为研究淹水时kno3对甜樱桃根�吸的影响设四组盆栽甜樱桃其中一组淹入清水其余三组分别淹入不同浓度的kno3溶液保持液面高出盆土表面 Template




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tomski为研究淹水时kno3对甜樱桃根�吸的影响设四组盆栽甜樱桃其中一组淹入清水其余三组分别淹入不同浓度的kno3溶液保持液面高出盆土表面 coloring