1£6 



SCHOOL AND HOME GARDENING 



8. Heavy Fertilizing. — Try the effects of more fertilizer 

 than usual, keeping account of the added cost. Consider this 

 in connection with the yield and determine whether hea'i7 

 applications are profitable (Figs. 72 and 73). 



g. Lime for Potatoes. — It is generally believed that lime 

 1 2 3 



Fia. 73. — A scheme for experimental plots with trials of four east and west 

 and three north and south. Suppose the experiment is with alfalfa 1-1, red clover 

 2-2, and crimson clover 3-3, Across these plots let the cross strip A- A be both limed 

 and inoculated properly for each kind; let BS have lime only; let C-C have inocu- 

 lation only; let D-D have neither lime nor inoculation. Otherwise the plots will be 

 treated alike. 



is harmful to potatoes by making them more scabby if the 

 disease is present in the seed or the soil. Let one row be 

 limed and another not limed, 



10, Effect of Treatment for Potato Scab. — In connec- 

 tion with the preceding trial let another be made testing tbc 

 value of treating seed potatoes with formalin before, planting 



