نتایج جستجو برای: field crops

تعداد نتایج: 819875  

2017
Efthymios Rodias Remigio Berruto Dionysis Bochtis Patrizia Busato Alessandro Sopegno Thomas E. Amidon

Various crops can be considered as potential bioenergy and biofuel production feedstocks. The selection of the crops to be cultivated for that purpose is based on several factors. For an objective comparison between different crops, a common framework is required to assess their economic or energetic performance. In this paper, a computational tool for the energy cost evaluation of multiple-cro...

Journal: :Annual review of phytopathology 2010
David B Collinge Hans J L Jørgensen Ole S Lund Michael F Lyngkjaer

Transgenic crops are now grown commercially in 25 countries worldwide. Although pathogens represent major constraints for the growth of many crops, only a tiny proportion of these transgenic crops carry disease resistance traits. Nevertheless, transgenic disease-resistant plants represent approximately 10% of the total number of approved field trials in North America, a proportion that has rema...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم انسانی 1393

this research study aimed to investigate the relationship between field-dependence/independence cognitive style and vocabulary learning strategies among iranian efl learners. ninety participants majoring in english translation at arak university were chosen. the participants were classified into two groups of field-dependent and independent based on the results of group embedded figure test (ge...

2016
Shaohui Zhang Yumei Hua Liangwei Deng

The effects of applied digested pig slurry on a vegetable crops field were studied. The study included a 3-year investigation on nutrient characteristics, heavy metals contamination and hygienic risks of a vegetable crops field in Wuhan, China. The results showed that, after anaerobic digestion, abundant N, P and K remained in the digested pig slurry while fecal coliforms, ascaris eggs, schisto...

Journal: :Journal of experimental botany 2000
J M Dunwell

Transgenic crops are now grown commercially on several million hectares, principally in North America. To date, the predominant crops are maize (corn), soybean, cotton, and potatoes. In addition, there have been field trials of transgenics from at least 52 species including all the major field crops, vegetables, and several herbaceous and woody species. This review summarizes recent data relati...

2010
G. Donald Sherman

variety of crops. Pot tests indicated that addition of about 200 p.p.m. of copper from copper sulfate produced a toxic reaction in soils low in copper, but otherwise comparable to Alsatian vineyard soils, which were found to contain as much as 400 p.p.m. of copper. Among the crops tested, vines were most resistant to copper toxicity; clover and alfalfa were most sensitive. Symptoms of copper po...

2015
Shu Li Xiaoling Tan Nicolas Desneux Giovanni Benelli Jing Zhao Xinhai Li Fan Zhang Xiwu Gao Su Wang

Predator-prey interactions form the core of biological control of arthropod pests. Which tools can be used to monitor and collect carnivorous arthropods in natural habitats and targeted crops? Eco-friendly and effective field lures are urgently needed. In this research, we carried out olfactometer experiments assess innate positive chemotaxis to pollen of seven crop and banker plant by two impo...

2015
Shu Li Xiaoling Tan Nicolas Desneux Giovanni Benelli Jing Zhao Xinhai Li Fan Zhang Xiwu Gao Su Wang

Predator-prey interactions form the core of biological control of arthropod pests. Which tools can be used to monitor and collect carnivorous arthropods in natural habitats and targeted crops? Ecofriendly and effective field lures are urgently needed. In this research, we carried out olfactometer experiments assess innate positive chemotaxis to pollen of seven crop and banker plant by two impor...

Journal: :Environmental pollution 2010
Laure Mamy Benoît Gabrielle Enrique Barriuso

The introduction of glyphosate-tolerant (GT) crops is expected to mitigate the environmental contamination by herbicides because glyphosate is less persistent and toxic than the herbicides used on non-GT crops. Here, we compared the environmental balances of herbicide applications for both crop types in three French field trials. The dynamic of herbicides and their metabolites in soil, groundwa...

2000
Annie Ouin Gilles Paillat Alain Butet Françoise Burel

Over the last decades intensification in agricultural use has lead to changes in landscape structure and composition. Seasonal fluctuations of the wood mouse (Apodemus sylvaticus) are well known in cultivated landscapes, but not well explained. The main question relates to the fate of individuals during summer. The hypothesis of a seasonal dispersal of individuals from hedges to crops was inves...

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