Brassica Biofumigants Improve Onion (<i>Allium cepa</i>L.) and Celery (<i>Apium graveolens</i>) Production Systems

Wang, Guangyao; Ngouajio, Mathieu; Charles, Kevin S.

doi:10.1080/10440040903396516

Cited by 14 publications

(13 citation statements)

References 19 publications

(19 reference statements)

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“…Nitrogen accumulation differed between species only in 2011, when radish had greater N accumulation than brown mustard or hybrid turnip (Table 5). These biomass and N accumulation results fell in the upper end of the range reported in the literature (Stivers‐Young, 1998; Isse et al, 1999; Dean and Weil, 2009; Wang et al, 2010).…”

Section: Resultssupporting

confidence: 65%

“…Turnip, radish, rapeseed, and canola have long taproots that can scavenge N from deep in the soil, while mustards have shallower, more fibrous root systems. When planted by mid‐September, brassicas typically produce 3000 to 5000 kg ha −1 total biomass and take up 50 to 100 kg N ha −1 (Stivers‐Young, 1998; Isse et al, 1999; Dean and Weil, 2009; Wang et al, 2010).…”

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confidence: 99%

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Brassica Cover Crop Effects on Nitrogen Availability and Oat and Corn Yield

et al. 2016

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Cover crops are used to scavenge residual soil nitrate, with the goal of reducing N losses from agricultural fields and increasing subsequent N availability. Two experiments were conducted to determine fall‐planted brassica cover crops’ effect on N availability for rotational crops. The first evaluated five species—brown mustard [Brassica juncea (L.) Czern], hybrid turnip (Brassica rapa L. × B. napus L.), radish (Raphanus sativus L.), rapeseed (Brassica napus L.), and white mustard (Sinapis alba L.)—in rotation with oat (Avena sativa L.). The second evaluated radish in rotation with corn (Zea mays L.). End of season cover crop biomass averaged 1160 to 6170 kg ha−1 across experiments, locations, and years. Biomass did not differ by species. Nitrogen accumulation was generally greater than 70 kg ha−1 (range 31–136 kg ha−1). In the subsequent spring and summer, brassica cover crops reduced soil nitrate N levels relative to a no‐cover control by 0 to 132 kg ha−1. In Exp. 1, all brassicas reduced oat N accumulation by ≥77 kg ha−1 and oat biomass by ≥1255 kg ha−1 in June 2012, relative to the control. Mustards reduced oat grain yield by 505 kg ha−1 in 2011, while radish increased oat yield by ≥578 kg ha−1 in each year. In Exp. 2, radish did not affect corn V8 biomass N concentration, grain yield, or response to N fertilizer. Nitrogen taken up by brassica cover crops often is not available when the subsequent crop needs it.

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Section: Resultssupporting

confidence: 65%

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confidence: 99%

Brassica Cover Crop Effects on Nitrogen Availability and Oat and Corn Yield

et al. 2016

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“…Nitrogen accumulation of white mustard and rapeseed was intermediate. These biomass and N accumulation results fell in the upper end of the range reported in other studies (Stivers‐Young, 1998; Isse et al, 1999; Dean and Weil, 2009; Wang et al, 2010).…”

Section: Brassica Species Evaluatedsupporting

confidence: 72%

Brassica cover crop effects on nitrogen availability and oat and corn yield

et al. 2016

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Several brassica cover crops have recently gained popularity in the U.S. Midwest as nitrogen scavengers that are believed to reduce N losses and increase the amount of residual N available to the next cash crop. Field studies were conducted at three sites in Minnesota to determine the effect of fall‐planted brassica cover crops on (i) N availability to the subsequent year's crop of oat or corn, (ii) oat and corn grain yield, and (iii) corn yield response to applied N fertilizer. Earn 0.5 CEUs in Crop Management by reading this article and completing the quiz at http://www.certifiedcropadviser.org/certifications/self-study/755.

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“…Plant products have shown promising results for the control of soil-borne pathogens (Javaid and Saddique, 2012;Satish et al, 2009). Members of Brassicaceae family with sulphur content have emerged as an alternative to soil fumigant methyl bromide (Millner et al, 2004;Wang et al, 2009). Organic composts keep soil pathogens in check, so crop rotation used for the reduction of inoculum becomes avoidable.…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of composts and dried powdered biomass of botanicals for organic management of downy mildew of sorghum

Singh

Garampalli

2012

Archives Of Phytopathology And Plant Protection

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The biomass of 10 selected botanicals was evaluated as soil amendments, in the form of composts and dry powder biomass, to compare their potential to suppress downy mildew disease caused by oosporic inoculum of Perenosclerospora sorghi. Eight botanicals (Allium cepa, Lantana camara, Polyalthia longifolia, Hyptis suaveolens, Azadirachta indica, Nerium oleander Eucalyptus globulus and Tamarindus indica) proved effectively in the form of dry biomass powder at 4% (w/w) rate to control infection by oospores, while two (Croton sparsiflorus and Tagetes erecta) promoted it. In the form of composts (2% rate), the efficacy of botanicals was generally found reduced with the appearance of more disease than negative control in case of all botanicals except one (A. cepa). At the 4% compost rate, only four botanicals namely, A. cepa, P. longifolia, H. suaveolens and L. camara were found to suppress the disease. At higher amendment rates of 6, 8 and 10%, six botanicals suppressed the disease. Dry powders are not only superior in disease suppression but confer additional benefits like reduced bulk, increased shelf life, consistent composition and results.

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Brassica Biofumigants Improve Onion (Allium cepaL.) and Celery (Apium graveolens) Production Systems

Cited by 14 publications

References 19 publications

Brassica Cover Crop Effects on Nitrogen Availability and Oat and Corn Yield

Brassica Cover Crop Effects on Nitrogen Availability and Oat and Corn Yield

Brassica cover crop effects on nitrogen availability and oat and corn yield

Comparative evaluation of composts and dried powdered biomass of botanicals for organic management of downy mildew of sorghum

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