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