ROBBING'S FRUIT GROWERS' GUIDE 



Proceed to stake the field in squares. Then without 

 the aid of a chain, place a stake in the center of each 

 square. This is readily determined by sighting along 

 the two diagonal rows of stakes at right angles to each 

 other. 



Rule: Quincunx Method. Multiply the number re- 

 quired to the acre "Square Method" by 2. The result 

 will be the number of plants required to the acre by this 

 method. 



Hexagonal System. This is the only one in which 

 the trees are equidistant in every direction, every tree 

 being at one point of an equilateral triangle. 



The name "Septuple," sometimes applied to this 

 system, refers to the fact that the number of trees in 

 each group unit is seven. Note hexagon on diagram. 



To illustrate the plan to be followed, we will consider 

 that the trees are to be set 24 feet apart. Then on base 

 line A B set stakes 24 feet apart. On base line A C set 

 stakes 0.866 times the planting distance apart or every 

 20.784 feet (or 20 feet 9 inches). 



The first stake on the intermediate line, shown by the 

 hollow circle on the diagram, should be 12 feet from the 

 base line A C and 20 feet 9 inches from base line C D. 



In using this method of staking, tags of two different 

 colors should be used, one starting at zero and the other 

 .50 times the planting distance from the zero end of the 

 chain. 



For the convenience of the planter we are giving 

 herewith the distances between rows of trees, parallel 

 with base line A B on the diagram, to correspond with 

 various planting distances: 



As an illustration, if trees are planted 18 feet apart 

 on base line A B, the following row would be 15 feet 7 

 inches and correspondingly greater distance where the 

 trees are to be planted further apart. 

 Base line A B 18 ft. Secondary line 15 ft. 7 in. from A B 

 Base line A B 20 ft. Secondary line 17 ft. 4 in. from A B 

 Base line A B 22 ft. Secondary line 19 ft. ^ in. from A B 

 Base line A B 24 ft. Secondary line 20 ft. 9 in. from A B 

 Base line A B 28 ft. Secondary line 24 ft. 3 in. from A B 



Base line A B 30 ft. Secondary line 26 ft. in. from A B 

 Base line A B 36 ft. Secondary line 31 ft. 2 in. from A B 

 Baseline A B 40 ft. Secondary line 34 ft. Sin. from A B 



Rule: Hexagonal Method. First, figure the number 

 of trees required per acre by the "Square Method," us- 

 ing the same planting distance; then divide by the 

 decimal .866. The result will be the number of plants 

 required to the acre by this method. 



Alternate System. We will assume that the plant- 

 ing distance is to be 24 feet apart, and then all stakes 

 on base line A B will be 24 feet apart. The alternate 

 stakes on this line will be for temporary use only. In 

 setting stakes on lines parallel with base A C, the tags 

 of one color should be spaced 24 feet apart, commencing 

 at the zero end. Tags of another color (for use on alter- 

 nate lines) should be spaced 24 feet apart, commencing 

 at a distance of 12 feet from the zero end of the chain. 



Rule: Alternate Method. The number of plants re- 

 quired per acre by this method is the same as that re- 

 quired by the "Square Method" with similar planting 

 distances. 



Planting Distances. Distance 



apart each way 



Standard Apples 25 to 30 feet 



Standard Pears. : 24 to 30 feet 



Dwarf Pear 12 to 15 feet 



Strong-growing Cherries 24 to 30 feet 



Duke and Morello Cherries. 18 to 24 feet 



Standard Plums and Prunes 24 to 30 feet 



Peaches and Nectarines 24 to 30 feet 



Apricots 24 to 30 feet 



Figs 25 to 40 feet 



Olives ' 30 to 35 feet 



Citrus trees 22 to 30 feet 



Walnuts 40 to 60 feet 



Almonds 24 to 30 feet 



Grapes 6x6, 6x12, 8x8 and 8x10 feet 



