58 VEGETABLE FORCING 



wide range in texture and structure. The latter state- 

 ment undoubtedly is true, for examples can be cited of 

 greenhouse crops having been grown with entire success 

 in soils which in their unimproved state possessed few if 

 any of the characteristics that are regarded as important 

 by greenhouse growers. Production, however, under 

 adverse soil conditions is always more costly and more 

 difficult. As previously stated, the sandy types are best 

 adapted to all of the vegetables which are grown in 

 frames or greenhouses. 



