.47% higher than that of the control when the dosage of boron fertilizer was 24 mg/L. The correlation analysis showed that plant height and yield of ’Zongtian 2’ were positively cor-related.Through this experiment, the effects of boron fertilizer on plant structure and yield of common buckwheat were discussed. The results were of great significance for guiding the high-yield cultivation of common buckwheat.
作者
周良
黄小燕
黄凯丰
王炎
李振宙
吴兴慧
王雨
Zhou Liang;Huang Xiaoyan;Huang Kaifeng;Wang Yan;Li Zhenzhou;Wu Xinghui;Wang Yu(Technology Research Center of Buckwheat Industry,Guizhou Normal University,Guiyang,550001)
出处
《基因组学与应用生物学》
CAS
CSCD
北大核心
2021年第1期375-380,共6页
Genomics and Applied Biology
基金
国家自然科学基金(31560358)
国家重点基础研究发展计划(973计划)前期研究专项(2014CB160-312)
贵州省科技支撑计划(黔科合支撑[2018]2297号,[2019]2297号)
贵州省教育厅创新群体重大研究项目(黔教合KY字[2017]033,[2018]015)共同资助。
关键词
甜荞
硼肥
根系形态
根际土壤养分
农艺性状
Common buckwheat
Boron fertilizer
Root morphology
Rhizosphere soil nutrient
Agronomic traits
