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近年来,不少柑桔产区反映,柑桔树未进入结果就出现衰退,有的结了几年果后,表现枝条短、叶片黄、根系有相当部分腐烂,生育力减退.笔者认为不及时采取措施,就会挫伤群众种柑桔的积极性,影响到柑桔业的向前发展.从弱株症状分析,原因有两大类:一是由危险性病害造成的;二是因营养性不良引起的.前者,单纯采取肥、水、治管理工作是难以达
In recent years, many citrus producing areas reflect citrus trees did not enter the result on the decline, and some knot after a few years, the performance of short branches, yellow leaves, the root system has a considerable part of decay, fertility decline.I do not think that Timely measures will dampen the enthusiasm of the masses of citrus, citrus industry affected the forward development from the analysis of the symptoms of weak strains, there are two broad categories: one is caused by dangerous diseases; the second is due to nutritional Badly caused by the former, simply to take fertilizer, water, governance management is difficult to reach