

Contents xvii 



PAGES 



Principles Governing the Puddling of Soils. Character of 



puddling Bad effects Precautions to prevent 334-336 



Principles Governing the Washing of Soils. The common 

 mistake What constitutes good irrigation Methods 

 which prevent washing 337, 338 



Field Irrigation by Flooding. Two different types Used 

 most where intertillage cannot be practiced Flooding 

 by running water As practiced in Colorado Where 

 slopes are steep Where fields are short Flooding by 

 checks Size of checks Forming checks On irregular 

 slopes Handling the water Large systems - Forming 

 check ridges 338-350 



Fitting the Surface for Irrigation. Leveling devices 



Shuart land grader French land grader 351, 352 



Field Irrigation by Furrows. Adapted to intertillage crops 

 Watering before planting Irrigation of potatoes 

 Watering alternate rows Lateral spreading of water 

 Effect on yield Watering sugar beets and maize . 352-359 



Water-meadows. Laid out for continuous flow System at 

 Salisbury, England In Italy In Belgium Mountain 

 meadows 359-365 



Irrigation of Cranberries. Laying out the marshes Rapid 

 flooding and draining Irrigation of small fields by 

 pumping 365-368 



Irrigation of Eice Fields. South Carolina system Trunks 

 Germinating the rice Dry hoeing Irrigation after 

 dry growth stage Prevention of red rice Upland irri- 

 gation 368-373 



Orchard Irrigation. Furrow method best Capillary 

 spreading of water Distributing flumes Foot ditch 

 Watering by ring furrows 373-381 



Cultivation after Irrigation. The cardinal principle 

 Forms of orchard cultivators Importance of cultiva- 

 tion in humid climates 381-383 



