8 CONTENTS 



Chapter 5. BARNYAIyD, STABLE AND GREEN MANURES 76 



Mamire'ari important farm asset As a source of plant food Physical effect of 

 manures Biological effect of manure The value of manure Horse manure 

 Cattle manure Hog manure Sheep manure Poultry manure Miscellaneous 

 farm manures Value of manure influenced by quality of feed Amount and char- 

 acter of bedding affects value of manure Methods of storing and handling Losses 

 of manure Experimental results How to prevent loss Absorbents vs. cisterns 

 Sterilization Reinforcing of manures Economical use of manure To what crops 

 should manure be applied To what soils should manure be applied Climate 

 affects decomposition Eroded soils most in need of manure Rate of application 

 Methods of applying manure Top dressing vs. plowing under The parking 

 system Distribution of benefits. 



Green Manures. 



When is green manuring advisable Objections to green manuring Principal 

 green-manuring crops. 



Chapter 6. LIME AND OTHER SOIL AMENDMENTS 97 



Soils need lime Lime content of soils How soils lose lime Lime requirements 

 of soils Crops require lime Tolerance to acidity Lime as affecting growth of 

 plants Sources of lime Forms of lime. 



Functions of Lime. 



Lime as plant food Chemical action of lime Physical effect of lime Lime affects 

 soil bacteria Lime corrects soil acidity Sanitary^ effect of lime Injurious effect of 

 lime Rate of application Time of applying Frequency of application Methods 

 of applying Relative values of different forms of lime Mixing with manure and 

 fertilizers Experimental results Spreading lime Slaking lime Crushing vs. 

 burning lime. 



Chapter 7. SOIL WATER, ITS FUNCTIONS AND CONTROL 112 



Amount and distribution of rain Amount of water necessary to produce crops 

 Transpiration by plants Forms of soil water Capillary water Gravitational 

 water Hygroscopic water Water affects temperature of soil Water storage 

 capacity of soils Moisture conservation Removing excess of water. 



Land Drainage. 



Drainage increases warmth and fertility of soil Improves health conditions Open 

 vs. underground drains Quality of tile Cost of tile and excavating Depth and 

 frequency of drains Grades, silt basins and junctions The outlet Size of tile. 



Chapter 8. GENERAL METHODS OF SOIL MANAGEMENT 124 



Objects of tillage Plowing Time of plowing Depth of plowing Subsoiling 

 Disking Harrowing Planking or dragging Rolling Character of seed-bed 

 Cultivation and hoeing Control of weeds Soil mulches Soil erosion Soil 

 injury Time and intensity of tillage are economic factors. 



PART H. FARM BUILDINGS AND EQUIPMENT 



Chapter 9. FARM BUILDINGS, FENCES AND GATES 139 



The Farm Residence. 



Barns. 



Bank barns Dairy barns Storage capacity Floor space and arrangement 

 Stable floors Lighting Ventilation Conveniences Silos. 



Out Buildings. 



The implement house Corn cribs Hog houses Poultry houses Milk houses 

 Ice houses Roofing Use of concrete Lightning rods Fences and gates. 



Chapter 10. FARM MACHINERY AND IMPLEMENTS 161 



Advantages of farm machinery Tillage machinery Cultivators Seeding 

 machines Corn planters, 



