A Guide to Conservation Agriculture in Zimbabwe - Canadian ...
A Guide to Conservation Agriculture in Zimbabwe - Canadian ...
A Guide to Conservation Agriculture in Zimbabwe - Canadian ...
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section THREE<br />
Practical Steps <strong>in</strong> <strong>Conservation</strong> <strong>Agriculture</strong><br />
Figure 3.1. Bas<strong>in</strong> Spac<strong>in</strong>g for different natural regions<br />
Direction of slope and ra<strong>in</strong>water flow<br />
Natural regions<br />
II and III<br />
60cm<br />
x x x x x x x x x<br />
75cm<br />
x x x x x x x x x<br />
75cm<br />
x x x x x x x x x<br />
• Rows made across the slope at<br />
75cm spac<strong>in</strong>g<br />
• In-row spac<strong>in</strong>g 60cm apart<br />
• Total 22,222 bas<strong>in</strong>s per hectare<br />
Natural regions<br />
III, IV and V<br />
75cm<br />
x x x x x x x x<br />
x x x x x x x<br />
75cm<br />
x<br />
75cm<br />
x x x x x x x x<br />
• Rows made across the slope at<br />
75cm spac<strong>in</strong>g<br />
• In-row spac<strong>in</strong>g 75cm apart<br />
• Total 17,777 bas<strong>in</strong>s per hectare<br />
60cm<br />
Natural regions<br />
II, III, IV and V<br />
x x x x x x x x x<br />
x x x x x x x x x<br />
90cm<br />
• Rows made across the slope at<br />
90cm spac<strong>in</strong>g<br />
• In-row spac<strong>in</strong>g 60cm apart<br />
• Total 18,158 bas<strong>in</strong>s per hectare<br />
90cm<br />
x x x x x x x x x<br />
• 75cm row spac<strong>in</strong>g suits all crops. Closer row spac<strong>in</strong>g<br />
enables earlier crop canopy (plants <strong>to</strong>uch<strong>in</strong>g <strong>in</strong> the rows,<br />
thus shad<strong>in</strong>g out weeds). Draught animals can be used<br />
with 75cm, leav<strong>in</strong>g every third row out, result<strong>in</strong>g <strong>in</strong>a<br />
tw<strong>in</strong>-row or hedgerow effect. This leaves space for a<br />
pathway for spray<strong>in</strong>g and pick<strong>in</strong>g.<br />
• 90cm row spac<strong>in</strong>g makes it easier for the use of draught<br />
animals, but it makes it more difficult <strong>to</strong> achieve early<br />
crop canopy. If legumes are grown, it would be better<br />
<strong>to</strong> put a double crop l<strong>in</strong>e 10 or 15cm either side of the<br />
regular 90cm l<strong>in</strong>es.<br />
37 Farm<strong>in</strong>g for the Future
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