soil organic nitrogen 第1页

Effects of broadleaf plantation and Chinese fir (Cunninghamia lanceolata) plantation on soil carbon and nitrogen pools. Combined application of chemical and organic fertilizers long-term increase physical proteetion of organic nitrogen in yellow paddy soil Effects of excessive nitrogen fertilization on soil organic carbon and nitrogen and nitrogen supply capacity in dryland Correlation between Spectrophotometric Absorbance of Soil Solution and Contents of Variable Carbon and Nitrogen in Larch Plantation Forests Seasonal dynamics of soil microorganisms and soil nutrients in fast-growing Populus plantation forests of different ages in Yili, Xinjiang, China A review on ecological models of soil N mineralization