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１９９１－１９９５年在四川省会东县鲁吉中学石榴园进行本研究。试验园土壤为红壤，品种为红皮石榴。１９９１－１９９４年每年３－８月，每月５－７日采集土样（取样深度２０ｃｍ，采用多点取样法）和植株的根、主干、枝、叶、花（花展开时）、果（谢花形成幼果时采），带入
This study was conducted in 1991-1995 at Lugu Middle School pomegranate garden in Huidong County, Sichuan Province. The soil in the test garden is red soil and the variety is red pomegranate. From 1991 to 1994, soil samples were collected from March to August every month from May to July, with a sampling depth of 20cm and multiple sampling methods. Roots, stems, branches, leaves, flowers, Xie flowers formed when the young mining), into