CIHM Microfiche Series ({Monographs) ICMH Collection de microfiches (monographies) Canadian Institute for Historical Microreproductions / Institut Canadian de microreproductions historiques Technical and Bibliographic Notes / Notes techniques et bibliographiques The Institute has attempted to obtain the best original copy available for filming. Features of this copy which may be bibliographically unique, which may alter any of the images in the reproduction, or which may significantly change the usual method of filming are checked below. □ Coloured covers / Couverture de couleur □ Covers damaged / Couverture endommagte □ Covers restored and/or laminated / Couverture restaur^e et/ou pellicula I I Cover title missing / Le tit'e de couverture manque I I Coloured maps / Cartes gtographiques en couleur □ Coloured ink (i.e. other than blue or black) / Encre de couleur (i.e. autre que bleue ou noire) I I Coloured plates and/or illustrations / a D D Planches et/ou illustrations en couleur Bound with other material / Reli^ avec d'autres documents Only edition available / Seule Edition disponible Tight binding may cause shadows or distortion along interior margin / La reliure sen-6e peut causer de I'ombre ou de la distorsion le long de la marge int^rieure. Blank leaves added during restorations may appear within the text. Whenever possible, these have been omitted from filming / Use peut que certaines pages blanches ajoutdes lors d'une restauration apparaissent dans le texte, mais, lorsque cela 6tait possible, ces pages n'ont pas 6X6 film^s. Additional comments / Commentaires suppl^mentaires: This item is f llnwd at the reduction ratio chaelwd bolow / Ca documant aat filing au taux da rMuetion indiqu* ei-dasaoua. L'institut a microfilm^ le meilleur exemplaire qu'il lui a 6t6 possible de se procurer. Les details de cet exem- plaire qui sont peut-dtre uniques du point de vue bibli- ographique, qui peuvent modifier une image reproduite, ou qui peuvent exiger une modification dans la metho- ds normale de filmage sont indiqute ci-dessous. I I Coloured pages / Pages de couleur I I Pages damaged / Pages endommag^s D D D D D D Pages restored and/or laminated / Pages restaurtes et/ou pellicul6es Pages discoloured, stained or foxed / Pages d^coiortes, tachet^s ou piqudes Pages detached / Pages d^tach^es Showthrough / Transparence Quality of print varies / Quality in^gaie de I'impression Includes supplementary material / Comprend du materiel suppi^mentaire Pages wholly or partially obscured by errata slips, tissues, etc., have been refilmed to ensure the best possible image / Les pages totalement ou partiellement obscurcies par un feuillet d'errata, une pelure, etc., ont 6\6 i\\m6es k nouveau de fa^on ^ obtenir la meilleure image possible. Opposing pages with varying colouration or discolourations are filmed twice to ensure the best possible image / Les pages s'opposant ayant des colorations variables ou des decolorations sont film^s deux fois afin d'obtenir la meilleure image possible. lOx 14x 18x 22x 26x 30x y 12x Itx 20x 24x 28x 32x Th« copy fllmtd her* his bt«n reproductd thanki to the ganaroaity of: Library Agricultura Canada The Imegea appeering here are the «>•« ««ualjty poaaible conaldering the coridltlon and legibility of the original copy and In keeping with the filming contract apeclflcetlona. Original coplea In printed paper covera are filmed beginning with the front cover and ending on the laat page with a printed or llluatratad imP/««- alon, or the back cover when appropriate. All other original coplea are filmed beginning on the firat page with a printed or llluatratad Imprea- alon. and ending on the laat page with a printed or illuatrated Impreaalon. The laat recorded frame on each microfiche ahall contain the •ymbol -*^ (meaning "CCN- TINUED"), or the aymbol V (meaning tno i, whichever appllea. Mapa. platea. charta, etc.. may be filmed at different reduction ratloa. Thoae too large to be entirely Included In one expoaure are filmed beginning In the upper left hand corner, left to right and top to bottom, aa many framea aa required. The following diegrama llluatrate tha method: r L'txtmplalrt film* fut reproduit grlc« A Is gAnArosiU d«: BIbliothiqu* Agriculturt Canada Lm images sulvantss ont 4t4 reproduites svsc Is plus grand toln. compts tsnu ds Is condition st ds Is nsttst* ds I'sxsmplsirs film*, st sn conformit* svsc Iss conditions du contrst ds filmsgs. Lss sxsmplslrss orlginsux dont is couvsrturs sn psplsr stt imprimis sont fllmis sn commsn^snt psr Is prsmisr pist st sn tsrminsnt soit psr is dsrnlArs psgs qui comports uns smprsints d'imprssslon ou d'lilustrstlon, solt psr Is sseond pist, sslon Is CSS. Tous Iss sutrss sxsmplslrss orlginsux tont filmis sn commsn5snt psr is prsmiirs psgs qui comports uns smprsints d'imprsstion ou d'iliustrstion st sn tsrminsnt psr ia dsrnlAre psgs qui comports uns tslls smprsints. Un dss symboiss suivants apparaUra sur ia dsrni«rs Imsgs ds chsqus mlcroflciis, sslon Is ess: Is symbols -^slgnifis "A SUIVRE". is symbols V signifis "FIN". Lss csrtss. pisnchss. tabissux. stc. psuvsnt »trs fiimis i dss taux ds rMuction diff«rsnu. Lorsqus Is documsnt sst trop grsnd pour «trs rsprodult sn un ssul clich«. il sst film* i psrtir do i'sngis supirisur gauchs, ds gsuchs i droits, •t ds hsut sn bas. sn prsnsnt is nombrs d'imsgss n«cssssirs. Lss diagrammss suivsnts iliuttrsnt is mithods. 2 3 5 6 •MOOCOPV nSOlUTION TBT CHART (ANSI and ISO TEST CHART No. 2| 13.6 12^ |2j2 _^ APPLIED IM/IGE Inc 5^. 16W East Ha.n Street S^S Rochester, N««r York 1*609 USA r^SS f'6) *82 - 0300 - Phone ^B (716) 288 - 5989 - Fo. lit ' CIBCUIAR No. 19 rftpcEivir) UK'- A THE MANURIAL VALUE OF SEAWEED BY Fll.WK T. SlItTT, D.Sc. Itonnuloii Ch, in !.if. S..ii\v<..>-..ntiiill.v 11 |.„tnlillll foo.l. .o tllllf it iiiiirlit 111' tiTiacd ,\ (Min|ilctc> iiiamirc. Krrsli sraw.,..! U un.loul,l..,||,v ii w.it.Ty inmnirc. .•ont^iininir from (!.-. to DO prr .vnt ot WMt.r nii.l it w fi.is f,„'t, no .|o„l,t. ftli.. .Mrti.w iH.injr ii morr or !.-. ,.xi),.nMV.. lr:,tur.O tiuK limits its us,, to tiios,. living' n.or.. or Irss ,-\ to tli.. -liorr A nirf of l.iN us.Irss wMt.'r in.i.v !«■ (fot rid of l,,v .lr>inff il,.. s,,uv.-.mI u„ tin- 1...,,. I, for a f.»' .Ins Im torf Iniiilniii: to the t.inii. But .lotwitlistaiuliii^' its hruv prnviitM^.. of w.,t,.r s,.m- v....,l .•oinimrcs .piitf fnvouniiily, wrifflit for wri^-ht. witli l„iriivanl .nainirr an w.H hroiiuht nut l.v the niirtlvi-* »lviM. I)iit It will nl«) Ik. iinteil t|i,it th.-.v urc .•*|w..Miill.v ri<'h in nitroK.-n. S,.,.wihmI iim.v th.-nfori' !«■ i-onMiilcrnl a iiitro-|...t4i*..i<' fortilir.i-r. It i^ fiirthor worthy ..f not.- that «.aw.H^I NU|>|>lii>» n con^iarrahl.. amount of v.^.tuLli- owini.- inatt«'r, whi.h l.a* a (Iwtinc't yahu' for iniToasinir tlio soU'h store of liuniim. The diff..r..ti.-tw in comiHMition Mwet'ii the vari.-tiiM nia.v in part Ik. awiuntwl tor by the ntairo of growth or maturity at tl.o time of .olUvtioii. and in tl.i- ponn.vtion it IS interpstinur to not.- that for «.voral varieties collections nmde durinif the winter have shown ii higher |iota*h eontent than samples taken in sununer. Seawivd that has lM>eti allowed to r<'main exin.sHl on the seashore for any Kront lentrth of time is very |x)or as eompannl with the fresh material. The manurial yalm- of soaw.^l is greatly enhanced l.y its ready decomposition in the SOI : most vaneth^s .|uiekly d«-ay liboratir.»f their plant food in forms at once nvailal.Ie for plant growth. It is essentially therefore of tlu' nature of a (|uickly n.-tinc forciiiK nuinure. It would h" unnwessary to eomix.st it. though probably li"ttle loss would ensue if comiH.stcd with muck or peat and K.">d loam to absorb ai.d hold the deeomposition products. providinR the heap were protected from leachiiiK rains. O.i the whole, the best plan is to apply the seawinnl dir.><-t to the soil and if the time of year |)ermits. to lightly plounh it under or work it into the soil with a heavy disc We do not think, however, that if workiiiK int.. the soil were impracticable any Rreat OS8 of fertilizing constituents would follow from the *,,readiiiK of the seawe,Mlon the and in the fall ..r winter, unless the rains were heavy and continuous and soil very iKht. In this matter, the farmer would be guided very laruely by the question of abour and abundaiicy of the seawwl. renieniberinir that in the s,iil the losses will Ih' less than on the soil. Seaweed can U employed for all classes of crop.s, thouKh it will Ih- found most useful for roots. vcRetables and those with an abundance of folia«e. since it is essen- tially a nitroifcnous and potassic manure. It has ^iven ex<-(.|leiit results a* a top dressing for grass lands. encouraRinpr the growth of clover more particularly Its comiwsitKm suggests that if a more complete fertilizer is desired it should be supple- mented by suiM-rphosphate. basic slag or bone meal. Seawewl gives i's best returns on moderately light loams that are warm and moist and its poorest heavy clays. The use of seawwd as a fertilizer djites back to historic t" . , the upkeep of the soil fertility has l«.en generally and practica the old world and the new by farmers residing not too far dist.- i Seaweed occurs on both our Atlantic and Pacific coasts (more t' -• the latter) and may be collected in large amounts at little i „„ ,„ heaches. where it is thrown up by storms at times i„ prodigous quantities. It can also be colhrtcd in boats from ro.-ks ami Hoating masses not far from the shore There are many varieties, some arc „uite small, others attain large proportions but all are valuable, though naturally differing somewhat in composition. i>ii wet. illdraiiied. ■' value for d in both ^ coast line. .robably on on many sea