土壤磷有效性
soil phosphorous availability
土壤有效磷含量
Available phosphorus content of soil
Available P in soil
土壤有效氮
soil effective nitrogen
available nitrogen of soil
Soil available nitrogen
American diammonium
土壤有效硅
available silicon in soil
Soil available silicon
soil available Si
土壤有效含水量
Soil effective water content
土壤有效含水量AWC
Soil available water content AWC
土壤有效钾
soil available K
soil available potassium
Capacity of Potassium fixation
ammonium acetate
土壤有效硫
soil available sulphur
available sulphur in the soil
available sulfur
Soil
土壤有效硫含量
Soil available sulfur content
土壤有效硼临界值
Soil critical available B value
土壤有效水
Soil available water-storage capacity
土壤有效水含量
soil available water content