Page 196 - Ilmu Tanah

The Chemistry and Fertility of Soils under Tropical Weeds 183

Carbon · 56, 63, 87, 94, 97, 98, 100, O
148
Copper · 13, 114
Iron · 3, 7, 13, 114 Organic Matters · 10, 57, 79, 86, 87,
Magnesium · 6, 8, 13, 25, 79, 114, 124 89, 94, 95, 99, 102, 103, 113, 119,
Manganese · 3, 13, 114 125, 148, 156
Molybdenum · 7, 13, 114
Nitrogen · 13, 56, 62, 63, 67, 76, 87,
89, 90, 91, 97, 98, 100, 104, 106, R
114, 119, 148
Phosphorus · 3, 7, 13, 56, 64, 67, 69, Roots and Root Excretion
76, 77, 83, 87, 89, 98, 100, 104,
Caffeic Acids · 124
114, 119
Citric Acids · 123, 124
Potassium · 2, 6, 8, 13, 14, 25, 32, 70,
Gallic Acids · 124
76, 112, 119, 126 +
H · 14
Silicon · 124 -
OH · 20
Sodium · 6, 8, 13, 25
Organic Acids · 13, 20, 23, 74, 87, 123,
Sulfur · 3, 7, 13, 87, 89, 104, 114, 119
146, 155
Zinc · 13, 114, 124
Oxalic Acids · 123, 124
Nutrient Forms
p-Hydroxybenzoic Acids · 124
Carbonates · 27, 143 Plant Roots · 10, 57, 59, 61, 75, 81, 87,
Chelates · 24 90, 94, 96, 113, 131, 139, 146
CO 2 · 13, 14, 20, 23, 73, 155 Protocatechuic Acids · 124
Complexes · 24 Rhizospheres · 23, 74, 125, 146
Exchangeable Ions · 24, 32
Root Zones · 59, 79
Fe(OH) 3 · 4 Root-To-Shoot Ratios · 13, 20, 32, 74,
0
Fe · 4
2+ 113, 132
Fe · 3, 4
3+ Salycylic Acids · 124
Fe · 3, 4
Vanilic Acids · 124
Free Ions · 24
+
H · 13, 20, 23, 73, 155
-
H 2 PO 4 · 7 S
2-
HPO 4 · 7
Hydroxides · 27
Soil Biology
Methane · 95
Nitrates · 93 Azospillum · 90
Nitrous Oxides · 95 Azotobacter · 90
Phosphates · 27 Bacteria · 82, 90, 106
3- Consumers · 87
PO 4 · 7
Sulfides · 2, 27 Decomposers · 87
Sulphates · 2, 27, 143 Earthworms · 10, 57, 61, 105
Fungi · 82, 106
Macroorganisms · 57, 75, 94, 105
Mesoorganisms · 10
Microorganisms · 10, 57, 75, 87, 89,
94, 104, 105
Nitrobacter · 91
Nitrosomonas · 91
Abdul Kadir Salam and Nanik Sriyani – 2019