Estimated of Yield Potential of Five Kinds of Cropping Pattern in the Hexi Corridor

We use the method recommended by The UN Food and Agriculture Organization(FAO),recommended amendment to the light and temperature coefficient to calculate light and temperature potential of cropping pattern of sole wheat monoculture corn,monoculture pea,wheat intercropping corn,peas intercropping maize in the Hexi corridor of Gansu province.The results showed that the most monoculture cropping patterns can not make full use of light and heat resources,intercropping planting can be derived from the crop to cover the time,the main crop intercropping cropping patterns is more conducive to the full heat resources play which wheat intercropping corn and pea intercropping maize.