The critical period of weed control in double-cropped soybean

Arslan, Mehmet; Üremiş, İlhan; Uludağ, Ahmet

doi:10.1007/bf02981316

Cited by 16 publications

(9 citation statements)

References 27 publications

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“…One way that this challenge can be addressed is the use of predictive modelling to estimate time of weed emergence or to estimate the crop vulnerability to weeds. Currently, no predictive weed emergence or phenology model for A. palmeri has been proposed, but many have used A. palmeri to find the critical period of weed control (CPWC) in crops (Arslan et al, 2006; Everman et al, 2008; Eyherabide and Cendoya, 2002). Especially in the case of fast‐growing A. palmeri , an integrated approach might be most appropriate, combining not just time of weed emergence with the CPWC but also the time for crucial control stages of the weed.…”

Section: Introductionmentioning

confidence: 99%

Windows of action for controlling palmer amaranth (Amaranthus palmeri) using emergence and phenology models

et al. 2021

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Amaranthus palmeri S. Watson has become a weed of economic importance throughout the South-eastern United States in the last 20 years (Webster and Nichols, 2012) being especially problematic in soyabean (Glycine max L. Merr.) and cotton (Gossypium hirsutum L.) fields (Bensch et al., 2003;Berger et al., 2015). Recently, multiple reports have indicated that this weed species is invading agricultural

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Section: Introductionmentioning

confidence: 99%

Windows of action for controlling palmer amaranth (Amaranthus palmeri) using emergence and phenology models

et al. 2021

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“…Results of the experiments showed that the yield of pepper significantly declined with increasing duration of weed presence and this response was in agreement with previous findings reported on other crops (Van Acker et al . 1993; Medina 1995; Amador–Ramirez 2002; Bukun 2004; Arslan et al . 2006; Tursun et al .…”

Section: Resultsmentioning

confidence: 99%

“…In fact, Oliver (1988) reported that long critical periods are indicative of more competitive weeds or less competitive crops. In other summer crops in the region such as soybean and maize, which are more competitive compared to small seeded vegetables, longer CPWC was also determined (Arslan et al . 2006; Uremis et al .…”

Section: Resultsmentioning

confidence: 99%

Critical period for weed control in direct seeded red pepper (Capsicum annum L.)

Tursun

Akinci²,

Uludağ

et al. 2012

Weed Biology and Management

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Direct seeded red pepper is a cash crop in Kahramanmaraş province of Turkey as well as some other nearby provinces. Weeds are a major constraint in red pepper production. Field studies were conducted to determine critical period for weed control (CPWC) in direct seeded spice pepper in Kahramanmaraş, in 2008 and2009.The CPWC in red pepper based on a 2.5%, 5% and 10% acceptable yield loss (AYL) was calculated by fitting logistic and Gompertz equations to relative yield data. The CPWC in red pepper was determined from 0 to 1087 growing degree days (GDD) in 2008 and from 109 to 796 GDD in 2009 for 10% AYL after crop emergence in red pepper. For 2.5-5% AYL, the CPWC starts with germination and lasts until harvest. Direct seeded red pepper is very vulnerable to weed competition and weed control programs for direct seeded spice pepper in Turkey should include pre-emergence and residual herbicides.Keywords: acceptable yield loss (AYL), critical period of weed control (CPWC), direct seeded pepper, red pepper (Capsicum annum L.), spice pepper, weeds.

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“…Effects of different weed species on crop productivity and yield loss have been studied by many researchers (Arslan et al, 2006;Karimmojeni et al, 2010;Zafar et al, 2010), but few studies have investigated effects of different factors on weed biological production (Conley et al, 2002;Vrbnicanin et al, 2006Vrbnicanin et al, , 2017Onć-Jovanović et al, 2011;Bozic et al, 2013Bozic et al, , 2016. Generally, the influence of factors such as time of weed emergence, crop density or illumination on weed biomass and seed production have been studied frequently (Benvenuti et al, 1994;Conley et al, 2002;Teasdale & Cavigelli, 2010), while studies on the influence of herbicides on biological production have been rarer (Vrbnicanin et al, 2006;Bozic et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effects of nicosulfuron on biological production of weedy sunflower (Helianthus annuus)

2019

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Field experiments were conducted to quantify the effects of nicosulfuron on biological production of weedy sunflower (Helianthus annuus). Plants of this weed species were sown in plots sized 5x4.2 m with inter-row spacing of 24 cm, and 70 cm distance between rows. Plants with two pairs of developed leaves were treated with nicosulfuron using the next rates: 0, 10, 20, 40, 60 and 80 g a.i. ha-1. Vegetative parameters (plant height, fresh weight and leaf area) were recorded five times during vegetation, including the first measurement just before herbicide application and four measurements at intervals of about two weeks. Head and seed production (number of heads per plant, head weight, head diameter, weight of seeds per head, weight of seeds per plant, number of seeds per plant) were determined after seed maturity. The application of nicosulfuron caused growth reduction of weedy sunflower in comparison with the control. All application rates of this herbicide reduced vegetative (height, fresh weight, leaf area) and some generative (number of heads per plant, weight of seeds per plant, number of seeds per plant) parameters, which decreased with increasing rates of nicosulfuron. Effects on the remaining generative test parameters (head weight, head diameter, weight of seeds per head) were not analogous to the effects on other parameters. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. III46008]

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The critical period of weed control in double-cropped soybean

Cited by 16 publications

References 27 publications

Windows of action for controlling palmer amaranth (Amaranthus palmeri) using emergence and phenology models

Windows of action for controlling palmer amaranth (Amaranthus palmeri) using emergence and phenology models

Critical period for weed control in direct seeded red pepper (Capsicum annum L.)

Effects of nicosulfuron on biological production of weedy sunflower (Helianthus annuus)

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