The Power of Duck
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FURUNO Takao
Publisher TAGARI Publications, Australia
Price 24US$
- Another interesting cultivation system for rice is the "integrated
duck and rice cultivation system". In this system, ducks ("aigamo"
in Japan) are allowed to stay and swim around in the rice field from shortly
after seedling transplanting. The ducks eat the weeds as they sprout (but
not the rice seedlings as they do not like the rice plant's stiff, high-silica
leaves) and any insects that may land on the rice plants. The ducks' excreta
then fertilize the soil providing nutrients for the rice growth. The ducks
perform the function of pesticides and herbicides and chemical fertilizer,
thereby saving the farmer a lot of toil, money and worry (weeding is one of
the greatest problems in Japanese agriculture). This system is sometimes used
with azolla (a nitrogen-fixing floating grass, which is very fast-growing,
and which the ducks will feed on) and sometimes also fish (e.g. loach, which
the ducks do not eat because they cannot see the fish beneath the azolla!)
A well-known practitioner husband and wife team of this system, Mr. Takao
Furuno and his wife in Keisen Town, Fukuoka Prefecture has obtained yields
of 6,470 kg/ha of unpolished rice, where the average rice yield in his area
is 3,830 kg/ha.(181) He uses no chemical fertilizers or pesticides. In fact,
if you visit him, you have to watch where you walk as his neighbors use chemicals
and he does not want any of them trudged near his fields. Here again the key
factors are animal excreta and soil fertility. These are the determinants
of yields, not chemical fertilizers.