| Show MOUNTAINS FAVOR THE FRUIT GROWER J. J Cecil Alter of Weather Bureau Bureau Bureau Bu Bu- Bu- Bu reau Compiles Interesting Data Upon Horticulture TELLS OF AIR AND FROSTS Delayed Sunshine Through Shade Retards Retards Retards Re Re- tards Buds Till After Season Season Season Sea Sea- son of Danger Tho Tile Value of or Mountains to Climatic Safety for tor the Fruit Grower is the title of nn fin article I h by J J. J Cecil Alter observer at th the thu Salt Luke Lake weather burem bu bu- rem In the tho report of oC district No 0 10 to tho the department of oC agriculture L Observer Alder lder seeks to contradict the old Idea that lu rugged mountain re regions To- To gions Jons arc are unfit for tor raising fruit lie ITe de declares lares that mountain orchards al although although although al- al though high arc protected by ranges from tram killing winds Ho says S1's The greatest weather enemy In all nil fruit districts east ast and west is the lato hate va vagrant spring frost Crost which occurs oc occurs occurs oc- oc curs under the immense high air pres pressures ures Mure that occasionally form Corm over the tho United States In the late spring These untimely frosts kill tho the fruit buds after after aft aft- er or all nature las apparently concluded that spring has hag safely arrived YH nn un h A great Influence for Cor good gOOl from Cram the mountains In favor ra of ot the fruit grower grow grow- er Is the tue shortening of oC the daylight that Is la the tho delaying of the tue morning sunshine an and the lie advancing advancing- of oC the evening shadows both of ot which are arc Important aids In delaying the openIng openIng opening open- open Ing of or fruit buds until spring has ac actually actually ac- ac arrived It will bo be seen that thal southerly exposures which otter offer no such shadow protection from mountains to the cast east and 1111 west will permit a much earlier budding budding- of or tho ho fruit and will thus increase the lie probability of ot loss by bv subsequent freezes In valleys val val- leys les with n n. north and trend this shadow protection for Cor orchards on the theca ca east cast t side of the tho valley alle amounts to from irom thirty minutes to two to hours in tho the morning This shortens the dally daily number number num num- ber her of or hours of sunshine on the orchards orchards orchards ards and consequently consequent delays the time timo of budding and blooming until a safer part of the season Influence nf or Air lr There Is still another arm of safety that th the mountain extends out over the orchards at Its foot toot one one that has blessed into fruitage thousands of oC acres amidst weather conditions that have ruined many less favored regions and and nd that Is air drainage the helpful of oC a steady stream eam or current current cur cur- rent of air which usual usually flows down own th the tho mountain slope all night ceasing on only I when tho the morning sun appears and changes chang the direction of or flow As soon as 5 darkness overspreads tho the valle valley valley val val- le ley in the evening o the cool air b begins be begins be- be gins Ins to soUle Into tho the lowest places and to become quiet Under a clear k It will gradually grow row cooler by radiation until rooming morning and for Cor this lea reason On the valley bottoms bottom where the quiet cool air settles at nl night bt are avoided by Gradually durIn during during dur dur- In ing the night the lower parts of or the valley alley fill cm with cold air and this dead- dead air district enlarges and creeps up the slop slopes s as aR the slowly cooling air all from the mountain flows lons down b by reason orIts of or its greater density Humidity anti ami Evaporation F. Finally the tho phenomenon of oC freezing freezing freez freez- ing the fruit buds or of ot frost formation formation formation forma forma- tion takes place in a quiet air at a temperature of or 3 32 degrees trees e only when the bud Is saturated with moisture and when there is considerable considerable consider consider- able moisture In lh the air to prevent the rapid escape of ot the tho bud moisture The noteworthy dryness of oC tho the air all which generally prevails pre In the tho Rocky nock Mountain states therefore of Itself acting alone is an Influence that has many times prevented pre the formation of ot frost Crost In the fruit buds tulls ev even n when the actual temperature of oC tho surrounding surrounding- dry 1 quiet air was several de degrees r es be below bc- bc low how freezing |
