时间:2019-01-14 作者:英语课 分类:VOA标准英语2012年(十月)


英语课

 



Boosting Africa's Wheat Production


Agricultural experts are meeting in Addis Ababa (10/8-12) to discuss ways of making sub-Saharan Africa a major wheat producer. The region traditionally has played a small role in wheat production, but that could change in the coming years.


Maize 1 is currently king among cereal crops in sub-African Africa, while wheat is the most important crop in North Africa. Wheat production fell sharply in the sub-Saharan region during the 1980s as food aid rose and international prices fell.


Hans Joachim Braun is one of the experts attending the Wheat for Food Security Conference in Ethiopia.


“Wheat was always a commodity crop in North Africa. North Africa was the grain basket for the Roman Empire. And wheat production and domestication 2 started in North Africa, Turkey, Iraq. So for traditional reasons wheat was always there,” he said.


Braun is director of the Global Wheat Program of the International Maize and Wheat Improvement Center, known by its Spanish acronym 3 CIMMYT. He said that maize became very popular in sub-Saharan Africa.


“Maize was only introduced a few hundred years ago into Africa. But maize, of course, does very well in Africa and so it developed into the most important stable there.”


Some attempts were made in the 1960s to grow wheat in sub-Saharan Africa, including South Africa and Zimbabwe. However, the dumping of cheap wheat on the market by the U.S. and Europe made it economically unsustainable. What’s more, Africa’s wheat farms were often far from populations centers. A lack of transportation infrastructure 4 added to the obstacles. Also, the tropical lowlands were not suitable for wheat production.


So why make a major effort now to create a major wheat industry?


Braun said, “In the last four years we have seen three major price hikes where the wheat price and other staple 5 prices exploded. And that puts a big, big bill on countries, which are depending on wheat imports, and Africa is the biggest wheat importer.”


He added that the demand for wheat in sub-Saharan Africa is growing faster than any other commodity, adding there are two main reasons for that.


“With higher income people would like to have more diversified 6 food. But that is possibly not the most important one. The most important one is that there is a tremendous migration 7 of in particular male labor 8 to the cities. And wheat products are convenient food because you can easily buy it. It’s easy to process and you also can store it for a few days, which is different from some of the maize and rice products,” he said.


There are three potential problems for growing more wheat on the continent: climate change, disease and pests. However, Braun says climate change, with its increased carbon dioxide, should not have a major effect on wheat. In fact, he said, it could help wheat grow in rain-fed regions. As for disease and pests, experts recommend growing more resistant 9 varieties to deal with such things as stem rust 10.


“There is a much better strategy to grow resistant varieties in East Africa than to argue that an expansion of wheat would be problematic. Because these farmers grow wheat anyway and at present they grow mostly susceptible 11 cultivars. So if we could establish breeding programs, which provide the farmers with wheat varieties, which have durable 12 rust resistance, that would be a much better strategy for farmers in Africa -- but possibly maybe even more important considering the global status of wheat for the world,” he said.


Rail and road transportation would have to be improved so wheat could be moved in volume to large city markets.


Braun said Nigeria is one country eager to grow wheat.


“The minister of agriculture has declared that Nigeria would like to be self-sufficient for wheat production within the next six to eight years. And Nigeria is the biggest wheat importer in sub-Saharan Africa. And historically, Nigeria was producing wheat in the 60s and 70s, but then this industry was basically killed when the very cheap and subsidized wheat was made available and exported to Africa,” he said.


The International Maize and Wheat Improvement Center estimates sub-Saharan Africa will spend $18 billion this year to import 40 million tons of wheat. The center’s new report outlines the viability 13 of wheat production in 12 countries: Angola, Burundi, Ethiopia, Kenya, Madagascar and Mozambique, as well as Rwanda, Tanzania, the DRC, Uganda, Zambia and Zimbabwe.




n.玉米
  • There's a field planted with maize behind the house.房子后面有一块玉米地。
  • We can grow sorghum or maize on this plot.这块地可以种高粱或玉米。
n.驯养,驯化
  • The first was the domestication of animals. 第一个阶段是驯养动物。 来自《简明英汉词典》
  • In northwestern China, there is no evidence for endemic domestication of any animals. 在中国西北,没有任何当地动物驯化的迹象。 来自辞典例句
n.首字母简略词,简称
  • That's a mouthful of an acronym for a very simple technology.对于一项非常简单的技术来说,这是一个很绕口的缩写词。
  • TSDF is an acronym for Treatment, Storage and Disposal Facilities.TSDF是处理,储存和处置设施的一个缩写。
n.下部构造,下部组织,基础结构,基础设施
  • We should step up the development of infrastructure for research.加强科学基础设施建设。
  • We should strengthen cultural infrastructure and boost various types of popular culture.加强文化基础设施建设,发展各类群众文化。
n.主要产物,常用品,主要要素,原料,订书钉,钩环;adj.主要的,重要的;vt.分类
  • Tea is the staple crop here.本地产品以茶叶为大宗。
  • Potatoes are the staple of their diet.土豆是他们的主要食品。
adj.多样化的,多种经营的v.使多样化,多样化( diversify的过去式和过去分词 );进入新的商业领域
  • The college biology department has diversified by adding new courses in biotechnology. 该学院生物系通过增加生物技术方面的新课程而变得多样化。 来自《简明英汉词典》
  • Take grain as the key link, develop a diversified economy and ensure an all-round development. 以粮为纲,多种经营,全面发展。 来自《现代汉英综合大词典》
n.迁移,移居,(鸟类等的)迁徙
  • Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
  • He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。
n.劳动,努力,工作,劳工;分娩;vi.劳动,努力,苦干;vt.详细分析;麻烦
  • We are never late in satisfying him for his labor.我们从不延误付给他劳动报酬。
  • He was completely spent after two weeks of hard labor.艰苦劳动两周后,他已经疲惫不堪了。
adj.(to)抵抗的,有抵抗力的
  • Many pests are resistant to the insecticide.许多害虫对这种杀虫剂有抵抗力。
  • They imposed their government by force on the resistant population.他们以武力把自己的统治强加在持反抗态度的人民头上。
n.锈;v.生锈;(脑子)衰退
  • She scraped the rust off the kitchen knife.她擦掉了菜刀上的锈。
  • The rain will rust the iron roof.雨水会使铁皮屋顶生锈。
adj.过敏的,敏感的;易动感情的,易受感动的
  • Children are more susceptible than adults.孩子比成人易受感动。
  • We are all susceptible to advertising.我们都易受广告的影响。
adj.持久的,耐久的
  • This raincoat is made of very durable material.这件雨衣是用非常耐用的料子做的。
  • They frequently require more major durable purchases.他们经常需要购买耐用消费品。
n.存活(能力)
  • What is required to achieve or maintain such viability? 要达到或维持这种生存能力需要什么?
  • Scientists are experimenting to find ways to ensure the viability of seeds for even longer periods of time. 正如我们所说,科学家正在试验努力寻找让种子的生命力更加延长的方法。
学英语单词
0479
1-nonanol
absolute offence
acute histiocytic leukemia
approximating
auditor's opinion
ballyragging
berriew
blacklined
bluetick
buchloes
burhanuddin
calisaya
chebeck
CIL
circular section
closed formation flying
cock-knockers
competitive value
concentration-camp
conjunctive adverb
control lever boot
cormorants
depreciation-percentage of original cost method
deviation from linearity
diethylcadmium
drosophila (drosophila) asper
equivalenced variable
erysimum asperums
extrapacking
faunes
finsko
follower eccentric
forstanding
game-boy
Grande-Anse
guardone
Gusevsk
hand lawnmower
head and stern mark
helicotrichia
hibiscus mutabilis l.var.versicolor mak
house cable
Ilskov
indoacetamide
interchange loading track
ion beam evaporation
kiss me goodbye
large-end face
lateral momentum balance
leptosomatic
Ligularia petiolaris
line turn around
mahfuckas
maleficiate
mdmas
mercaptobenzothiazole
methylenechlor madinone
mousing hook
multi-access associative memory
multi-spindle automatic machine
neck screw
nickelous nitrate
niddle-noddle
oil the wheels
Pedicor
peritonitis of newborn
pleuropterus multiflorum turcz.
pozzolan
prefrontal leucotomy
psychomimetic
quilted stockings
rainouts
rate of sinking force
reading error
recurrent frequency
restriction of export
science of book
siphonxanthin
SLPS
snd
specified count
stand-alone operation
streetwards
Synnott Ra.
tetraisobutyl-lead
tinned iron container
tongued-and-grooved plywoods
Top-Sider
tundo
tunica adventitia (vesicul? seminalis)
twin vertical fin
urethroscopists
urobilinicterus
Usquil
vermiphobia
viscosimetric
wage of superintendence
wood-trimmer
World's Columbian Exposition
zero-thrust pitch
zinc black