25 



this manure in small quantities in eonnection];witb potash. Though 

 very rich in nitrogen it gave a small increase in crop, apparently 

 because there was not potash enough present. 



SUMMARY OF WEATHER OBSERVATIONS. 



June 1st to Nov. 1st, 1890. 



*1.53 Days. 



As last year, the temperature at this station is more equable than 

 at our others. The thermometer runs neither so high nor so low as 

 at most. The smalluess of the rainfall is very noticeable during July 

 and August, — the most critical mouths for the crop — and especially 

 damaging upon a soil of this sandy character. 



RESULTS OF THE ADDITION OF NITROGEN TO 



Muriate Phosphoric 



Phosphoric of 

 Nothing. Acid. Potash. 

 _ 9 



Hard corn, bushels per acre, 4.1 .8 



Stover, pounds " -65 580 



Value of net average increment, 



Financial result, 



Acid and Avera; 

 Potash 



505 



age 

 ult. 



1-2.2 4.2 



308 332 



$3.77 

 .23 loss 



RESULTS OF THE ADDITION OF PHOSPHORIC ACID TO 



Nothing. 



Hard corn, bushels per acre, -3.8 

 Stover, pounds " -145 



Value of net average decrease, 



Financial result, 



