Nitrogen Forms in Synthetic Humic Acids Using Nitrogen-15 Nuclear Magnetic Resonance Technique
ZHUO SU-NENG and WEN QI-XIAOLMCP;Institute of Soil Science;Academia Sinica;P. 0. Box 821;Nanjing 210008

..............page:193-200

Effect of Incorporation of Wheat Straw and Urea into Soil on Biomass Nitrogen and Nitrogen-Supplying Characteristics of Paddy Soil
SHEN QI-RONG;XU SHOU-MING and SHI RUI-HEDepartment of Soil Science and Agrochemistry;Nanjing Agricultural University;Nanjing 210014 Nantong Institute of Agricultural Sciences;Jiangsu Province;Nantong 226000

..............page:201-205

Behaviour of Potassium and Trace Elements in Rhizosphere of Flue-Cured Tobacco (Nicotiana Tabacum L.)
HU GUO-SONG;CAO ZHI-HONG;ZHOU XIU-RU;LI ZHONG-LIN and ZHANG XINInstitute of Soil Science;Academia Sinica;P. 0. Box821;Nanjng 210008

..............page:207-220

Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou: Ⅰ. Precipitation Distribution
JIANG QIU-YI;HE LI-MING;YU YI-WU;CHEN GUO-RUI and SHI DE-FAZhejiang Forestry College;Lin’an. Zhejiang 311300

..............page:221-230

Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou: Ⅱ . Dynamics and Decomposition Characteristics of Litter
JIANG QIU-YI;HE LI-MING;YU YI-WU;SHI DE-FA and QIAN XIN-BIAOZhejiang Forestry College;Lin an;Zhejang 311300

..............page:231-238

Effect of Zn Adsorption on Charge of Variable Charge Soils
SUN HAN-YUANInstitute of Soil Science;Academia Sinica. P. O. Box 821;Nanjing 210008

..............page:239-246

Mineralogical Characteristics of Yellow- Red Soils Derived from Granite
LUO JIA-XIAN;YANG DE-YONG;JIANG MEI-YIN;BAO MEI-FEN and CHEN JIEInstitute of Soil Science;Academia Sinica;P. O;Box 821;Nanjing 210008

..............page:247-252

Adsorption of Acrylonitrile on Some Soils and Minerals from Aqueous Solutions
WU DE-YI;N. MATSUE;T. HENMI and N. YOSHINAGADepartment of Agricultural Chemistry;Faculty of Agriculture;Ehime University;Matsuyama 790

..............page:253-259

Humble View on Soil Water Resources
CHEN ZHI-XIONG and ZHOU LIU-ZONGInstitute of Soil Science;Academia Sinica;Nanjing 210008 United Research Center for Water Problems;Academia Sinica;Beijing 100101

..............page:261-268

Release of Soil Nonexchangeable K by Organic Acids
ZHU YONG-GUAN and LUO JIA-XIANInstitute of Soil Science;Academia Sinica;Nanjing 210008

..............page:269-276

Transformation of Applied Phosphorus in a Calcareous Fluvisol
TU SHU-XIN;GUO ZHI-FEN and CHEN SHAO-SHANInstitute of Application of Atomic Energy in Agriculture;Hubei Academy of Agricultural Sciences;Wuhan 430064

..............page:277-283

Species of Inorganic Phosphate Solubilizing Bacteria in Red Soil and the Mechanism of Solubilization
LUO AN-CHENG;SUN XI and ZHANG YONG-SONGDepartment of Soil Science and Plant Nutrition;Zhejiang Agricultural University;Hangzhou 310029

..............page:285-288