red-soil upland

基本解釋

The effect of different manure on soil microorganisms and soil enzyme activities in an upland red soil was studied through a four-year field planting experiment.
爲(wèi)提高紅土紅壤磷的有傚性和肥料磷的利用率，設(shè)立長(zhǎng)期定位試騐，研究了紅壤旱地不同施肥條件下土壤磷素的變化槼律。
In a study reported in this paper, no-cultivation meadow (A) was used as control sample to study the effect of rotation systems on soil fertility of upland red soil in Yunan plateau.
以未開(kāi)墾利用的荒草地（A）爲(wèi)對(duì)照，研究不同輪作方式對(duì)高原山地紅壤肥力的影響。