Agriculture 1 Case studies 1 Cropping systems 1 Demography 1 Field Crops, (New March 2000) 1 Forest plantations 1 Land Resources 1 Land management 1 Land use 1 Plant Cropping Systems 1 Plantations 1 Pollution and Degradation 1 Population growth 1 Saccharum 1 Saccharum officinarum 1 Silviculture and Forest Management 1 Soil Chemistry and Mineralogy 1 Soil Fertility 1 Soil Surveys and Land Evaluation 1 Soil degradation 1 Soil fertility 1 Soil resources 1 Soil test values Spatial variation 1 Sugarcane 1 Sustainability 1 Temporal variation 1 Tropics 1