scientific farming methods. why do the farmers use scientific farming methods? to increase the...
TRANSCRIPT
Scientific Farming Methods
Why do the farmers use scientific farming methods?
• To increase the productivity• To solve the farming problems
Scientific farming methods need:
• Money• Technology• Educated farmers
What are the scientific farming methods shown in
the following slides?
• Using machines• To replace labour• But it causes unemployment
• Using irrigation• To ensure water supply• But irrigation without a good drainage
system may make the soil salty
• Adding chemical fertilizers• To improve the soil fertility• But it may cause food poisoning
• Using pesticides• To kill harmful pests• But it may cause water pollution if
overuse
• Cutting terraces on hillslopes• Reclamation• To increase production a danger of over-cultivation &
overgrazing soil erosion
• Growing crops in a greenhouse• To protect the crops from bad
weather
How to avoid the negative impacts of scientific farming
methods?
• Do not overuse farmland• Do not open up poor land• Control population less demand
for food
• Practice organic farming
• Do not use chemical fertilizers & pesticides
• Grow chillies & spring onions
http://www.producegreen.org.hk/english/frame_organic.htm
• Use a scarecrow to keep away birds
• Practise soil conservation by fallowing, crop rotation
• Support organic farming• Buy more green products• Though they’re more expensive
Moo…Moo… Bye!