关键词: 基质, 黄瓜, 炉渣, 隶属函数法

Abstract: In order to screen the matrix formula suitable for greenhouse cucumber cultivation, yellow sand and slag were used as raw materials for soilless culture. Seven treatments of different ratios of yellow sand to slag, including 5∶0（T1）, 5∶1（T2）, 5∶2（T3）, 5∶3（T4）, 5∶4（T5）, 5∶5（T6）, 0∶5（T7）, were set to carry out. The physical and chemical properties and the physiological indexes of cucumber in different treatments were determined. The results showed that the plant height, stem diameter and leaf number of cucumber were increased significantly in treatment T5, and it was higher in T5 treatment than those of other treatments. Moreover  the accumulation of plant biomass, chlorophyll, soluble sugar and starch in leaves were also significantly affected by different substrate treatments. The fuzzy membership function method was used to comprehensively evaluate the indicators. The order of comprehensive evaluation value was as follow: T5>T1>T4>T7>T6>T2>T3. It was suggested that  T5 (yellow sand:slag=5∶4) had the best performance and T3 (yellow sand:slag=5∶2) had the worst performance. This study suggested that T5 (yellow sand:slag=5∶4) could be used as an inorganic cultivation substrate for efficient cultivation of cucumber. The present work provided new ideas and theoretical basis for the synergistic production of cucumbers in Southern Xinjiang.

Key words: substrate, cucumber, slag, membership function method