2O VEGETABLE GARDENING 



28. Soil series. "It has been found that in many parts 

 of the United States the soil classes of a given set are so 

 evidently related through source of material, method of 

 formation, topographic position, and coloration that the 

 different types constitute merely a gradation in the tex- 

 ture of an otherwise uniform material. Soils of different 

 classes that are thus related constitute a series. A com- 

 plete soil series consists of material similar in many other 

 characteristics, but grading in texture from stones and 

 gravel on the one hand, through the sands and loams, 

 to a heavy clay on the other." Ibid., p. 19. 



29. Atlantic and gulf coastal plains. This soil province 

 includes all of Delaware and Florida and parts of Long 

 Island, New Jersey, Maryland, Virginia, North Carolina, 

 South Carolina, Georgia, Alabama, Mississippi, Louis- 

 iana and Texas, and the following soil series are impor- 

 tant to vegetable growers : Bastrop, Crockett, Laredo, 

 Lufkin, Norfolk, Orangeburg, Portsmouth, Sassafras, 

 Susquehanna and Webb. Of the miscellaneous trucking 

 soils of this province the following may be mentioned : 

 Collington sandy loam, Hempstead loam and muck and peat. 



30. Bastrop series. In Texas, 58,432 acres. (United 

 States Bureau of Soils, Bui. 55, p. 97.) Melons and pota- 

 toes do well on the silt loams. The fine sandy loams are 

 exceptionally well adapted to melons, potatoes, peanuts 

 and vegetables when irrigated. 



31. Crockett series. In Texas, 29,504 acres. The grav- 

 elly loam is well adapted to early vegetables. 



32. Laredo series. In Texas, 55,040 acres. Ibid., p. 

 101 : "Laredo silty clay loam, mapped in the Brownsville 

 area, Texas, is a very productive soil and well adapted 

 to growing early vegetables. . . . Lettuce, melons, 

 cauliflower, beets, peas, cabbage, onions, eggplant, cu- 

 cumbers, tomatoes, carrots and both sweet and Irish 

 potatoes are all profitably grown under irrigation. Cab- 

 bage is the principal crop and the average yield is about 



