Agricultural Pesticides and Chemical Fertilisers

McKinlay, Rebecca; Dassyne, Jason; Djamgoz, Mustafa B.A.; Plant, Jane A.; Voulvoulis, Nikolaos

doi:10.1002/9781119950127.ch7

Cited by 3 publications

(2 citation statements)

References 181 publications

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“…The need for detailed environmental study of such practices so as to have a comprehensive view of the environmental impacts of these chemicals in such countries is germane towards providing detailed and comparative analyses for proper environmental management and sustainability. Although, several studies (Jimoh et al [3], Guzzella et al [9], Hotton et al [10], Geyikci [8], Seibo et al [4], McKinlay et al [11], Ogbodo and Onwa [12], Adeoye et al [13], Bhardwaj and Sharma [6], Singh [5], Biswas et al [14], Maton et al [15], Calda [16], Meftaul et al [7]revealed that various levels of agrochemical concentrations have been found in air, sand dust, soils, surface and groundwaters, blood, breast milk, semen and urine of farmers, there is dearth of information on the level of dissipation (of such agrochemicals) along their flow paths particularly in Southwestern and North-central Nigeria.…”

Section: Introductionmentioning

confidence: 99%

Concentration Weathering of some Agrochemicals in Runoff and Soil Interface on the National Centre for Agricultural Mechanization (NCAM) Farm, Ilorin, Nigeria

I. H.,

T. P.,

P.A.

et al. 2024

JAERI

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Agrochemicals are needed to boost agricultural productivity, but substantial quantities are either transported into surface water through runoff or leached into groundwater, which may eventually lead to environmental degradation and pollution. Although several studies have been carried out on the effects of agrochemicals o soil and water qualities but the rate of dissipation of agrochemicals along their pathways are not fully understood yet. The aim of this study therefore was to investigate the level of dissipation of agrochemical elements and compounds as they moved along the furrow. Four experimental fields - NPK fertilizer, urea fertilizer, pesticides (organochlorine) and herbicides (glyphosate) were prepared for this study. The selected agrochemicals were applied on the experimental field and the concentration of chemical elements (electrical conductivity, pH, nitrogen, phosphorus, manganese, zinc, magnesium, potassium, glyphosate and organochlorine) along the furrow were measured at intervals (1 m on a 20 m row) using standard techniques. The range of electrical conductivity, pH, nitrogen, phosphorus, manganese, zinc, magnesium and potassium concentrations for runoff from NPK fertilizer applied field were: 95.75 - 174.51 µS/cm, 5.72 - 7.54, 0.21 - 0.68%, 0.09 - 0.36%, 0.1 - 0.47 mg L-1, 0.25 - 0.66 mg L-1, 4.63 - 7.88 mg L-1 and 7.28 - 16.15 mg L-1; for runoff from Urea fertilizer applied field, the range were: 176.25 - 186.33 µS/cm, 7.14 - 7.64, 0.21 - 0.48 %, 0.21 - 0.38%, 0.41 - 0.65 mg L-1, 0.23 - 0.49 mg L-1, 5.48 - 7.64 mg L-1and 8. 23 - 10.46 mg L-1. The range of electrical conductivity, pH, nitrogen, phosphorus, manganese, zinc and magnesium concentrations for runoff from glyphosate applied field were: 114.00 - 283.78 µS/cm, 6.49 - 7.82, 0.13 - 0.67 mg/kg, 0.03 - 0.09%, 0.41 - 1.60 mg L-1, 0.45 - 2.59 mg L-1, 8.35 - 12.76 mg L-1; and for runoff from organochloride applied field the range were: 344.37 - 380.48 µS/cm, 6.66 - 7.86, 0.30 - 0.56 mg/kg, 0.05 - 0.18%, 0.68 - 0.91 mg L-1, 0.81 - 1.45 mg L-1 12.48 - 14.68 mg L-1. The concentration of agrochemical elements and compounds disintegrate along the furrows on all agrochemical fields except in the case of pH.

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Section: Introductionmentioning

confidence: 99%

Concentration Weathering of some Agrochemicals in Runoff and Soil Interface on the National Centre for Agricultural Mechanization (NCAM) Farm, Ilorin, Nigeria

I. H.,

T. P.,

P.A.

et al. 2024

JAERI

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“…Currently, the development of more sustainable systems related to this theme is a promising field of research. In recent years, several types of polymeric systems have been developed, where the systems with the controlled release of agrochemicals are the most important 1,2 …”

Section: Introductionmentioning

confidence: 99%

Poly(hydroxybutyrate)‐based systems behavior on the controlled release of NPK fertilizers

Daitx

Lima

Gryczak

et al. 2020

Polymers for Advanced Techs

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Here we investigate the behavior of controlled‐release systems based on poly(hydroxybutyrate) (PHB) to propose an actuation mechanism in a designed environment. Two formulations were produced employing 5% pure NPK fertilizer or 30% of bentonite nanoparticles (Bent) previously modified with NPK. The polymeric composites were obtained by melt processing and their thermal properties evaluated. The release of active compounds was evaluated by conductometric analysis in aqueous solutions at different pHs for 30 days, and the results were modulated by the Korsmeyer‐Peppas model. Also, the systems were evaluated for their biodegradation characteristics using different soil types to generate a decomposition profile. In general, the systems showed a good release control, with 40% and 50% of fertilizer being released in 30 days, depending on the conditions and type of polymeric composite employed. The model indicated a linear release of active compounds in the first 30 days, according to the Fick diffusion. Additionally, the compounds were relatively stable in the first 30 days when exposed to biodegradation, being degraded faster speed after this. The efficiency and applicability of the systems were confirmed by the germination tests, which showed that both systems containing NPK favored plant growth, while the system in which the active agents had been previously incorporated into nanoparticles provided a reduction in the waste of agrochemicals. Thus, a novel mechanism of action for polymeric controlled release systems based on thermoplastic biopolymers was determined, supporting more efficient industrial processes.

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Production and Consumption of Biopesticides

Hassan

Gökçe

2014

Advances in Plant Biopesticides

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Agricultural Pesticides and Chemical Fertilisers

Cited by 3 publications

References 181 publications

Concentration Weathering of some Agrochemicals in Runoff and Soil Interface on the National Centre for Agricultural Mechanization (NCAM) Farm, Ilorin, Nigeria

Concentration Weathering of some Agrochemicals in Runoff and Soil Interface on the National Centre for Agricultural Mechanization (NCAM) Farm, Ilorin, Nigeria

Poly(hydroxybutyrate)‐based systems behavior on the controlled release of NPK fertilizers

Production and Consumption of Biopesticides

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