DETERMINING THE PLANTING PLAN 537 



varieties, provision must be made for cross-pollination or poor 

 crops will result. 



6. Preparing the Soil. Grow a tilled crop the year previous 

 to planting. Prepare the soil deeply and thoroughly. An 

 abundance of organic matter is desirable. Eliminate all grass 

 and weeds, such as wild morning-glory and quackgrass, before 

 planting, since, once the rows are established, it is almost 

 impossible to combat such growths effectively. Follow the 



Fig. 227. Red raspberries grown in hills about 18 inches apart and trained 



to a wire trellis. 



directions under 'fertilizing the SoiP' for enrichment of the* 

 soil. 



Have the soil in the best possible tilth for planting. This 

 will hasten the planting operations, give the plants a better 

 chance to establish themselves, and reduce later trouble with 

 grass and weeds. 



7. Determining the Planting Plan. Allow plenty of space 

 for plants. What is plenty of space depends on the type, the 

 variety, and the soil, but in general there is a tendency to set 

 too closely^ the amount of room the plants will take whea 



