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在生产性柑桔园中接种ＶＡ 菌根真菌（Ｇｌｏｍ ｕｓ ｍ ｏｓｓｅａｅ），设常规施磷区、减施磷区和减施磷＋ 施炭区。试验结果表明，和常规施肥量相比，减少施磷肥量可以显著地提高柑桔的菌根感染率；由于菌根感染率的提高，减施磷区和减施磷＋ 施炭区果实的果汁可溶性固形物含量、固酸比，果皮油胞层的磷含量、糖含量、类胡萝卜素含量，果皮着色度都显著地高于常规施磷区果实；类胡萝卜素含量与磷含量之间的相关系数高于类胡萝卜素含量与糖含量之间的相关系数
In productive citrus orchards inoculated with VA mycorrhizal fungi (Glomus m osseae), set conventional phosphorus area, reducing the phosphorus area and reducing phosphorus + charcoal area. The results showed that compared with the conventional fertilization, reducing the amount of phosphate fertilizer could significantly increase the mycorrhizal infection rate of citrus. Due to the increase of mycorrhizal infection rate, the fruit of reduced phosphorus and reduced phosphorus + charcoal fruit juice The content of soluble solids, solid-acid ratio, P content, sugar content, carotenoid content and pericarp color of the peel layer were significantly higher than those of the conventional phosphorus-applying area. The correlation between carotenoid content and phosphorus content The coefficient is higher than the correlation coefficient between carotenoid content and sugar content