Page 197 - Ilmu Tanah

184 The Chemistry and Fertility of Soils under Tropical Weeds

Producers · 87 Equilibrium Constants · 4, 22, 24, 115,
Rhizobium sp · 90 139
Soil Organisms · 57 Exchangeable Cations · 7, 13
Soil Chemical Processes Hidrogen · 2
Acidification · 3, 6, 13, 20, 23, 75, 76, Negative Charges · 142
87, 91, 155 Optimum pH · 32, 66, 84
Adsorption · 4, 10, 13, 15, 21, 24, 139, Organic C Content · 13, 44
140 Organic Matter Content · 13
Alkalination · 3, 75 Oxidative · 3
Ammonification · 91 Oxygen · 61
Cation Exchange · 4, 13, 26, 114 pH · 2, 6, 7, 13, 14, 21, 26, 29, 31, 32,
Chelation · 4, 27, 139, 158 57, 64, 65, 66, 73, 75, 78, 79, 82,
Complexation · 24, 27, 139, 158 83, 103, 113, 115, 121, 124, 140,
Dechelation · 27, 139 142, 146, 155, 156
Decomplexation · 27, 139 Preference · 115
Decomposition · 13, 15, 21, 23, 27, Redox Potential · 2, 3, 13, 29
31, 32, 87, 90, 113, 119, 157 Redox Reaction · 22
Denitrification · 93 Reductive · 3
Desorption · 4, 10, 13, 21, 114, 139 Total N · 44
Dissociation · 114 Soil Enzymes
Dissolution · 3, 8, 9, 13, 22, 27, 77, Acid Phosphatases · 59, 80, 108
113, 139 Alkaline Phosphatases · 59, 80, 81,
Fixation · 90 108
Ion Exchange · 13, 114 Arylsulfatases · 12, 13, 59, 63, 74, 81,
Leaching · 21 89, 100, 108, 119, 148
Ligand Exchange · 26, 114 Dehydrogenase · 59, 100, 106
Liming · 4, 6, 77, 83 Glutaminase · 100
Nitrification · 76, 91, 92 Phosphatases · 10, 13, 32, 61, 63, 65,
Oxidation · 6, 13, 93, 94, 114 74, 83, 89, 100, 104, 106, 108, 109,
Precipitation · 3, 5, 8, 9, 13, 15, 21, 119, 148
27, 139, 140, 143 Phosphodiesterase · 65, 81, 83
Reduction · 6, 13, 93 Proteases · 12, 13, 58, 74, 89, 100,
Respiration · 61, 75 119
Weathering · 8, 13, 15, 21, 23, 27, 31, Sulfatase · 59
113, 116, 157 Ureases · 13, 59, 65, 81, 83, 91, 100,
Soil Chemical Properties 104, 106, 108, 148
Adsorption Capacity · 142 -Glicoaminidase · 59
Allelopathy · 36 -Glucosidase · 59, 64, 100, 106, 108,
Available P · 44 148
Base Saturation · 7, 21, 32, 79 Soil Minerals
C/N Ratios · 31, 115 Albite · 30
Cation Exchange Capacity · 6, 10, 13, Al-P · 3, 7, 27, 114
21, 26, 32, 44, 56, 67, 79, 115, 125, Anortite · 30
146, 148, 157 Biotite · 30, 117
Complexing Agents · 155 Calcite · 30
Electron Acceptors · 94 Calcium Carbonate · 67
Electron Donors · 94 Calcium Phosphates · 77, 78
Enzymatic Activities · 13, 31 Ca-P · 27, 114

Abdul Kadir Salam and Nanik Sriyani – 2019