A U.N. food agency is calling for money to buy seeds, tools and fertilizer to help earthquake-devastated Haiti through its spring planting season. The Rome-based Food and Agriculture Organization on Saturday called for $23 million to support farming in fields and backyards and repair infrastructure like irrigation canals. It says home gardens and backyard raising of pigs and chickens will help morale and boost nutrition. Even before this week's quake, many Haitians were undernourished, and two years ago, high food and fuel prices triggered violent protests in the impoverished country. The next planting season begins in March, so the U.N. agency is pressing international donors to ensure part of the money in the United Nations' appeal is earmarked for agriculture. 