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

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Field Guide of Discovery-based Exercises for Organic Vegetable Production
5 Grow carrot seedlings to about 2-3 inches tall;
5 Based on crop stand, decide on when and how many thinning and weeding operations will
be conducted;
5 Conduct simultaneous thinning and weeding operations;
5 Repeat thinning and weeding operations as earlier decided on;
5 Dispose thinned diseased seedlings properly or incorporate thinned uninfected seedlings
into the soil; and
5 Take note of all relevant observations and experiences during this activity.
3. Present output of small groups to the big group. Conduct participatory discussion to allow
sharing of experiences among participants and facilitators.
4. Synthesize and summarize output of small groups into one big group output. Draw up
conclusions and recommendations from this exercise.
some suggested question for processing discussion
❏ What do we mean by thinning in organic vegetable production? What are the reasons for
thinning of vegetable seedlings?
❏ Did you observe transplanted carrot seedlings in organic vegetable fields? If there were any,
how were they compared with direct seeded carrot seedlings?
❏ Why do we need to do thinning of carrot seedlings in the main field? How many thinning and
weeding operations are needed for carrot seedlings? When are they conducted? Why are they
conducted at those times?
❏ Did you learn some better thinning techniques or practices for carrot seedlings from farmers
interviewed? How did they do it?
❏ What other vegetable seedlings need thinning operations? How are they done? Why are they
done?
❏ Were there differences in plant growth (e.g., size and weight of roots) and development (e.g.,
forking and cracking incidences) between thinned and not thinned carrot seedlings?
❏ Were there differences in yields (e.g., marketable and unmarketable roots) between thinned and
not thinned carrot seedlings?