62 



TALKS ON MANURES. 



OONTBNTS or A HEAP OF MANUUB AT DIFFEUENT TERIODS. 



COVBB. 



FERMENTED UNUEB 



Total weight of manure in heap... 



Water in the he:i|) of manure 



Total orj.'anic mutter 



Total inorganic mutter 



Total nitrogen iu heap 



Total 8olul)lc organic matter 



Insoluble organic matter 



Solubli' mineral matter 



Insolul)le niinerul mutter 



Nitrogen in soluble matti-r 



Nitr()g(!n in in><oluble mutter 



Total dry matter in heap ' 



iVhen put 



up. A(W.3. 



0>s. 



lO.OOO 



fi.«17 



•2M4 



559 



ei..-} 



248 



2,576 



15t 



•105 



14.9 



49.4 



3.:it53 



April no. 



S>8. 



4.960 



2,822 



1,400 



G46 



59 



2.10 



1,260 



lti7 



479 



13.4 



45.6 



2,038 



Aug. 23. Nov. 15. 



lbs. 

 4,000 

 1.737 

 1,205 

 1,057 

 50.8 

 165 

 1,040 

 122 

 ft35 

 10.4 

 40.4 

 2,263 



lbs. 

 3,790 

 1.579 

 1,253 

 958 

 57.2 

 203.5 

 1.049 

 168 

 790 

 15.9 

 41.3 

 2,211 



It will be seen that the heap of manure kept under cover con- 

 tained, on the IJOlli of April, Uss soluble ori^anic matter, Icks soluble 

 mineral mutter, lt\is soluble nitrojjciious matter, and kss total ni- 

 trosren than tbe heap of manure exposed to tlio weather. This is 

 precisely what I sliould have expected. The lieap of ntanure in 

 tbe shed probably fermented more r ipidly than the heap out of 

 doors, aiitl there was not water eno-.ii:h in the manure to retain 

 the carbonate of ammonia, or to favor the production o' organic 

 acids. T?ie Ji^ap teas too dry. If it could have received enough of 

 the liquid from the stables to have kept it moderately moist, the 

 result would have been very ditrercnt. 



We will i>ostpone furtlier cimsideration of this point at oresent, 

 and look at the results of another of Dr. Voelcker's interesting 

 exi»erlments. 



Dr. Y(elcker wished to ascertain the elfeet of three common 

 inctlidds of manairing manun : 



1st. Keeping it in a /(€7^ in th(3 open air i:i the barn-yard, or 

 field. 



2d. Keeping it in a Jieap under cover in a shed. 



3d. Keeping it spread o'/t over the barn-yard. 



" You say these are common methods of managing manure," 

 remarked the Deacon, " but I never knew any one in this country 

 take the trouble to spread manure over the yard." 



" Perhaps not," I replied, " but you have known a good many 

 farmers who adopt this very method of keeping their manure. 

 They do not spread it — but they let it lie spread out over the 

 yards, just wherever it happens to be." 



Let us see what the etfect of this treatment is on the composi- 

 tion and value of the manure. 



We have examined the cflfect of keeping manure in a heaj) in 



