Farmyard Manure. 



247 



Table .s'liowing Composition of Experimental Heap (No, III.), fresli Farmyard 

 Manure, spread, at different periods of the Year. Calculated dry. 



When ! 



put up. I April 30tb, Aug. 23rd, 



Nov. 3rd, I 1855. i 1855. 



1854. I I 



Kov. 15tb, 

 1855. 



*Solublc organic matters .. 



Solubk' inorganic matters 

 flnsoluble organic matters 



Insoluble mineral matters 



,100-00 



♦Containing nitrogen 



Equal to ammonia 



fContaining nitrogen 



Equal to ammonia 



Total amount of nitrogen 



Equal to ammonia 



Ammonia in free state 



Ammonia in form of salts, easily decom-] 

 posed by quicklime J 



Total amount of organic matters . . 



Total amount of mineral substances 



•44 



•4G 



•90 

 •30 

 •10 



•26 



•48 

 '.52 



1-64 



2^14 



35 •SO 



60-92 



1-21 



1-69 



28-86 



68-24 



100-00 100-00 



•42 

 •51 

 2-28 

 2-76 

 2-70 

 3-27 

 •05 



-225 



63-17 

 36-83 



•20 

 •24 

 1-17 

 1-41 

 1-37 

 1-65 

 -040 



•171 



S6^94 

 f.3-06 



100-00 



•10 



•12 

 P09 

 1-32 

 1-19 

 1^44 



-0017 



•087 



30-07 

 69-93 



small proportion of the original fertilizing matters is left 

 behind. 



Thu.s the soluble organic matters sink from 7"o3 per cent, to 

 5 8 per cent, in the course of six months, to 1*64 per cent, in 

 nine months, and to 1*21 per cent, in twelve months. With this 

 loss in soluble organic matters the percentage of nitrogen, present 

 in the form of soluble compounds, gradually sinks from '44 per 

 cent, to '10 per cent. That this loss in nitrogen is not entirely 

 due to the evaporation of ammonia, is shown In' the simultaneous 

 diminution of the amount of soluble inorganic matters, which 

 became reduced from 4'55 per cent, to 1-G9. 



Still more conspicuous is the loss in insoluble organic matters. 

 Thus we have in the fresh dry manure 7(M5 percent, of insoluble 

 organic matters. After a lapse of si.x months only 57"37 per 

 cent, are left behind ; after nine montlis but o5"3 per cent., and 

 after twelve months merely 2JS'<S6 per cent. 



iSlmilar striking dillerences in the comjiositicm of the manure 

 at the stated periods will manifest themselves on an attentive 

 perusal of the foregoing tabulated analytical results. They all 

 tend to prove tlie enormous waste which is incurred l)y keeping 

 for a lengtliy period farmyard maimre exjiosed in thin layers to 

 the influence of the wealhur. But I must hasten to ascertain the 

 precise loss in tlie various constituents which this manure sus- 

 tained in the course of a year. 



Tills loss will become apparent by an inspection of the fol- 



