270 GUANO. 



At Cunnersdorf, 100 lbs. of guano gave an increase of 

 produce in cereals, potatoes, and clover, containing — 



Nitrogen Potasli Phosphoric acid Lime 

 lbs. lbs. lbs. lbs. 



Increase of produce . 9'2 16"1 3-5 3-6 



The guano contained . 13-0 2-0 12-0 12-0 



More in the manure . 3*8 — 8-5 8'4 less in the crops 



Less in the manure . — 14:-1 — — more in the crops 



At Oberbobritzsch, 100 lbs. of guano gave an increase of 

 produce, containing — 



Nitrogen Potash Phosphoric acid Lime 

 lbs. lbs. lbs. lbs. 



Increase of produce .23-0 15-5 6-1 16-9 



The guano contained. 13-0 2-0 12-0 12-0 



More in the manure . — — 5'9 — less in the crops 



Less in the manure . 10"0 13"5 — 4'9 more in the crops 



The difference in the effect produced by the guano on 

 the two fields is most strikingly exhibited by these tables. 

 At Cunnersdorf the produce reaped contained 30 per 

 cent, less, at Oberbobritzsch 77 per cent, more nitrogen 

 than the manure apphed. 



