134 PRINCIPLES OF FARM PRACTICE 



scale, the accurate positions of all the vegetables to be 

 planted may be fixed and the time of planting of each may 

 be indicated. 



If the plan is for the three-field system, the proper placing 

 of the vegetables belonging to each group should be indicated. 

 A planting table giving the time of planting and other details 

 of our common vegetables should be consulted. 



It is especially important to arrange the planting plan to 

 secure variety and succession. A quantity sufficient to supply 

 all needs may thus be provided without the over supply that 

 frequently occurs in a poorly planned farm garden. 



Care and protection. By planting the vegetables in rows 

 far enough apart to permit the use of a field cultivator, hand 

 labor may be reduced to a minimum. The hoe and rake will 

 be needed only for those parts not reached by the cultivator. 

 Experience has shown that thorough cultivation increases 

 both the yield and the quality of garden vegetables. 



Plant diseases and insects are apt to do much harm unless 

 measures are taken for their control. The number of diseases 

 and insects that attack garden plants is too large to be con- 

 sidered here. The details of a means of control will be found 

 in the references suggested in another paragraph. 



Sources of information. Space does not permit further 

 directions for planting or managing a garden but they may 

 be found in references given in the appendix. The conditions 

 brought on by the Great War, in the spring of 1917, aroused 

 an interest in gardening never before known in this country. 

 In response to this interest easily understood and reliable 

 information on gardening has been published by the U. S. 

 Department of Agriculture, U. S. Bureau of Education, State 

 Agricultural Experiment Stations, Agricultural Colleges, and 

 other state institutions in every state. These publications 



