Impact of Herbicides on Non-Target Organisms in Sustainable Irrigated Rice Production Systems: State of Knowledge and Future Prospects

Galhano, Victor; Gomes, Laranjo; Eduardo, Fernández-valientec; Videira, Romeu A.; Peixoto, Francisco

doi:10.5772/13568

Cited by 8 publications

(5 citation statements)

References 91 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the advent of green revolution in 1960, intensive agricultural practices that came into existence, including use of highyielding, disease-resistant crop varieties, and constant input of agrochemicals such as chemical fertilizers, pesticides etc. Application of such chemicals adversely affects the dynamic equilibrium of soil and affects agro-biodiversity by destroying non-target useful soil flora and fauna [1] and [2].…”

Section: Introductionmentioning

confidence: 99%

Role of Mineral and Bio-fertilizers on Some Soil Properties and Rice Productivity under Reclaimed Saline Soils

Mohaseb¹,

Kenawy²,

Shaban³

2019

ASRJ

View full text Add to dashboard Cite

A field experiment (randomized complete blocks with three replicates) was conducted during two successive summer seasons of 2016 and 2017 at Sahl El-Houssinia Agriculture Research Station in El-Shakia Governorate, Egypt. Its lies between 32˚00/00 to 32˚15/00/ N latitude and 30˚50 / 00// to 31˚15 00// E longitude. The combined effect of bio-fertilizers inoculated with Rhizobium radiobacter sp strain (salt tolerant PGPR); Bacillus megatherium (dissolving phosphate) and Bacillus circulans (enhancing potassium availability) and yeast strains (Saccharomyces cerevisiae) combined with different rates of N, P and K fertilizers (50, 75 and 100%) was evaluated on some soil properties, nutrient content in rice plants, and rice productivity in a reclaimed saline soil. From the crop field of the Agricultural Research Institute (ARC), Egypt, 101 grain kernels from rice (Oryza sativa) var. Sakha were selected. The results indicated that soil pH and EC were decreased in soil treated with bio-fertilizers combined with different rates of mineral fertilizers in comparison with soil treated with yeast and control. Available N, P, K, Fe, Mn and Zn in the soil increased with the use of bio-fertilizers. Application of mineral fertilizers (N, P and K) alone or combined with bio-fertilizers (bacteria and yeast) resulted in increased yield grains and straw of rice plant. Macro- and micronutrients concentrations and uptake in grain and straw of rice plants increased in soil treated with bacteria + 75% N+P+K fertilizers compared with other treatments.

show abstract

Section: Introductionmentioning

confidence: 99%

Role of Mineral and Bio-fertilizers on Some Soil Properties and Rice Productivity under Reclaimed Saline Soils

Mohaseb¹,

Kenawy²,

Shaban³

2019

ASRJ

View full text Add to dashboard Cite

show abstract

“…It consists of both chemical and nonchemical approaches and focuses on keeping weed populations below a certain threshold level by optimizing control measures in a strategic and holistic way (Wilkerson et al 2002). Herbicides are used as a last resort in IWM, although where they are required, they should be used in an integrated management approach, such as integration of soil-active preemergence and postemergence herbicides, rotation of herbicides with different modes of action (MOAs), or mixing of herbicides with different MOAs with best application practices (Harker et al 2012;Harker and O'Donovan 2013;Kumar et al 2017). For the PTR system in tropical and subtropical Asia, several cultural practices including appropriate land preparation by puddling and leveling, uniform crop establishment as assured by transplanting method, early flooding, and transplanting larger seedlings with potential to develop groundcover faster constitute an integral part of IWM (Kumar et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Yet although herbicides can effectively control rice weeds, sole dependence on chemical control measures poses both environmental and economic risks (Kumar et al 2017). The former include the evolution of herbicide resistance in weeds and negative effects on non-target organisms, whereas the latter include additional costs involved in controlling new weed species that may result from shifts in weed flora with use of chemical control methods (Boutin et al 2014;Galhano et al 2011;Heap 2021;Hossain et al 2020;Kumar et al 2017;Qi et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Integrated weed management in transplanted rice: options for addressing labor constraints and improving farmers’ income in Bangladesh

Ahmed

Kumar²,

Alam³

et al. 2021

Weed Technol

View full text Add to dashboard Cite

In Bangladesh, weeds in transplanted rice are largely controlled by labor-intensive and costly manual weeding, resulting in inadequate and untimely weed control. Labor scarcity coupled with intensive rice production has triggered increased use of herbicides. These factors warrant a cost-effective and strategic integrated weed management (IWM) approaches. On-farm trials with transplanted rice were conducted during monsoon (‘Aman’) season in 2016 and 2017 and winter (‘Boro’) season in 2016 to 2017 in agroecological zones 11 and 12 with ten treatments - seven herbicide-based IWM options, one mechanical weed control-based option, and two checks – farmers’ current weed control practice and weed-free, to assess effects on weed control, grain yield, labor use, and profitability. Compared to farmers’ practice, herbicide-based IWM options with mefenacet+bensulfuron-methyl as preemergence (PRE) followed by (fb) either bispyribac-sodium or penoxsulam as postemergence (POST) fb one hand-weeding (HW) were most profitable alternatives, with reductions in labor requirement by 11 to 25 persons-day ha−1 and total weed control cost by USD 44 to 94 ha−1, resulting in net returns increases by USD 54 to 77 ha−1 without compromising on grain yield. In contrast, IWM options with bispyrbac-sodium or penoxsulam as POST application fb one HW reduced yields by 12 to 13% and profits by USD 71 to 190 ha−1. Non-chemical option with mechanical weeding fb one HW performed similarly to farmers’ practice on yield and profitability. We suggest additional research to develop feasible herbicide-free approaches to weed management in transplanted rice that can offer competitive advantages to current practices.

show abstract

“…Since the start of global 'green revolution' in 1960s, commercial agriculture pursues the use of high-yielding varieties of crops, which need constant input of agrochemicals such as chemical fertilizers, pesticides and organic fertilizers. However, the addition of agrochemicals to any agro-ecosystems, rice fields for example, affects the dynamic equilibrium of soils (Bambaradeniya and Amerasinghe, 2003), by eliminating a part of non-target useful soil flora and fauna (Galhano et al, 2011). Diverse microbial events in detritus soil layer, linked to replenishments of general and mineral nutrition during crop growth, become jeopardy, due to pesticide applications (Ware and Whitacre, 2004;Ferrero and Tinarelli, 2007).…”

mentioning

confidence: 97%

Probit Analysis of Carbamate-Pesticide-Toxicity at Soil-Water Interface to N2-Fixing Cyanobacterium Cylindrospermum sp

Padhy¹,

Rath²

2015

Rice Science

View full text Add to dashboard Cite

Toxicity-data of two carbamate insecticides, carbaryl and carbofuran, and three fungicides, ziram, zineb and mancozeb with rice-field N 2 -fixing cyanobacterium Cylindrospermum sp., obtained by in vitro growth and at soil-water interface, were analyzed by the probit method. Growth enhancing concentration, no-observed effective concentration, minimum inhibitory concentration, the highest permissive concentration and lethal concentration 100 (LC 100 ) were determined experimentally. The LC 50 values of carbaryl, carbofuran, ziram, zineb and mancozeb in N 2 -fixing liquid medium were 56.2, 588.8, 0.07, 4.2 and 3.4 μg/mL, respectively, whereas the corresponding LC 100 values were 100.0, 1500.0, 0.17, 25.0 and 9.0 μg/mL, respectively. The LC 50 values of these pesticides in succession in N 2 -fixing agar medium were 44.7, 239.9, 0.07, 1.8 and 2.3 μg/mL, respectively, whereas the corresponding LC 100 values were 100.0, 600.0, 0.17, 10.0 and 7.0 μg/mL, respectively. Similar results with nitrate supplemented liquid and agar media indicated that nitrate supplementation had toxicity reducing effect. The LC 50 and LC 100 values of toxicity in the N 2 -fixing liquid medium at soil-water interface were 91.2 and 200.0 μg/mL for carbaryl, 2 317 and 6 000 μg/mL for carbofuran, 0.15 and 0.50 μg/mL for ziram, 16.4 and 50.0 μg/mL for zineb, and 7.2 and 25.0 μg/mL for mancozeb, respectively. Each LC 100 value at soilwater interface with a pesticide was significantly higher than its corresponding LC 100 value at liquid/agar media. It can be concluded that, under the N 2 -fixing conditions, the cyanobacterium tolerated higher levels of each pesticide at soil-water interface.

show abstract

Impact of Herbicides on Non-Target Organisms in Sustainable Irrigated Rice Production Systems: State of Knowledge and Future Prospects

Cited by 8 publications

References 91 publications

Role of Mineral and Bio-fertilizers on Some Soil Properties and Rice Productivity under Reclaimed Saline Soils

Role of Mineral and Bio-fertilizers on Some Soil Properties and Rice Productivity under Reclaimed Saline Soils

Integrated weed management in transplanted rice: options for addressing labor constraints and improving farmers’ income in Bangladesh

Probit Analysis of Carbamate-Pesticide-Toxicity at Soil-Water Interface to N2-Fixing Cyanobacterium Cylindrospermum sp

Contact Info

Product

Resources

About