of urea and 6 kg. of corn is equal to that in 6 kg. of powdered legume. The former costs only NT $ 47, however, compared with NT $ 600 for the latter.
他舉例說：一公斤尿素加六公斤玉米的混合飼料，相當於六公斤豆粉的營養價值，一公斤尿素只要新台幣七元，六公斤玉米約四十元，總共不過四十七元，而六公斤的豆粉就需要六百元。