minimum soil K level value  最低水平值

Soil K balance  土壤钾素平衡

Soil K content and forms  土壤钾素含量及形态

soil K forms  土壤钾形态

soil K status  土壤钾素状况

soil K supply level  土壤供钾水平

Critical level of soil available K  速效钾临界值

fertilizing critical values of soil available K  临界指标

K band of the soil  土壤K库

K supplying rate of soil  土壤供K率

soil available K  土壤有效钾; 土壤速效钾; 速效钾

Soil erodibility ( K )  土壤可蚀性(K)

Soil erodibility factor K  土壤可蚀性

soil erodibility K Value  土壤可蚀性(K值); 土壤可蚀性K值

Soil erodibility K-factor  土壤可蚀性K值

Soil fast available K  速效钾

soil N and K  土壤氮、钾

Soil slowly available K  缓效钾

soil-water distribution coefficient K(d)  土－水分配系数K(d)