Field Guide of Discovery-based Exercises for - Aseanipm ...

learning objectives
322
Field Guide of Discovery-based Exercises for Organic Vegetable Production
• To make participants aware of and understand the contribution of soil solarization in management
of pests and diseases in organic vegetable farming; and
• To learn best experiences on soil solarization from other farmers as a strategy for pest and
disease management in organic vegetable farming.
materials
• Seedbeds, beds, or plots ready for sowing, planting or transplanting with organic vegetable
crops; and
• Office supplies (e.g., Manila papers, notebooks, ball pens, and marking pens).
methodology
• Field walks, role-playing, and brainstorming
Steps
1. Divide participants in small groups and ask them to conduct field walks and observe as many
seedbeds, beds or plots in adjoining farms where soil solarization were practiced before sowing,
planting, or transplanting of organic vegetable crops. List down all observations related to soil
solarization practices, kind of crops planted, crop stand, pest and disease occurrence, etc.
2. Go back to processing area and do a role-play. Divide big group in five small groups. Request
for a volunteer-participant from each small group. Other group members will act as observers.
The volunteers and other group members will perform as follows:
5 Group I volunteer will represent sunlight (e.g., by use of a flashlight, he or she flashes it to
other volunteer-participants).
5 Group II volunteer will represent a clubroot disease of cabbage (e.g., when light is flashed,
he or she acts like succumbing to death and exits from scene).
5 Group III volunteer will represent a bacterial wilt disease of potato (e.g., when light is
flashed, he or she acts also like succumbing to death and exits from scene).
5 Group IV volunteer will represent a root knot nematode of celery (e.g., when light is flashed
he or she acts like resisting heat but eventually succumbs to death and exits from scene).
5 Group V volunteer will represent a cutworm larva about to pupate in soil (e.g., when light
is flashed, he or she acts like running away from heat but eventually succumbs to death and
exits from scene).