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柞树又具有超强的保水保肥功能。
The oak tree has the supper strong function of water and fertilizer conservation.
通过较大面积的比较试验，研究了西洋参无土裁培基质的保水保肥性。
The preservation capacity of water and fertility of several soilless cultivation substrates for Panax quinquefolium was compared in a large area.
随耕种年限的增加，耕地在养分、质地以及容重退化的同时保水保肥能力降低。
With the increase of farming years the degradation of nutrients, texture and bulk density weakened the soil abilities of water and fertility retention.
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