Artificial manures; their chemical selection and scientific application to agriculture . may be procured from J. M. Fleury, 91 Rue deCrimee k la Villette, Paris. 306 EMPLOYMENT OF CHEMICAL MANURES 307 produce its full effects, each filament of the root must be able toabsorb at the same time all the substances that enter into its com-position, and this result cannot bo obtained unless the mixture ishomogeneous. The spreading of chemical manures also requiresparticular care. The best way is, unquestionably, to make use ofone of the excellent machines that we now possess for spreadingpulverised m
Artificial manures; their chemical selection and scientific application to agriculture . may be procured from J. M. Fleury, 91 Rue deCrimee k la Villette, Paris. 306 EMPLOYMENT OF CHEMICAL MANURES 307 produce its full effects, each filament of the root must be able toabsorb at the same time all the substances that enter into its com-position, and this result cannot bo obtained unless the mixture ishomogeneous. The spreading of chemical manures also requiresparticular care. The best way is, unquestionably, to make use ofone of the excellent machines that we now possess for spreadingpulverised manure, for with them the result leaves nothing to bedesired. When I add that if the dressing be properly performed it willincrease the yield by two or three bushels of grain per acre, youwill see how important it is to use the greatest care. For those who do not possess a machine, and who have toeffect this operation by hand, the best way is to mix the manurewith an equal amount of fine dry earth, and throw it broadcastover the land like seed. When this method is followed the manure. Fig. 7. must first be divided into a certain number of little heaps, whichare distributed over the plots of ground for which they are we have to deal with cereals, peas or beans, the manure mustbe spread after the last ploughing, and its exact division over thesurface of the soil ensured by means of careful harrowing. For plants with tap roots which burrow to a great depth, it ispreferable to spread the manure twice, half after the first plough-ing and half after the last. For vines I have found the followingmethod best: The manure is spread upon the soil around eachvine; it is then well dug into the ground with the spade or withthe plough. Vines ought to be manured in the autumn. For hayI believe it is better to spread half the manure in the autumn andhalf in the spring, after the first cutting. When we spread themanure broadcast one precaution is necessary, viz., to work in acalm day,
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