新疆农业科学2017，Vol.54Issue(6)：998-1007,10.DOI:10.6048/j.issn.1001-4330.2017.06.003
氮素形态对不同钾效率基因型棉花钾素吸收利用及根系形态的影响
Effects of Nitrogen Forms for Different Cotton Genotypes on the Potassium Absorption and Utilization and Root Morphology
摘要
Abstract
[Objective] The project aims to study the effects of potassium uptake for nitrogen forms on different types of potassium efficiency genotype cotton under hydroponic condition.[Method] The study was conducted in the hope of finding out the effects of nitrate nitrogen and ammonium nitrogen on the cotton dry matter accumulation and potassium content,potassium accumulation,utilization index and root morphology under the condition of supplying sufficient potassium and inadequate potassium separately by choosing potassium efficiency genotype cotton of Liaomian 18,Jimian 958 and Xinmian 99B.[Result] The dry weight accumulation of root and stem,plant potassium content,accumulation and root morphology was increased by supplying sufficient potassium;Compared with nitrate nitrogen,ammonium nitrogen decreased dry matter accumulation,decreased potassium content and potassium accumulation,and hindered root development.Compared with Xinmian 99B,Liaoning cotton 18 and Jimian 958 in ammonium nitrogen treatment,dry matter accumulation,potassium content,potassium accumulation decreased less.[Conclusion] Compared with nitrate nitrogen,ammonium nitrogen is not conducive to cotton growth and potassium absorption,and potassium inefficient cotton varieties are more sensitive to ammonium nitrogen.关键词
棉花/钾/氮素形态/钾素吸收和利用/根系发育Key words
cotton/potassium/nitrogen forms/absorption and utilization of potassium/root morphology分类
农业科技引用本文复制引用
刘爱忠,董合林,裴亮只,郑苍松,李鹏程,孙淼,冯魁,陈传信,石书兵..氮素形态对不同钾效率基因型棉花钾素吸收利用及根系形态的影响[J].新疆农业科学,2017,54(6):998-1007,10.基金项目
National Cotton Industry Technology System Project "The Research Direction of High-Yield Cultivation "(GARS-18-17) （GARS-18-17）
Autonomous Region Key Technology R&D Program " Introduction and Application of Cotton High Yield Liquid Fertilizer Technology" (2016ZX08010005) （2016ZX08010005）
Ministry of Agriculture Industry Special" Dry land double farming area Farm land Fertilize and Rational Farming System" (201503121)国家棉花产业技术体系项目“高产栽培岗位”(CARS-18-17) （201503121）
新疆维吾尔自治区科技支疆项目“棉花高产液态肥技术的引进与成果应用”(2016ZX08010005) （2016ZX08010005）
农业部行业专项“旱地两熟区耕地培肥与合理农作制度”(201503121) （201503121）
