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Unformatted text preview: ntrol Scarecrows Light reflected from
CD disc 3. To Keep away from birdsPhysical control Nets to protect
the crops 4. Methods to maintain soil
structure Use of simple tools 5. Suitable irrigation method Over-irrigation may cause the problem of
salinization in semi arid and arid area Drip irrigation can reduce the use of water- it is a
type of precision farming method What are the costs of these
farming methods? Higher food price
-> more land area is required to produce
(1) The planting density is lower in organic
(2) Some land are left fallowed Hindering factors of organic
farming Discuss in a group of 4-5 girls about the
factors hindering organic farm
development Hint: you may consider the cost of
production, the perception of farmers
and the actual world demand for food...
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This document was uploaded on 01/18/2014.
- Winter '14