. A guide to the experimental farms and stations ... vide bloom without great subsequent 200 varieties of annuals, biennials, and perennials are beinggrown. Different varieties of irises and roses are among themost important of the perennials. Success is attending the trial of hardy shrubs and trees forornamental purposes. Cotoneasters, spireas, loniceras andsyringas do well, while Rocky Mountain blue spruce, Black Hillspruce, white spruce, ash and elm have shown their adaptabilityto local conditions. Cultural Work. The cultivation of land where precipitation falls below 16inches per
. A guide to the experimental farms and stations ... vide bloom without great subsequent 200 varieties of annuals, biennials, and perennials are beinggrown. Different varieties of irises and roses are among themost important of the perennials. Success is attending the trial of hardy shrubs and trees forornamental purposes. Cotoneasters, spireas, loniceras andsyringas do well, while Rocky Mountain blue spruce, Black Hillspruce, white spruce, ash and elm have shown their adaptabilityto local conditions. Cultural Work. The cultivation of land where precipitation falls below 16inches per annum, on an average over a number of years, mustpresent problems of a very different kind from those arisingwhere precipitation is double that amount. The reason summer-fallow does not enter more frequently into our system is thatthis moisture falls, for the most part, during the growing seasonand that the soil is well equipped for holding moisture. Thehumus that so fortunately holds moisture tends also to hold the DOMINION EXPERIMENTAL FARMS 123. 124 DOMINION EXPERIMENTAL FARMS soil open and loose after ploughing. We have found that theuse of the surface packer after the plough and again after theseed drill will give big returns. Packing after the drill costsabout 25 cents per acre and, in an average of 28 experiments,has resulted in increasing the value of the crop by $ per acre. Harrowing after the grain is up has given good results intwo ways; first by decreasing weeds, second by increasing a means of weed control and also as a factor in moistureconservation, discing behind the binder has been found effective. Spring wheat has been found to be less suitable to thisclimate than is winter wheat, taking one year with wheat has given best results sown about the middle ofAugust on breaking at the rate of about IJ bushels per Kharkof strain of Turkey Red has given the largestreturns. Of the spring wheats, Marquis and Huron are amongthe best
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