时间:2018-12-07 作者:英语课 分类:农业与发展


英语课

AGRICULTURE REPORT -January 8, 2002: Composting


By Gary Garriott
This is the VOA Special English AGRICULTURE REPORT.


Many farmers around the world are composting to improve their soil so they can produce better crops.
Composting is the mixing of plant or animal wastes so they break down and produce simpler substances.


Farmers add compost to their soils instead of burning the plant and animal wastes or throwing them away.
Compost is an example of a natural organic fertilizer. Organic fertilizers help to make soils rich so that they
produce more crops for a longer time.


During the growing season, plants take gases from the air such as carbon, hydrogen and oxygen. They combine
these gases with minerals from the soil.


After the growing season ends, many parts of the plant die. Farmers gather a large amount of dead plant materials
into small hills called compost piles. They may add animal wastes. They must add water so the materials will
break down or decay 1.


Soon the plants are attacked by insects and organisms including worms and bacteria. Oxygen helps the organisms
change the plant materials more rapidly. The plants decay into a mixture that can be spread on the farmland
where the crops are growing. The compost returns needed nutrients 2 to the soil.


Some rules need to be followed to produce the best quality compost. Good compost piles need water to speed the
process of decay. Yet the piles should not be too wet or the plant material will be ruined. The temperature of the
compost pile should not be too high or too low. The best temperature for a compost pile is about thirty to thirty-
seven degrees Celsius 3. You can turn the pile over and over to help cool down the material. Turning the compost
pile over adds more oxygen to the mixture which helps it decay.


Sometimes small animals such as rats and mice like to eat the composting materials. This can be prevented if you
add a thin amount of soil to the top of the compost pile.


Farmers who use compost can increase the amount and quality of their crops. Computer users can find more
information about composting from Volunteers in Technical Assistance or VITA.


VITA is an organization based in the United States that helps people around the world use science and
technology to solve problems. VITA’s Internet address is w-w-w dot v-i-t-a dot o-r-g.


This VOA Special English Agriculture Report was written by Gary Garriott.



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1 decay
vi.腐烂,衰落;n.腐烂,腐朽,衰败状态
  • The vegetables have begun to decay.那些蔬菜已开始腐烂。
  • Our powers decay in old age.我们的体力在老年时就衰退。
2 nutrients
n.(食品或化学品)营养物,营养品( nutrient的名词复数 )
  • a lack of essential nutrients 基本营养的缺乏
  • Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》
3 Celsius
adj.摄氏温度计的,摄氏的
  • The temperature tonight will fall to seven degrees Celsius.今晚气温将下降到七摄氏度。
  • The maximum temperature in July may be 36 degrees Celsius.七月份最高温度可能达到36摄氏度。
学英语单词
120 camera
ad-lib,adlibbing
albuginousness
American mail line
arge tsunekii
auto-clipping apparatus
automatic multilevel precedence
basic dye
be a great one for
boron tribromide
cardiac function curve
central gallows for counterpoise
Cheffadene
Citrate(si)-synthase
completely-blank label
Congea tomentosa
coordinate ring of variety
counternarcotics
cupric bitartrate
DIMC
discarding of fixed assets
drawersful
duty differential
Eibelshausen
enriched boron trifluoride neutron detector
ephemerean
exothecium
Fiordland National Park
fluid-fuelled reactor
foreign affiliate
fort johnston (mangochi)
gallium(iii) hydroxide
Gastrodia elata Blume
Gioiosa Ionica
glochidicine
golladay
head house
hieroglypher
high-impedance
ikhnaton
in-situ pile
incite to
inter company transfer
iovino
jeem
JHVH,JHWH
layergram
LE
lithiation
local dent
logical network layer
make a joke of
manchester automatic digital machine
maximum point
mean density of spike
meta-system
non tactile
nordic noir
northeast normal university
Nsakalano
oenite
omapatrilat
ortlio ester
ovaline
peaceful uses of atomic energy
perineal pattern
philosophistical
photofading
Porumāmilla
prime redemption privilege
profit sharings
quake-proof
quasi-perfect code
rain attenuation
Recinto
relative area response
retia venosum
retrodden
rhenium trichloride
rupture of renal pedicle
section circuit-breaker
selection integrated evaluation
self-exchange
shelfstone
shoemaking factory
shoot yourself in the foot
sky jacking
spheroidicity
steel-toecapped
Sterling furnace
stick a fork in me
Szczekociny
techgnoses
technology process
top of ballast
transient nozzle primary barrel
tughra
unctads
verruca plana senilis
VHF AM transceiver
whuss
Wu dialect