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