By extending the planting hole and improving the soil, soil is humificated from root around to all orchard and then these are the base for increasing the orange quality and tree vigor.

通过扩穴改土，由根际局部熟化到全园熟化，同时增施磷钾肥，可为提高柑桔品质，加快形成丰产稳产的强健树势打下良好的基础。

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By extending the planting hole and improving the soil, soil is humificated from root around to all orchard and then these are the base for increasing the orange quality and tree vigor.

通过扩穴改土，由根际局部熟化到全园熟化，同时增施磷钾肥，可为提高柑桔品质，加快形成丰产稳产的强健树势打下良好的基础。

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