广西多以丘陵山地栽培柑桔,土壤以酸性红壤为多,存在偏酸、土层浅、粘瘦、有机质少的特点,不利于柑桔生长发育,造成柑桔生长缓慢、结果晚、产量低、品质差,甚至有种无收。所以必须进行土壤改良,为柑桔创造一个良好的环境。一、石灰拌土:柑桔生长的最适宜酸度为 PH5.5—6.5,低于5.5以下时,可溶性铝、锰、铁过多,对柑桔根产生毒害,致使果树黄化,甚至死亡,所以在 PH Most of the hilly and mountainous areas in Guangxi cultivated citrus, the soil is more acidic red soil, there is partial acid, shallow soil, slimy, less organic matter, is not conducive to the growth and development of citrus, resulting in slow growth of citrus, the results of late, low yield Poor quality, or even a kind of confiscated. Therefore, soil improvement must be carried out to create a good environment for citrus. First, the lime mixed soil: citrus optimum growth of acidity is PH5.5-6.5, below 5.5 below the soluble aluminum, manganese, iron too much, on the orange root poisoning, resulting in yellowing of fruit trees, or even death, So at PH