金凤花切花养分吸收动态

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Ricardo Daniel Haussecker, Doris Irene Bischoff, D. Mata, Rodrigo Guzmán Verón, D. Morisigue
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引用次数: 0

摘要

摘要:金凤花(Gloriosa superba L.)是阿根廷新近引进的一种热带植物,作为切花栽培。了解作物的营养需求,在每个阶段提供最优的营养量,实现花的质量和良好的产量,降低生产成本和对环境的影响是非常重要的。这项工作的目的是确定在切花栽培中G. superba的营养吸收动态,以促进施肥计划的制定,以避免作物缺陷并促进可持续生产。进行了块茎成分分析,另一方面,在温室床上安装了一篇论文,在循环的七个时刻采集样本。测定茎、叶、花、块茎、根的新鲜物质和干物质以及空气器官的化学分析,得到吸收曲线。经证实,每种营养物质只有大约20%是由块茎提供的,这是作物初始阶段的外部贡献所必需的。干物质的生长和积累速率呈双s型,在茎伸长营养期和开花期达到最大值。营养物质的吸收顺序为:N>K>Mg>Ca>P>Fe>Mn>Zn>Cu。营养期宜施用富氮、磷、铁的氮肥,裸芽期宜均衡施肥,开花期宜施用富钙、钾、镁、锰、锌、铜。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Nutrient uptake dynamics of Gloriosa for cut flower
Abstract Gloriosa superba L. is a recently introduced tropical species in Argentina, cultivated as a cut flower. It is extremely important to know the nutritional demands of the crop to provide the optimal amounts of nutrients at each stage, achieving quality and good yield in flowers, reducing production costs and environmental impact. The objective of this work was to determine the dynamics of nutrient absorption in the cultivation of G. superba for cut flowers, to facilitate the creation of a fertilization program, in order to avoid crop deficiencies and contribute to sustainable production. Tuber composition analyzes were carried out and, on the other hand, an essay was installed in greenhouse beds, taking samples at seven moments of the cycle. Fresh matter and dry matter of stems, leaves, flowers, tubers, roots and chemical analysis of aerial organs were measured to obtain the absorption curve. It was verified that only around 20% of each nutrient is provided by the tuber, being necessary the external contribution from initial stages of the crop. The rate of growth and accumulation of dry matter was shown as a double sigmoid, with maximum peaks in the vegetative stage of stem elongation and beginning of flowering. Nutrient amounts were absorbed in the following order: N>K>Mg>Ca>P>Fe>Mn>Zn>Cu. Fertilization rich in N, P, and Fe is recommended in the vegetative stage, balanced during the visible shoot stage, and rich in Ca, K, Mg, Mn, Zn, and Cu during flowering.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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