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发表于 2009-4-25 15:03
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Photo of the Day
March 25, 2008
Crop Dusting, Brawley, California, 2005
Photograph by Gerd Ludwig
A setting sun casts a fiery glow over a crop duster spreading pesticides in a Brawley, California, field. In addition to controlling insects, bacterial diseases, and weeds, crop dusting can be used to apply fertilizers, delay fruit ripening, increase or decrease the number of fruit a plant produces, and defoliate plants to facilitate harvest. Biologists and farmers continue to weigh its costs and benefits.
(Photo shot on assignment for, but not published in, "Salton Sea," February 2005, National Geographic magazine)
意译:主标题:作物喷粉,布劳利,加利福尼亚州,2005年
太阳落山蒙上火热投在一个农作物喷粉器扩散杀虫剂在布劳利,加利福尼亚州的原野。 此外,以控制害虫,细菌性病害和杂草,作物喷粉,可以用来施肥,延迟果实成熟,增加或减少的水果植物数目的生产,和落叶植物以方便收获。 生物学家和农民继续衡量其成本和效益。
引自:“美国国家地理杂志”,当天的图片。(2008-3-25)
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