Row spacing and weed management methods influences growth and yield of soybean (<i>Glycine max</i> (L.) Merr.)

Daramola, Olumide Samuel; Adeyemi, Olusegun Raphael; Adigun, Joseph Aremu; Adejuyigbe, C. O.

doi:10.2478/ats-2019-0007

Cited by 8 publications

(8 citation statements)

References 29 publications

(28 reference statements)

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“…This trend suggests that rapid weed growth was observed between 3 and 9 WAS in both years. This result corroborates an earlier report on the same ecology, which showed that rapid weed growth occurred between 3 and 9 WAS in a study conducted on soybean (Daramola et al, 2019b). The effect of weed control timing on the growth, yield components and yield of rice Weed control timing had a significant effect on the growth and yield of rice in 2015 and 2016 (Table 3).…”

Section: Resultssupporting

confidence: 90%

The effect of weed control timing on the growth and yield of upland rice (Oryza sativa L.)

et al. 2021

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Weed interference is a major threat to rice production, leading to high yield reduction and reduced profitability. Therefore, field experiments were conducted to evaluate the effect of the different timings of weed control on the growth and yield of upland rice in the 2015 and 2016 cropping seasons. The treatments consisted of periods when the crop was allowed to be weed-infested for the first 3, 6 and 9 weeks after sowing (WAS) and periods when the weeds were controlled for the first 3, 6 and 9 WAS. Two treatments of weed infestation and weed control until harvest were also included as the checks in a randomized complete block design with three replications. In both years, rice grain yields ranged from 0.6 to 0.8 t ha-1 in plots kept weed-infested until harvest, and from 3.5 to 3.9 t ha-1 in plots kept weed-free until harvest, indicating a 79-83% yield loss with uncontrolled weed growth. Weed infestation for the first 3 WAS did not cause a significant reduction in the growth and yield of rice provided the weeds were removed thereafter. However, the delay in weed control until 9 WAS reduced rice growth and resulted in irrevocable yield reduction. It was only necessary to remove the weeds between 3 and 9 WAS for optimum grain yield, as no significant yield increase was observed in weed control after 9 WAS in both years. This study showed that weed control between 3 and 9 WAS would give the optimum growth and yield of upland rice.

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Section: Resultssupporting

confidence: 90%

The effect of weed control timing on the growth and yield of upland rice (Oryza sativa L.)

et al. 2021

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“…This was possibly because of more evenly distribute rainfall experienced in 2017 than in 2016 ( Figure 1). It has been reported that rainfall affects weed species distribution and their competitiveness within a weed community (Daramola et al, 2019).…”

Section: Weed Cover Score Weed Density and Dry Weight As Affected Bymentioning

confidence: 99%

“…However, consumption growth has out-paced domestic production growth with yield stagnated at 960 kg ha -1 , leaving a supply gap of more than 1.5 million tons (Khojely et al, 2018). One of the major constraints to high soybean yield in Nigeria is weed interference (Imoloame, 2014;Daramola et al, 2019). The losses caused by weeds exceed the losses from any other category of damage like insect, pest and diseases (Oerke and Dehne, 2004).…”

Section: Introductionmentioning

confidence: 99%

Timing of weed management and yield penalty due to delayed weed management in soybean

Daramola

2020

Planta daninha

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“…This is however, tedious, inefficient, time consuming and associated with high labour demands (Ogwuike et al, 2014;Datta et al, 2017). In addition, labour for manual weeding is scarce and often too expensive for the average farmer to afford (Adigun et al, 2017;Daramola et al, 2019). Consequently, farmers spend a large amount of time in weeding operation (Daramola et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Herbicides reduce drudgery and protect crops from early weed competition (Rodenburg et al, 2011). However, there are not many herbicides that can control different kinds of weeds with one application, and their efficacy is further limited when they are used alone (Adigun et al, 2017;Daramola et al, 2019). They rarely provide a season-long weed control.…”

Section: Introductionmentioning

confidence: 99%

Challenges of weed management in rice for food security in Africa: A review

Daramola

Adigun

Olorunmaiye

2020

Agricultura Tropica Et Subtropica

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Rice is one of the most important crops for food security in Africa. However, there is a large gap between its present demand and supply. Weed competition is basically one of the major constraints in rice systems in Africa, leading to 48–100% yield reduction and sometimes complete crop failure, thereby threatening food security. Weed control methods currently employed to avoid such losses are predominantly hoe-weeding and herbicide application. Hoe weeding is tedious, inefficient, time consuming, associated with high labour demands and often too expensive for the average farmer to afford. Herbicide use on the other hand, does not provide season-long weed control. Moreover, there are not many herbicides that can control different kinds of weeds with one application. Thus, to optimise yield, financial, social and environmental costs and benefits, integrated and ecological weed management approaches are advocated. Future weed research should therefore be focused on delivering information for the implementation of these approaches. This would require improved knowledge of weed biology and ecology, prioritization of problematic weed species, development of competitive rice cultivars and timely weed control. To address the diversity of weed problems in rice systems in Africa, however, research innovations must take full account of farmer’s local conditions using farmers’ participatory approaches. This review suggests that knowledge-based integrated novel approaches must be developed to assist farmers in coping with the challenges of weed management for sustainable rice production.

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Row spacing and weed management methods influences growth and yield of soybean (Glycine max (L.) Merr.)

Cited by 8 publications

References 29 publications

The effect of weed control timing on the growth and yield of upland rice (Oryza sativa L.)

The effect of weed control timing on the growth and yield of upland rice (Oryza sativa L.)

Timing of weed management and yield penalty due to delayed weed management in soybean

Challenges of weed management in rice for food security in Africa: A review

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