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Curriculum (PDF) - Biovision

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the maize growing season. When infection<br />

occurs before and at silking and conditions<br />

are humid and warm, the disease may<br />

cause significant losses in maize production.<br />

Symptoms: Early symptoms are easily<br />

recognized; slightly egg-shaped, watersoaked,<br />

small spots produced on the<br />

leaves. These grow into long, narrow,<br />

spindle-shaped disease areas on the leaf.<br />

They may appear first on lower leaves and<br />

increase in number as the plant develops,<br />

and can lead to complete burning of the<br />

leaves.<br />

Topic 2: Imazapyr-Resistant<br />

(IR) Maize<br />

CIMMYT and KARI have developed a<br />

new approach for striga control in maize.<br />

This technology combines low doses of a<br />

herbicide (Imazapyr), as a seed coat with<br />

herbicide-resistant maize. This prevents<br />

striga from attaching itself to the roots of<br />

maize plant. The herbicide also kills other<br />

surrounding weeds. Extensive on-farm testing<br />

in several countries in Africa has shown<br />

that the herbicide is highly effective. The<br />

treatment leaves a field virtually clear of<br />

emerging striga. This allows intercropping<br />

with legumes and increases yields by up to<br />

three-times. The herbicide does not affect<br />

intercrops when they are planted at least<br />

10 cm from maize hills.<br />

144 | Push-pull curriculum<br />

Trials have shown that IR maize could be<br />

used with the Push-pull system, particularly<br />

in the first season, when the desmodium is<br />

establishing.<br />

Topic 3: Field Day planning<br />

Field day is only five weeks away. There<br />

is a lot of work to do to make it a success.<br />

There are some suggestions in Season 2,<br />

Week 15 that you can use as a guide.<br />

To help you select the member’s farm to<br />

host the field day, we suggest that you use<br />

some or all of the criteria in tables referred<br />

to above.<br />

You will have a lot of things to do. Here<br />

are some suggestions:<br />

1. Assign responsibilities for the field day<br />

2. Tell people about it – the farming<br />

community, colleagues from other field<br />

schools, the provincial administration<br />

(DO, Chief, Assistant Chief, etc.), the<br />

Ministry of Agriculture, Livestock and<br />

Fisheries Extension staff, NGOs and<br />

CBOs, Church groups, schools, and the<br />

media (posters, radio, newspaper, etc.).<br />

3. Make a programme and agree on the<br />

time, what is to be covered, and stick to<br />

it.<br />

4. Make a budget.<br />

5. Prepare an evaluation sheet.<br />

Benefits of livestock feed (Please keep filling the number of units each week as you cut)<br />

Push-pull<br />

plot<br />

Type of benefit Quantity Unit market price Total value<br />

10 Kg Napier grass (1 Unit)<br />

3 Kg Desmodium (1 Unit)<br />

1 kg Desmodium hay<br />

5 kg Silage (1 unit)<br />

Milk (litre)<br />

Other benefit

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