黄土高原地区土壤养分资源分区及其评价  

The Divide Region and Evaluation of Soil Nutrient Resources in the Loess Plateau Region

作　　者：贾恒义[1] 彭琳[1] 彭祥林[1] 余存祖[1] 

机构地区：[1]中国科学院水利部西北水土保持研究所

出　　处：《水土保持学报》1994年第3期22-28,共7页Journal of Soil and Water Conservation

摘　　要：黄土高原地区土壤养分从黄土丘陵区、鄂尔多斯台地风沙区向内环辐射，由低增高；但是黄土高原地区氮磷缺乏，钾肥在一些地区和一些土壤上有显著增产效果，并能提高作物的品质，微量元素在一些土壤上也是缺乏的。今后在肥料上要进行二元或多元复合肥的施用。The soil nutrient radiated from the loess hills,Oreduos platform sand blown by thestand region to the inner ring,from low to high in the loess plateau region;but be short of N,P inthe loess plateau region,potassium fertilizer has remarkable effect of increase production and raisedquality of plant in some region and some soils,also be short of microelement in some soils.Carry outuse of two and many element complex fertilizer on the fertilizer in the future.

关 键 词：黄土高原 资源 土壤有效养分 评价 

分 类 号：S158.3[农业科学—土壤学]