356 



TILLAGE AND IRRIGATION 



Cultivation should begin as soon as possible after seed- 

 ing. After the seedlings appear, it is best to cultivate 

 every week or ten days and after every hard rain. The 

 depth of cultivation depends upon the kind and size of 

 the plant. 



Hand hoeing is not so efficient as cultivating with horse 

 or wheel cultivators. If hand hoeing is practiced, it should 

 be done before the weeds are large or it will prove both 

 tedious and expensive. 



Economical and efficient work can only be accomplished 

 with good tools, hence the following points may be profit- 



Fig. 188. Overhead irrigation of tomatoes. 



ably observed : (i) keep all implements and tools under 

 cover when not in use ; (2) keep them in good repair ; and 

 (3) clean all tools before storing. 



Irrigation. -- The necessity of insuring garden and 

 truck crops against unfavorable weather conditions is 



