Integrated Weed Management Systems

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Crop Protection, Diseases, Pests and Weeds".

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 5329

Special Issue Editors


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Guest Editor
USDA-ARS National Soil Dynamics Laboratory, 411 S. Donahue Dr., Auburn, AL 36832, USA

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Guest Editor
Connecticut Agricultural Experiment Station, Windsor Valley Laboratory, Windsor, CT, USA

Special Issue Information

Dear Colleagues,

The sustainability of weed management in production agriculture and specialty crop systems continues to be challenged by troublesome and herbicide-resistant weeds. In cropping systems ranging from cotton, corn, pulses and peanut, specialty crops and vineyards, weed management decisions are increasingly complex, while traditional solutions are unsustainable or provide unsatisfactory weed control. Because of numerous weed control challenges in various systems around the world, the overuse of chemical weed control and conventional tillage practices increasingly negatively impact within-farm and off-farm soil and water quality. A paradigm shift integrating conservation systems, herbicidal or alternative/organic weed control, and alternative cultural weed control needs to occur in order to meet the food, fiber, and product quantity, quality, and sustainability demands of today's consumers and markets. Out-of-the-box weed management solutions are the key to protecting both crop yield and production sustainability.

Dr. Andrew Price
Dr. Jatinder Aulakh
Guest Editors

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Keywords

  • sustainable agriculture
  • troublesome weed control
  • herbicide resistance management
  • conservation systems
  • alternative weed control
  • production agriculture
  • specialty crops

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Published Papers (1 paper)

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Research

13 pages, 1489 KiB  
Article
Evaluation of Mugwort (Artemisia vulgaris L.) Aqueous Extract as a Potential Bioherbicide to Control Amaranthus retroflexus L. in Maize
by Euro Pannacci, Marco Masi, Michela Farneselli and Francesco Tei
Agriculture 2020, 10(12), 642; https://doi.org/10.3390/agriculture10120642 - 17 Dec 2020
Cited by 17 | Viewed by 4776
Abstract
The allelopathic plant extracts can be applied as soil or foliar bioherbicides and are capable of suppressing germination and growth of several weeds, some of which are herbicide resistant. This study evaluated the allelopathic activity of the aqueous extract of aerial biomass of [...] Read more.
The allelopathic plant extracts can be applied as soil or foliar bioherbicides and are capable of suppressing germination and growth of several weeds, some of which are herbicide resistant. This study evaluated the allelopathic activity of the aqueous extract of aerial biomass of mugwort (Artemisia vulgaris L.) on seed germination and seedling growth of redroot pigweed (Amaranthus retroflexus L.) and maize (Zea mays L.), in order to be applied as a potential bioherbicide. The aqueous extract of mugwort was qualitatively examined for the presence of bioactive compounds and it was applied in a Petri dish and pot bioassays quantifying its effects on redroot pigweed and maize by non-linear regression analyses according the log-logistic model. The aqueous extract of mugwort showed the presence of several bioactive compounds with allelopathic activity, such as polysaccharides, organic acids, flavonoids and terpenoids. The aqueous extract of mugwort, at the concentrations from 7.5% to 10% w/v, were found to be the optimal concentration range since it is able to inhibit seed germination, seedling emergence and plant growth of redroot pigweed, without affecting seed germination and seedling emergence of maize, or rather, stimulating its radicle, mesocotyl and plant’s growth. EC90 values for the seed germination, radicle and hypocotyl length of redroot pigweed were in the order: 6.1% and 8.1%, 3.2% and 6.2%, 3.8% and 5.7% w/v of aqueous extract in the two repeated bioassays, respectively. Due to potential herbicidal activity against weeds and biostimulant action on the crops, this extract could be the ideal solution in an integrated weed management program, in order to suppress weeds, increasing competitive ability of crops. Full article
(This article belongs to the Special Issue Integrated Weed Management Systems)
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