(形容詞) 在小塊土地上 -- 尤其是在都市環境中 -- 密集栽種蔬菜及其他農作物的。這個字是 Small Plot INtensive 的頭字語 (acronym)。
引句：
Some cities, most notably Vancouver, have websites that match urban landowners who don't care to garden with those who have no space but want to immerse their hands in soil. Here and elsewhere, a few entrepreneurs, engaging in SPIN, or Small Plot Intensive, agriculture, rent backyards — several at a time — to grow produce for sale.
—Peter Gorrie, "In gardens, a design for the city," The Toronto Star, February 22, 2009
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