Boron is an essential trace element to higher plants and animals.This article has been adopted curcumir colormetry analyse and determined the content of boron in parts feed ingredient in Fengyang area.It has determined the quantity of boron in thirty nine sorts forages.For example:maize(0.0761 μg/g),wheat(0.0194 μg/g),Kaoliang(0.0220 μg/g),maize cake(0.7231 μg/g),bran(0.0229 μg/g),distillers grains(0.1516 μg/g),wild lucerne(0.4630 μg/g),lucerne(flowering phase 0.2050 μg/g),clover(0.1213 μg/g),chinese ca...