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这种现象在北方发生较为普遍。主要原因是由于经常浇pH值>7的水,使盆土偏碱和板结,以致植株根系的吸水功能受阻,继而丧失,这样植株的枝叶就会因失水而枯萎,最终出现整株死亡现象。防治措施:当发现盆栽茶花生长势不很旺盛时,应立即翻盆换土。一般情况下,2～3年必须换一次盆土。翻盆换土时应用清水将根部的土冲洗干净,并剪除烂根,剪短过长的老根,随后用疏松、肥沃、排水良好的酸性砂壤土重新栽植于新盆中。早春叶芽萌动前为翻盆换土的最适时期。换土后一般1～2个月不能施肥。日常养护中应经常测定水、肥液的pH
This phenomenon is more common in the north. The main reason is due to the constant pouring water with pH> 7, the pot soil is slightly alkaline and harden, resulting in the water absorption function of the plant root blocked, and then lost, so that plant leaves withered due to dehydration and eventually the whole plant death phenomenon . Prevention and control measures: When found potted Camellia growth potential is not very strong, should immediately turn pots for soil. Under normal circumstances, 2 to 3 years must change basin soil. Turn pots for soil replacement water will be the root of the soil rinse clean, and cut rotten roots, cut short roots too long, followed by loose, fertile, well drained acid sandy loam re-planted in a new pot. Early buds sprouting buds before the pot for the best time for soil. After changing soil general 1 ~ 2 months can not fertilize. Daily routine maintenance should be measured water, fertilizer pH