Effect of Incorporation of Hairy Vetch and Rye Grown as Cover Crops on Weed Suppression Related with Phenolics and Nitrogen Contents of Soil

Sung, Jwakyung; Jung, Jung-Ah; Lee, Byoung-Mo; Lee, Sang‐Min; Lee, Yong-Hwan; Choi, Du-Hoi; Kim, Tae‐Wan; Song, Beom-Heon

doi:10.1626/pps.13.80

Cited by 6 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Allelopathic compounds can be released into the soil by a variety of mechanisms that include decomposition of residues, root exudation, and volatilization (Weston 2005). They can be broadly classified into plant phenolics and terpenoids, which show great chemical diversity and are involved in a number of metabolic and ecological processes (Sung et al 2010). These naturally produced secondary compounds can have chemical structures as complex as synthetic herbicides; they can also have the same wide range of selectivity and control for weeds (Westra 2010).…”

Section: Allelopathymentioning

confidence: 99%

Living Mulch as a Tool to Control Weeds in Agroecosystems: A Review

Mohammadi¹

2012

Weed Control

View full text Add to dashboard Cite

Section: Allelopathymentioning

confidence: 99%

Living Mulch as a Tool to Control Weeds in Agroecosystems: A Review

Mohammadi¹

2012

Weed Control

View full text Add to dashboard Cite

“…2007) are used in temperate zones. Weed suppression effects also have been reported for some cover crops (Creamer & Baldwin 2000; Sung et al . 2010).…”

mentioning

confidence: 53%

“…(Blackshaw et al 2001), and Trifolium pretense L. (Jiang et al 2007) are used in temperate zones. Weed suppression effects also have been reported for some cover crops (Creamer & Baldwin 2000;Sung et al 2010). Competition between weeds and cover crops for water, nutrients, and sunlight is regarded as the main cause of the suppression effect.…”

mentioning

confidence: 94%

Contribution of militarine and dactylorhin A to the plant growth‐inhibitory activity of a weed‐suppressing orchid, Bletilla striata

Sakuno

Kamo²,

Takemura

et al. 2010

Weed Biology and Management

View full text Add to dashboard Cite

The methanol extract of Bletilla striata, an ornamental orchid in eastern Asia, exhibited plant growth-inhibitory activity. It was purified by continuous chromatography, based on the inhibitory activity against the growth of lettuce seedlings, resulting in two glycosidic compounds, militarine and dactylorhin A.The EC50 values of militarine and dactylorhin A against the radicle elongation of the lettuce seedlings were 0.28 and 0.88 mmol L -1 , respectively.The amount of militarine and dactylorhin A in the methanol extract of the aerial part of B. striata was calculated to be 5.6 and 7.5 mg g -1 fresh weight, respectively. The inhibitory activity of militarine and its content in the methanol extract revealed that the plant growth-inhibitory activity of the extract of B. striata was mainly related to militarine. The inhibitory activity of militarine against the growth of Italian ryegrass and timothy were of the same level as that of lettuce.

show abstract

“…For example, Trinsoutrot et al ( 2000 ) found that rapeseed incorporation resulted in net N immobilization for c . 2 weeks, and Sung et al ( 2010 ) reported little N immobilization from rye, but substantial net N mineralization from hairy vetch. This implies that N 2 O emissions during the initial stage of decomposition will depend on soil

availability for several days, as reported by Petersen et al ( 1996 ) in a study of cattle manure hotspots.…”

Section: Discussionmentioning

confidence: 98%

Catch Crop Residues Stimulate N2O Emissions During Spring, Without Affecting the Genetic Potential for Nitrite and N2O Reduction

et al. 2018

View full text Add to dashboard Cite

Agricultural soils are a significant source of anthropogenic nitrous oxide (N2O) emissions, because of fertilizer application and decomposition of crop residues. We studied interactions between nitrogen (N) amendments and soil conditions in a 2-year field experiment with or without catch crop incorporation before seeding of spring barley, and with or without application of N in the form of digested liquid manure or mineral N fertilizer. Weather conditions, soil inorganic N dynamics, and N2O emissions were monitored during spring, and soil samples were analyzed for abundances of nitrite reduction (nirK and nirS) and N2O reduction genes (nosZ clade I and II), and structure of nitrite- and N2O-reducing communities. Fertilization significantly enhanced soil mineral N accumulation compared to treatments with catch crop residues as the only N source. Nitrous oxide emissions, in contrast, were stimulated in rotations with catch crop residue incorporation, probably as a result of concurrent net N mineralization, and O2 depletion associated with residue degradation in organic hotspots. Emissions of N2O from digested manure were low in both years, while emissions from mineral N fertilizer were nearly absent in the first year, but comparable to emissions from catch crop residues in the second year with higher precipitation and delayed plant N uptake. Higher gene abundances, as well as shifts in community structure, were also observed in the second year, which were significantly correlated to NO3- availability. Both the size and structure of the nitrite- and N2O-reducing communities correlated to the difference in N2O emissions between years, while there were no consistent effects of management as represented by catch crops or fertilization. It is concluded that N2O emissions were constrained by environmental, rather than the genetic potential for nitrite and N2O reduction.

show abstract

Effect of Incorporation of Hairy Vetch and Rye Grown as Cover Crops on Weed Suppression Related with Phenolics and Nitrogen Contents of Soil

Cited by 6 publications

References 20 publications

Living Mulch as a Tool to Control Weeds in Agroecosystems: A Review

Living Mulch as a Tool to Control Weeds in Agroecosystems: A Review

Contribution of militarine and dactylorhin A to the plant growth‐inhibitory activity of a weed‐suppressing orchid, Bletilla striata

Catch Crop Residues Stimulate N2O Emissions During Spring, Without Affecting the Genetic Potential for Nitrite and N2O Reduction

Contact Info

Product

Resources

About