Front Cover; Advances in Agronomy, Volume 27; Copyright Page; Contents; Contributors to Volume 27; Preface; CHAPTER 1. PHYSIOLOGY OF WATER DEFICITS IN CEREAL CROPS; I. Introduction; II. Sensitivity of Desiccation; III. Improvement of Drought Response through Breeding and Management; References; CHAPTER 2. BIOLOGICAL SIGNIFICANCE OF ENZYMES ACCUMULATED IN SOIL; I. Introduction; II. Role of Accumulated Soil Enzymes in the Initial Phases of the Decomposition of Organic Residues and of the Transformation of Some Compounds
III. Enzymatic Activities in Soil under Conditions Unfavorable for the Proliferation of MicroorganismsIV. Summary; References; CHAPTER 3. RESPONSES OF PLANTS TO AIR POLLUTANT OXIDANTS; I. Introduction; II. Biochemical and Physiological Effects; III. Development and Predisposition to Oxidant Injury; IV. Environmental Factors Influencing Susceptibility and Sensitivity; V. The Role of Stomata; VI. Conclusions; References; CHAPTER 4. PHYSIOLOGICAL, BIOCHEMICAL, AND GENETIC BASIS OF HETEROSIS; I. Introduction; II. Heterosis in Heterotrophs and Autotrophs; III. Occurrence of Heterosis
IV. Evaluation of HeterosisV. Manifestation of Heterosis; VI. Present Theories of Heterosis; VII. Physiological and Genetic Analysis of Heterosis; VIII. Synthesis; IX. Programming in Heterotic Hybrids; X. Future Outlook; References; CHAPTER 5. FERTILIZERS FOR USE UNDER TROPICAL CONDITIONS; I. Introduction; II. Brief Description of Tropics; III. History of Fertilizer Use in the Tropics; IV. Agronomic Considerations; V. Fertilizer Technology Developments; References; CHAPTER 6. FOREST SITE QUALITY EVALUATION IN THE UNITED STATES; I. Introduction
II. History of Site Quality Estimation in the United StatesIII. Methods for Estimating Site Quality; IV. Conclusions; Appendix: Common and Scientific Names of Tree Species; References; CHAPTER 7. THE ROLE OF REMOTE SENSING IN DETERMINING THE DISTRIBUTION AND YIELD OF CROPS; I. Introduction; II. Remote Sensing Development; III. Physical Basis for Remote Sensing; IV. Agricultural Applications of Remote Sensing; V. Future Role of Agricultural Remote Sensing; References; CHAPTER 8. CHEMICAL MONITORING OF SOILS FOR ENVIRONMENTAL QUALITY AND ANIMAL AND HUMAN HEALTH; I. Introduction
II. Soil Pollution SourcesIII. Soil and Waste Composition Monitoring; IV. Methods of Chemical Analysis; V. Monitoring of Macroelements; VI. Monitoring of Microelements; VII. Toxic Trace Elements, Organometallic Complexes; VIII. Recommendations for Continuing Research; References; Subject Index