Weed behaviour in crop fields has been extensively studied; nevertheless, limited knowledge is available for particular cropping systems, such as no-till systems. Improving weed management under conditions requires an understanding of the interaction between residues and seedling emergence process. This study aimed to evaluate influence maize wheat residues, applied three different quantities (...

In order to properly determine the value of charring crop residues, the C use efficiency and effects on crop performance of biochar needs to be compared to the un-charred crop residues. In this study we compared the addition of corn stalks to soil, with equivalent additions of charred (300 °C and 500 °C) corn residues. Two experiments were conducted: a long term laboratory mineralization, and a...

BACKGROUND Fruit and vegetables have health and nutritional value, but can also be a source of toxic contaminants such as pesticide residues. OBJECTIVE The aim of this study was to evaluate presence of pesticide residues in fruit and vegetable crops from the central and eastern region of Poland in order to check the compliance of these products with the maximum residue levels' (MRLs) requirem...

There are few data on pesticide exposures of migrant Latino farmworker children, and access to this vulnerable population is often difficult. In this paper we describe a community-based approach to implement culturally appropriate research methods with a migrant Latino farmworker community in Oregon. Assessments were conducted in 96 farmworker homes and 24 grower homes in two agricultural commu...

OBJECTIVE In addition to water contamination, the presence of pesticide residues in food poses a risk to the population, being a serious public health problem in Brazil. With the purpose of getting a better understanding of this scenario, the use of pesticides in tomato crops in the State of Pernambuco, Brazil, was studied. METHODS Questionnaires were applied to obtain social and environmenta...

Pesticides are very hazardous and lethal for organisms as well as for humans. They present danger to consumers, bystanders and workers during manufacture, transport or, during and after use. Pesticides are also toxic to plants and many food crops, including fruits and vegetables, contain pesticide residues after being washed or peeled. Pesticides decrease the biodiversity in soil and it has bee...

2. GENERAL CONSIDERATIONS............................................................................................... 3 2.1. FAO Manual on the submission and evaluation of pesticide residues data for the estimation of maximum residue levels in food and feed ....................................... 3 2.2 Submission of information for consideration by the FAO Panel ................................

Pesticides are widely used in agriculture mainly to increase crop yields to cater huge supply of food products for increasing world population as well as to protect crops from pests and control insect-borne diseases. Increased use of pesticides results in contamination of the environment and the excess accumulation of pesticide residues in food products, which has always been a matter of seriou...