In addition, to replace such expensive foodstuffs as powdered legume and potatoes, Dr. Chen taught the dairymen to use a combination of urea fertilizer instead. He pointed out that the nutrition contained in 1 kg.
陳茂牆現在已開始改用尿素肥料來代替豆粉餵牛，不但營養價值毫不遜色，還可以為酪農節省一大筆飼料費。