低灌丛蓝莓商品田氮素的空间依赖性和独立性

IF 1.5 4区农林科学 Q4 SOIL SCIENCE

Canadian Journal of Soil Science Pub Date : 2022-09-15 DOI:10.1139/cjss-2022-0063

Anthony J. Pelletier, J. Lafond, M. Paré

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引用次数: 0

摘要

摘要野生低灌木蓝莓（越橘）的根状茎水平延伸，在进行施肥试验时产生空间依赖性。了解这种空间依赖性将有助于研究人员更好地设计实地研究。在这里，我们使用标记的氮（N）肥料（15N-（NH4）2SO4）来测量一个老的（56岁）和一个年轻的（15岁）商业田地的蓝莓茎之间的N迁移。利用顶端枯死期的叶片15N浓度来监测氮的获取。位点之间没有差异表明田间年龄对N易位没有影响。距施肥点≤0.75和≥1.75m的距离分别达到空间依赖性和独立性。

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Spatial dependency and independency of nitrogen in lowbush blueberry commercial fields

Abstract Rhizomes of wild lowbush blueberry (Vaccinium angustifolium Aiton) extend horizontally, creating spatial dependency when fertilization trials are performed. Knowing this spatial dependency would help researchers to better design field studies. Here, we used labelled nitrogen (N) fertilizer (15N-(NH4)2SO4) to measure N translocation among blueberry stems for one old (56year) and one younger (15year) commercial field. Leaf 15N concentrations at the tip-dieback stage were used to monitor N acquisition. No difference between sites suggests no field age effect on N translocation. Spatial dependency and independency were reached for distances of ≤0.75 and ≥1.75m from the fertilizer application point, respectively.

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来源期刊

Canadian Journal of Soil Science 农林科学-土壤科学

CiteScore

2.90

自引率

11.80%

发文量

审稿时长

6.0 months

期刊介绍： The Canadian Journal of Soil Science is an international peer-reviewed journal published in cooperation with the Canadian Society of Soil Science. The journal publishes original research on the use, management, structure and development of soils and draws from the disciplines of soil science, agrometeorology, ecology, agricultural engineering, environmental science, hydrology, forestry, geology, geography and climatology. Research is published in a number of topic sections including: agrometeorology; ecology, biological processes and plant interactions; composition and chemical processes; physical processes and interfaces; genesis, landscape processes and relationships; contamination and environmental stewardship; and management for agricultural, forestry and urban uses.