官方藏书 / Science_-_Earth_Agricultural_Farming / Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regions
Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regions Eugene W. Hilgard · Science_-_Earth_Agricultural_Farming · 51 章
目录 The Project Gutenberg eBook of Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regions SOILS Chapter 3 Chapter 4 Chapter 5 Chapter 6 PREFACE. INTRODUCTION. CLASSIFICATION OF SOILS. INFLUENCE OF RAINFALL ON SOIL FORMATION; LEACHING OF THE LAND. CALCITE AND LIMESTONES. “Colloidal” Clay.[17] (B.) MINERALS UNESSENTIAL OR INJURIOUS TO SOILS. PHYSICAL ANALYSIS OF SOILS. CHAPTER VII. THE DENSITY AND VOLUME-WEIGHT OF SOILS. THE ORGANIC AND ORGANIZED CONSTITUENTS OF SOILS. DISTRIBUTION OF THE HUMUS WITHIN THE SURFACE SOIL. CHAPTER X. SOIL AND SUBSOIL (Continued) Capillary Water. Chapter 20 ABSORPTION AND MOVEMENTS OF WATER IN SOILS. EVAPORATION. DISTRIBUTION OF MOISTURE IN THE SOIL AS AFFECTED BY VEGETATION. THE AIR OF SOILS. CHAPTER XV. THE COLORS OF SOILS. INFLUENCE OF TOPOGRAPHY. CHAPTER XVII. RELATIONS OF SOILS AND PLANT GROWTH TO HEAT. PART THIRD. CHEMISTRY OF SOILS. THE SOLVENT ACTION OF WATER UPON SOILS. CHEMICAL TESTS OF IMMEDIATE PRODUCTIVENESS. LIMITS OF ADEQUACY OF THE SEVERAL PLANT-FOODS IN VIRGIN SOILS. INFLUENCE OF LIME UPON SOIL FERTILITY. Insoluble and Soluble Silica and Alumina. Chapter 34 INFLUENCE OF ARIDITY UPON CIVILIZATION. Chapter 36 COMPOSITION AND QUANTITY OF ALKALI SALTS. Chapter 38 INDUCEMENTS TOWARD THE RECLAMATION OF ALKALI LANDS. Chapter 40 DIFFERENCES IN THE FORM AND DEVELOPMENT OF TREES.[188] Chapter 42 Calciphile, Calcifuge and Silicophile plants. RECLAIMABLE AND IRRECLAIMABLE ALKALI LANDS AS DISTINGUISHED BY THEIR NATURAL VEGETATION. APPENDIX A. APPENDIX B. APPENDIX C. INDEX. AUTHORS REFERRED TO. Chapter 50 THE FULL PROJECT GUTENBERG™ LICENSE