首页
登录
职称英语
Even plants can run a fever, especially when they’re under attack by insects
Even plants can run a fever, especially when they’re under attack by insects
游客
2025-05-02
36
管理
问题
Even plants can run a fever, especially when they’re under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away—straight up. A decade ago,adapting the infrared scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest(害虫)problems.
Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color-coded map showing where plants were running "fevers". Farmers could then spot-spray, using 40 to 70 percent less pesticide than they otherwise would.
The bad news is that Paley’s company closed down in 1984, after only three years. Farmers resisted the new technology and long-term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. "This technique can be used on 75 percent of agricultural land in the United States, "says George Other of Texas A&M. Ray Jackson, who recently retired from the Department of Agriculture, thinks remote infrared crop scanning could be adopted by the end of the decade. But only if Paley finds the financial backing which he failed to obtain 10 years ago. [br] Infrared scanning technology may be brought back into operation because of_____.
选项
A、the desire of farmers to improve the quality of their produce
B、growing concern about the excessive use of pesticides on crops
C、the forceful promotion by the Department of Agriculture
D、full support from agricultural experts
答案
B
解析
依据文章第三段第二行。
转载请注明原文地址:https://tihaiku.com/zcyy/4058549.html
相关试题推荐
Understandingtheculturalhabitsofanothernation,especially______containing
Thesoldierwas______ofrunningawaywhentheenemyattacked.A、scoldedB、charged
(51)Beingangryincreasestheriskofinjury,especiallyamongmen,newres
(51)Beingangryincreasestheriskofinjury,especiallyamongmen,newres
(51)Beingangryincreasestheriskofinjury,especiallyamongmen,newres
Thisdictionaryis______intendedforAmericanlearnersofChinese.A、especiallyB
Evenplantscanrunafever,especiallywhenthey’reunderattackbyinsects
Evenplantscanrunafever,especiallywhenthey’reunderattackbyinsects
Evenplantscanrunafever,especiallywhenthey’reunderattackbyinsects
Theyalsowantthepolice’suseofforcekeptincheck,especiallyinpoorneighb
随机试题
A、Tiresomeandtroublesome.B、Romanticandpeaceful.C、Mentallyexhaustingbuth
Haveyoueverfeltslightlyundertheweather,calledyourdoctorforadvice
Thephrase"anattractiveoffer"(Para.1)inthepassageprobablymeans______.
项目范围管理包括()。A.范围的选取 B.范围的界定 C.范围的规划 D.
根据现有资料,该患者最可能的诊断是A、上消化道出血 B、急性胆囊炎 C、急性
脾最主要的生理功能是A、运化水谷 B、生成津液 C、生成气血 D、宣发肃降
注册会计师在计划审计工作时,必须对重要性水平作出初步判断,以便为检查数量上重要
下列各项中,不影响存款类金融机构流动比率的业务是( )。A.用现金购买短期国债
一位50多岁男性患者,患慢性支气管炎、肺气肿多年,某日上午因用力咳嗽,突感胸痛气
分泌过多可出现向心性肥胖( )。A.生长素 B.甲状腺激素 C.糖皮质激素
最新回复
(
0
)