نتایج جستجو برای: organic agriculture

تعداد نتایج: 261626  

2013
Alfredo Aires Rosa Carvalho Eduardo A S Rosa Maria J Saavedra

Nitrate and nitrite are widespread contaminants of vegetables, fruits, and waters. The levels of these compounds are increased as a result of using organic wastes from chemical industries, domestic wastes, effluents, nitrogenous fertilizers, and herbicides in agriculture. Therefore, determining the nitrate and nitrite levels in biological, food, and environmental samples is important to protect...

Journal: :Environmental Modelling and Software 2002
D. M. Jamu R. H. Piedrahita

A dynamic and mechanistic mass balance model (Integrated Aquaculture/Agriculture System model, or IAAS) for predicting nitrogen and organic matter outputs from aquaculture ponds and their subsequent recycling in conventional agriculture practices has been developed and calibrated using data from Honduras, Thailand and Malawi. The model, developed using Stella modeling software (High Performanc...

2002
Carolyn Dimitri

Burgeoning consumer interest in organically grown foods has opened new market opportunities for producers and is leading to a transformation in the organic foods industry. Once a niche product sold in a limited number of retail outlets, organic foods are currently sold in a wide variety of venues including farmers markets, natural product supermarkets, conventional supermarkets, and club stores...

2016
Chandran Somasundram Vicknesha Santhirasegaram Douglas D. Archbold

The consumption of organic food has grown remarkably, both in developed and developing countries. Although organic food comprises only a small fraction of the food market, its rapid growth has generated much interest among consumers and businesses, as well as researchers. For products to be called organic, the production must conform to a certain established organic standard and be certified by...

Journal: :Turkish Journal of Agriculture - Food Science and Technology 2020

2017
J. Aruna Kumari P. C. Rao G. Padmaja M. Madhavi

Soil is important among all the components of terrestrial ecosystems and is a main source of production in agriculture. Since soil is a dynamic system there is a continuous reaction between soil minerals, organic matter and organisms. These reactions influences physiochemical and biological properties of soil. Soil phosphatases is one of enzyme which plays a major role in the mineralisation pro...

2014
Eva Johansson Abrar Hussain Ramune Kuktaite Staffan C. Andersson Marie E. Olsson

An increasing interest in organic agriculture for food production is seen throughout the world and one key reason for this interest is the assumption that organic food consumption is beneficial to public health. The present paper focuses on the background of organic agriculture, important public health related compounds from crop food and variations in the amount of health related compounds in ...

2007
Jane M.-F. Johnson Alan J. Franzluebbers Sharon Lachnicht Weyers Donald C. Reicosky

Agriculture is a source for three primary greenhouse gases (GHGs): CO2, CH4, and N2O. It can also be a sink for CO2 through C sequestration into biomass products and soil organic matter. We summarized the literature on GHG emissions and C sequestration, providing a perspective on how agriculture can reduce its GHG burden and how it can help to mitigate GHG emissions through conservation measure...

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