基于层次分析法暖棚西瓜移栽期评价与选择

Evaluation and Selection of Watermelon Transplanting Period in Warm Shed Based on Analytic Hierarchy Process

为筛选出昌乐暖棚西瓜的最佳移栽期和适宜移栽期,采用层次分析法对开展的10期暖棚西瓜气象观测与创新种植试验,进行综合评价。以气温、西瓜糖含量、口感、产量、生长日数、价格作为6个指标,确定进行西瓜移栽期评价的3级10个评价因子,建立其综合评价模型。根据评价结果,将供试的十期西瓜移栽期分为5个等级,I级有第三移栽期,为最佳移栽期。糖含量高,口感非常好,且产量较高,价格高。II级有第五移栽期、第六移栽期、第七移栽期,为适宜移栽期。糖含量和产量、价格均略低于第三期。III级有第一移栽期、第二移栽期、第四移栽期、第八移栽期,为较适宜移栽期。糖含量普遍不高,口感一般,价格不高。IV级有第九移栽期,为较不适宜移栽期。V级有第十移栽期,为不适宜移栽期。综合分析认为,昌乐暖棚西瓜最佳移栽时间为12月下旬,适宜移栽时间为12月6日~1月15日。

In order to select the best and suitable transplanting period of watermelon in Changle warm shed, the meteorological observation and innovative planting experiments of 10 warm shed watermelons were comprehensively evaluated by using analytic hierarchy process (AHP). With temperature, sugar content, taste, yield, number of growing days and price as six indexes, 10 evaluation factors of 3 grades were determined for watermelon transplanting period evaluation, and the comprehensive evaluation model was established. According to the evaluation results, the ten phases of watermel-on transplanting were divided into 5 grades. Grade I had the third transplanting period, which was the best transplanting period. The sugar content is high, the taste is very good, and the output is high and the price is high. The second grade has the fifth transplanting period, the sixth trans-planting period and the seventh transplanting period, which is the suitable transplanting period. The sugar content, yield and price are slightly lower than the third phase. Grade III includes the first transplanting period, the second transplanting period, the fourth transplanting period and the eighth transplanting period, which is the most suitable transplanting period. The sugar content is generally not high, the taste is general, and the price is not high. Grade IV has the ninth transplanting period, which is less suitable for transplanting. Grade V has the tenth transplanting period, which is not suitable for transplanting. Comprehensive analysis showed that the best transplanting time of watermelon was late December, and the appropriate transplanting time was from December 6 to January 15.