23S 



E.EPOKT ON CkOP PbODUCTION OF THB 



was divided into ten plats, wliich wore treated in accordance 

 with the diagram shown below. 



On tlie field where the experi- 

 ment was continued for four years, 

 each plat received the treatment as 

 indicated each year of the entire 

 time, with the excejjtion noted 

 under " Fertilizers used." 



Arrangements of Plats in 

 Onion Fertilizer Experi- 

 ments. 



No fertilizer. 



noo lbs. fertilizer per acre. 



FERTILIZEES USED. 



The fertilizer was applied annu- 

 ally. For three years it was com- 

 pounded in accordance with the 

 formula for some time so popular 

 with Long Island farmers, viz.: 

 four per ct. nitrogen, eight per ct. 

 phosphoric acid and ten per ct. 

 potash. In 1901 the potash was 

 changed to five per ct. 



Crimson clover was sown on the 

 Purdy field in August of 1900, 

 which grew to a height of from 

 four to six inches and was plowed 

 under the very last of November. W 

 tilizer was the only means employed 

 land, other than the usual cultivation, 

 applied to plats 6 to 10 of the Purdy 



ith this exception the fer- 

 of adding fertility to the 

 In 1901 no fertilizer was 

 field. 



LOCATION AND CONDITIONS OF THE EXrERIMENTS. 



The location of the experiments was at Florida, Orange county, 

 N. Y., a region where onion growing is an important industry. 

 The soil is the kind so highly regarded by onion growers, being 

 black, peaty and friable, with a water table about two feet below 

 the surface, except in the time of a severe drought. Such soil 

 appears to allow the continuous production of the same crop 

 Avithout the apjiearance of the unfaA'orable conditions which 



