- 291 -LLeaching 1, 26, 37-38, 44, 46, 49, 54, 57,65, 72, 78-80, 83, 95, 98, 111, 122,126-128, 138, 153, 161, 169, 170,174leonardite 53lime requirement 19, 22-23, 53, 62, 76,97, 129 lime induced-nutrient deficiency 130 liming materials 65, 69, 128, 154, 172lime sulfur 88, 90Mmineral stress 3micronutrient elements 5, 36, 84macronutrient elements 5, 36 mineralization process 39, 40, 77,131,153metalaxyl 208Nnecrosis 9, 58, 73, 87, 99, 107nitrogen mineralization process 39, 40,131, 153Oorganic sulfur 77, 174over liming 62, 65, 69, 98, 112, 125, 129,172Pphosphogypsum 45, 62, 172podzolization process 1primary nutrient elements 5, 84phloem mobile nutrients 10phloem immobile nutrients 11phosphorus induced-calcium deficiency 122potassium induced-magnesium deficiency 122plant nutrient interaction in soilantagonism 1, 37-38, 48, 55, 57, 69, 71-72, 86, 92-93, 98, 106, 111, 120-121, 169, 172synergism 14, 37, 48, 50, 57, 65, 71, 78,86, 120
- 292 -Rrapid soil test 17ribbon test 166-167ripper 195, 208Ssecondary nutrient elements 5, 36, 63,84, 131soilscalcareous soil 5, 11, 31, 34, 39, 48-49,64, 84-86, 92, 99, 102, 104, 109,112, 121, 125, 130, 139-140, 175,178, 180, 204mineral soil 86, 106, 110, 126, 131, 155,175, 177-179 organic soil 92, 99, 105-106, 131, 177 peat soil 92, 105-106, 110, 125, 131, 178,183, 203soil productivity 1, 2, 161, 192, 194, 201soil erosion 1, 15, 26, 37-38, 44, 47, 53,57, 62, 87, 124, 129, 152-154, 156,161,163, 165, 173, 182, 194,212soil seal 45, 62, 69, 129, 155, 172, 181,195soil hard pan 86, 155, 181sulfofication process 77Vvalue to cost ratio 160volatilization process 39, 165Wwater harvesting efficiency 129Zzinc induced-phosphorus deficiency 122
- 293 -
- 294 -