55 



in the form of surface applications, were tested in conjunction with 

 spraying. Briefly, they are as follows: 



(1) Spring and fall applications of bonemeal at the rate of 1000 

 pounds per acre, the fall application giving the best results. 



(2) The application of slaked lime at the rate of 1000 pounds 

 per acre. No noticeable response was secured from this treatment. 



(3) The application of nitrate of soda at the rate of 100 pounds 

 per acre in the spring after active growth had begun, and again in 

 summer. This gave good results in the form of increased growth 

 of the grass. 



(4) The application of a complete commercial fertilizer in the 

 fall. 



(5) The use of well-rotted stable manure applied in the fall, 

 and the coarse material raked off the following spring. 



The results seem to indicate rather conclusively that the average 

 lawn will require some form of fertilization to quicken grass growth 

 and heal the turf after the dandelions and other weeds have been 

 killed out. 2 When well-rotted stable manure free from weed seeds 

 cannot be obtained, perhaps the best course to follow would be to 

 use a liberal quantity of complete commercial fertilizer in the fall 

 after spraying and apply ground bone during the following two 

 years. 



SEEDING. 



The renovation of lawns by heavy reseeding with grass seed or 

 grass seed containing a little white clover, to thicken the turf and 

 crowd out the dandelions, has been reported as having given good 

 success in some cases. 



Following the use of the spray solution in our experiments, it 

 was found quite necessary to reseed the scars or bare spots in the 

 turf left by the dead weeds. For this purpose a mixture of equal 

 parts of Kentucky blue grass and red top grass seed was used. This 

 was sown on the sprayed lawn, and well raked into the bare spots, 

 after which a dressing of compost was applied. The success attained 

 by this method seems to warrant the following recommendation: 

 Keep at hand, in a dry place, a supply of grass seed mixture contain- 

 ing equal parts of Kentucky blue grass and redtop grass seed known 



2 The subject of lawn fertilization is fully discussed in U. S. Dept. Agr. Farmers' 

 Bulletin No. 494, which will be sent free from the Department, Washington, D. C. 



