In the same conditions of soil, light, heat, water, fertilizer and management, 63 000 kg silage corn feed can be gained per hectare, output of dry biomass is 21 000 kg, output of metabolism energy is 189 000 Mj, protein production is 1 575 kg, and 8 340 yuan RMB can be obtained. It is 33.1%, 17.98%, 48.9% and 66.8% higher than planting maize （grain and straw）, respectively. Hay production reached 9 300 kg, dry biomass production reached 8 091 kg, metabolism energy production reached 75 330 kg, protein production reached 1581 kg, and economic benefit was 5740 yuan RMB, if alfalfa was planted. It is 199.7%, 82.0%, 35.2% and 19.6% higher than growing soybean. From this we can see that more nutrients can be obtained from the same area of land if good fodder crops were planted, at same time more economic benefit can be obtained. In addition, using these fodder crops to develop cattle-feed production can attain economic benefits 10 740 yuan RMB per hectare,which is 5,740 yuan more than planting maize （total is 5 000 yuan including straw）. The economic output increased as much as 114.8%.Silage corn and alfalfa is two feed crops to be grown.