尿素的化學性質及在土壤中的轉化
氮肥應用資料
氮肥(華盛頓州立大學資料)
Effects of urea fertigation of apple trees on soil pH, exchangeable cations and extractable manganese in a sandy loam soil in New Zealand
the biology of soil compaction
Soil Nitrogen and Sulfur
Soil Nitrogen and Sulfur
Contribution of Bacteria to Initial Input and Cycling of Nitrogen in Soils
土壤養分等級分級標準
全國第二次土壤普查養分分級標準