Results 21 to 30 of about 583,647 (375)

Evolving community structure in the international pesticide trade networks [PDF]

open access: yesHeliyon 9(11), e21076 (2023), 2022
The statistical properties including community structure of the international trade networks of all commodities as a whole have been studied extensively. However, the international trade networks of individual commodities often behave differently. Due to the importance of pesticides in agricultural production and food security, we investigate the ...
arxiv   +1 more source

Effects of herbicides on growth and number of actinomycetes in soil and in vitro [PDF]

open access: yesPesticidi i Fitomedicina, 2016
This study was conducted under laboratory conditions to investigate the effects of herbicides (nicosulfuron, metribuzin and glyphosate) on the number of actinomycetes in soil and growth of several isolates of actinomycetes in vitro.
Šantrić Ljiljana   +4 more
doaj   +1 more source

Rhein–Amino Acid Ester Conjugates as Potential Antifungal Agents: Synthesis and Biological Evaluation

open access: yesMolecules, 2023
In the search for crop protectants, amino acid ester conjugates have been widely investigated as potential antifungal agents. In this study, a series of rhein–amino acid ester conjugates were designed and synthesized in good yields, and their structures ...
Shunshun Chen   +8 more
doaj   +1 more source

Economy importance and structural robustness of the international pesticide trade networks [PDF]

open access: yesJournal of Management Science and Engineering 8 (4), 512-528 (2023), 2023
Pesticides are a kind of agricultural input, whose use can greatly reduce yield loss, regulate plant growth, effectively liberate agricultural productivity, and improve food security. The availability of pesticides in economies all over the world is ensured by pesticide redistribution through international trade and economies play different roles in ...
arxiv   +1 more source

Antioxidant activity of Juglans regia L. and Rumex obtusifolius L. leaf extracts and screening for their allelopathic potential [PDF]

open access: yesPesticidi i Fitomedicina, 2022
Secondary plant metabolites with allelopathic activity or phytotoxicity could be biotechnologically important, serving as a source of allelochemicals, and thus contributing to the agro-industrial sector.
Đorđević Tijana   +6 more
doaj   +1 more source

Antimicrobial activity of biochemical substances against pathogens of cultivated mushrooms in Serbia [PDF]

open access: yesPesticidi i Fitomedicina, 2016
Disease control with few or no chemicals is a major challenge for mushroom growers in the 21st century. An alarming incidence of resistance to antibiotics in bacteria, and to fungicides among mycopathogenic fungi requires effective alternatives. Previous
Potočnik Ivana   +5 more
doaj   +1 more source

Dynamics of a Double-Impulsive Control Model of Integrated Pest Management Using Perturbation Methods and Floquet Theory [PDF]

open access: yesAxioms 12 (2023), no. 4, Art. 391, 14 pp, 2023
We formulate an integrated pest management model to control natural pests of the crop through the periodic application of biopesticide and chemical pesticides. In a theoretical analysis of the system pest eradication, a periodic solution is found and established. All the system variables are proved to be bounded.
arxiv   +1 more source

The effect of metribuzin on the density of proteolytic microorganisms and proteolytic activity in different types of soil [PDF]

open access: yesPesticidi i Fitomedicina, 2018
Soil texture and other physical and chemical characteristics of soil are important factors influencing the retention of herbicides in soil ecosystems.
Šantrić Ljiljana   +4 more
doaj   +1 more source

Controlling crop pest with a farming awareness based integrated approach and optimal control [PDF]

open access: yesComput. Math. Methods 3 (2021), no. 6, Paper e1194, 1--24, 2021
We investigate a mathematical model in crop pest controlling, considering plant biomass, pest, and the effect of farming awareness. The pest population is divided into two compartments: susceptible pests and infected pests. We assume that the growth rate of self-aware people is proportional to the density of susceptible pests existing in the crop arena.
arxiv   +1 more source

Reliable LC-MS/MS-based method for trace level determination of 50 medium to highly polar pesticide residues in sediments and ecological risk assessment [PDF]

open access: yesAnal Bioanal Chem. 2019 Dec;411(30):7981-7996, 2020
The occurrence of polar pesticides in sediments has not been extensively investigated because of their relatively poor hydrophobicity and apparently less persistence in the environment. However, their continuous release into the aquatic systems calls for the evaluation of their potential accumulation in sediments and the role of this matrix as a ...
arxiv   +1 more source

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