Abstract: Based on the yield and meteorological data,such as sunlight,temperature and precipitation during 1985-2004 in different growing periods of hill dryland maize in Tianshui,the main meteorological factors which influenced the yield of hill dryland were analyzed,by stepwise regression method.The relationship between sunlight-temperature,temperature-precipitation,sunlight-precipitation and sunlight-temperature-precipitation with the main meteorological factors coefficients were analyzed as well.The suitable range of different agricultural climate resources allocation was identified.The results are of significance for the agricultural production.

Key words: Agricultural climate resources, Agricultural climate resources, Allocation, Tianshui, Maize