The main result of study is as follows: (1) Citrus orchard soil greyish brown purple mud constant element background value in Jiangjin.

主要研究结果如下：(1)江津市柑橘果园土壤灰棕紫泥常量元素背景值。

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The effects of under-crop sowing grasses in citrus orchard on soil fertility, soil physical properties and orchard microclimate in low hilly red soil region were analyzed.

本文分析了低丘红壤新垦桔园套种牧草对土壤养分、土壤物理性质和桔园小气候变化的影响。

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