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(DO), ‡nµ‡ªµ¤„¦³—oµŠ (Hardness), °¤Ã¤Áœ¸¥ (NH3) ‡nµ‡ªµ¤Áž}œ—nµŠ (Alkalinity) ¨³ ‡nµÅœÁ˜¦˜ (NO3 )
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‡nµ¡¸ Á° (pH), ž¦·¤µ–°°„Ž·Á‹œš¸É¨³¨µ¥œÊε (DO), ‡nµ‡ªµ¤„¦³—o µŠ (Hardness), °¤Ã¤Áœ¸¥ (NH3) ‡n µ‡ªµ¤Áž}œ
—nµŠ (Alkalinity) ¨³ ‡nµÅœÁ˜¦˜ (NO3 )
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šÎµ„µ¦ª·Á‡¦µ³®r o°¤¼ ¨‡ªµ¤Âž¦ž¦ªœÂ»n¤˜¨°— ( CRD; Analysis of Variance in Completely
Randomized Designs ) Áž¦¸¥Áš¸¥‡ªµ¤Â˜„˜n µŠ¦³®ªnµŠ‡nµÁŒ¨¸É¥ o °¤¼¨ÄœÁ¦ºÉ°Š °Š°´˜¦µ„µ¦¦°—˜µ¥ —oª¥ª·›¸
Duncan’ New Multiple Test š¸É ¦³—´‡ªµ¤ÁºÉ°¤´Éœ 95 Áž°¦rÁŽÈœ˜r ץčo ަ„¦¤ÎµÁ¦È‹¦¼ž
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