Establishment of Sowing Date Suitability Evaluation Model of Peanut in Shandong Province

摘要

In order to solve the problem of premature sowing in peanut production, this study set sowing date experiments (a total of 5 sowing date) at 7 different ecological areas in Shandong Provinceusing the leading varieties. The relationship between peanut growth and meteorological factors was studied. The peanut daily temperature, precipitation and sunshine suitability model were established based on daily climatic data and the meteorological indexes in different growth period of peanut by using the theory of fuzzy mathematics. Meteorological suitability model for different growth stage were established according to the weight coefficient of the three climatic factors in different growth stage of peanut. The quantity changes in temperature, precipitation, sunshine were converted into peanut growth suitability through the method of membership function in fuzzy mathematics on a daily time scale. The research realize the peanut sowing date suitability determination, and provide the quantitative basis for the daily agricultural guidance.