关键词: 不同母质, 不同母质, 红壤旱地, 磷吸附, 影响因素, 需磷量

Abstract: Taking four solar terms which are closely linked with the critical periods of crop growth and development (Grain Rain, Lesser Fullness of Grain, Grain in Ear, Lesser Heat) in Shihezi, the author analyzed the change of the average temperature and precipitation and characteristics of M-K inspection mutation, did R/ S analysis, and predicted the future trends, aiming to provide references for agricultural production and farming activities. The results showed that: (1) the average temperature of the four solar terms increased during 1981- 2016 in Shihezi; (2) the precipitation of Grain in Ear solar term showed a decreasing trend, precipitation of the other three solar terms showed an increasing trend; (3) the mutation of the average temperature was in Grain Rain 2006, Lesser Fullness of Grain 1995, Grain in Ear 1996 and 1999, and Lesser Heat 2000 and 2003; (4) the future trend of the average temperature and precipitation in these four solar terms would be the same as the trend during 1981-2016, and the trend of increase would not be very strong.