نتایج جستجو برای: feed crops

تعداد نتایج: 104252  

2004

There are many factors that contribute to poverty and hunger in developing countries, including war, political instability, lack of infrastructure and poor economic conditions. We do not claim that the use of GM crops alone will eliminate the need for political, social or economic change, or that they will simply ‘feed the world’. We recognise that we are discussing only part of a much larger p...

Journal: :Regulatory toxicology and pharmacology : RTP 2000
F S Betz B G Hammond R L Fuchs

Plants modified to express insecticidal proteins from Bacillus thuringiensis (referred to as Bt-protected plants) provide a safe and highly effective method of insect control. Bt-protected corn, cotton, and potato were introduced into the United States in 1995/1996 and grown on a total of approximately 10 million acres in 1997, 20 million acres in 1998, and 29 million acres globally in 1999. Th...

2006
Birgit Puschner Amy Peters Leslie Woods

Agriculturally grown plants are potentially contaminated with poisonous weeds. Many potentially toxic plants are found in pastures and crops. Consequently, forage crops at harvest or when directly grazed may contain toxic amounts of poisonous plants. Unfortunately, efficient prevention of contamination with certain poisonous plants is not always feasible or practical, and thus, contaminated fee...

2012
Heather Youngs Chris Somerville

The inclusion of cellulosic ethanol in the Energy Independence and Security Act (EISA) of 2007 and the revised Renewable Fuel Standard (RFS2) has spurred development of the first commercial scale cellulosic ethanol biorefineries. These efforts have also revived interest in the development of dedicated energy crops selected for biomass productivity and for properties that facilitate conversion o...

2000

Visit the new GeneWatch UK online database at http://www.genewatch.org In a desperate effort to reverse its failing fortunes, the biotechnology industry and its supporters are putting their faith in the ‘second generation’ of genetically modified (GM) crops. It is claimed that many of these will bring consumer benefits by offering foods with enhanced nutritional value (so-called ‘functional foo...

Journal: :Agrarnaâ èkonomika 2022

A systematic approach to ensuring the stability of field and grassland feed production is justified. comparative assessment individual types forage crops given select most effective sour- ces in absence a shortage chemicals agricultural. The main directions for public livestock feed, improving quality components crops, especially terms protein sugar content, are shown. An economic efficiency wa...

Journal: :PLoS ONE 2007
Cristina A. Faria Felix L. Wäckers Jeremy Pritchard David A. Barrett Ted C.J. Turlings

Concerns about possible undesired environmental effects of transgenic crops have prompted numerous evaluations of such crops. So-called Bt crops receive particular attention because they carry bacteria-derived genes coding for insecticidal proteins that might negatively affect non-target arthropods. Here we show a remarkable positive effect of Bt maize on the performance of the corn leaf aphid ...

2014
Esteban G Jobbágy Osvaldo E Sala

Solutions to meet growing food requirements in a world of limited suitable land and degrading environment focus mainly on increasing crop yields, particularly in poorly performing regions, and reducing animal product consumption. Increasing yields could alleviate land requirements, but imposing higher soil nutrient withdrawals and in most cases larger fertilizer inputs. Lowering animal product ...

2014
Andreas W. Ebert

Agriculture is under pressure to produce greater quantities of food, feed and biofuel on limited land resources. Current over-reliance on a handful of major staple crops has inherent agronomic, ecological, nutritional and economic risks and is probably unsustainable in the long run. Wider use of today’s underutilized minor crops provides more options to build temporal and spatial heterogeneity ...

2004
Joseph F. Borzelleca Donald L. Grant

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 ................................

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