新斯科舍省有机谷物种植系统中绿肥和杂草对选定土壤健康指标的影响

IF 1 4区农林科学 Q3 AGRONOMY Canadian Journal of Plant Science Pub Date : 2023-07-04 DOI:10.1139/cjps-2023-0004

M. McNeil, D. Lynch, M. Z. Alam, A. Mills, Carolyn B. Marshall

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引用次数: 0

摘要

轮作2年后绿肥残留对土壤健康的影响尚不充分。杂草生物量对土壤微生物群落的影响及其相互作用知之甚少。2016-2017年，加拿大科尔切斯特县进行了一项有机粮食研究试验，包括在小麦和大豆之前先种植或不种植绿肥作物的2年或3年轮作。这两年都进行了秋季土壤取样。轮作大豆阶段按杂草或非杂草进行管理。杂草土壤显著提高了土壤呼吸活性和真菌微生物量。绿肥处理对土壤健康指标影响不显著。

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Impact of green manure and weeds on selected soil health indicators in an organic grain cropping system in Nova Scotia

The green manure residual effect on soil health 2 years later in crop rotation is understudied. Little is known about weed biomass impact on soil microbial communities or their interactions. A Colchester County, NS, Canada, organic grain research trial during 2016–2017 comprised 2 or 3-year rotations with or without green manure crop prior to wheat, and then soybeans. Fall soil sampling was conducted both years. The soybean phase of the crop rotation was managed as weedy or non-weedy. Weedy soil showed significantly increased soil respiratory activity and fungal microbial biomass. Green manure treatments did not significantly influence soil health indicators.

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来源期刊

Canadian Journal of Plant Science 生物-农艺学

CiteScore

1.90

自引率

8.30%

发文量

审稿时长

1 months

期刊介绍： Published since 1957, the Canadian Journal of Plant Science is a bimonthly journal that contains new research on all aspects of plant science relevant to continental climate agriculture, including plant production and management (grain, forage, industrial, and alternative crops), horticulture (fruit, vegetable, ornamental, greenhouse, and alternative crops), and pest management (entomology, plant pathology, and weed science). Cross-disciplinary research in the application of technology, plant breeding, genetics, physiology, biotechnology, microbiology, soil management, economics, meteorology, post-harvest biology, and plant production systems is also published. Research that makes a significant contribution to the advancement of knowledge of crop, horticulture, and weed sciences (e.g., drought or stress resistance), but not directly applicable to the environmental regions of Canadian agriculture, may also be considered. The Journal also publishes reviews, letters to the editor, the abstracts of technical papers presented at the meetings of the sponsoring societies, and occasionally conference proceedings.