File:Luther Burbank- his methods and discoveries and their practical application. Prepared from his original field notes covering more than 100,000 experiments made during forty years devoted to plant (14804891623).jpg

Identifier: lutherburbankhis04burbuoft (find matches)
Title: Luther Burbank: his methods and discoveries and their practical application. Prepared from his original field notes covering more than 100,000 experiments made during forty years devoted to plant improvement, with the assistance of the Luther Burbank Society and its entire membership, under the editorial direction of John Whitson and Robert John and Henry Smith Williams
Year: 1914 (1910s)
Authors: Burbank, Luther, 1849-1926 John, Robert Whitson, John Williams, Henry Smith, 1863-1943 Luther Burbank Society
Subjects: Plant-breeding
Publisher: New York Luther Burbank Press
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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achout into the nutrient earth and take up the chem-icals in solution that are part of the materials forthe building of branch and leaf and flower andfruit alike. But there is danger that the root sys-tem may not develop in the best manner, and thereis obvious need that the soil into which the rootspenetrate should not be depleted of its nourishingproperties. As to the manner of development of the rootsystem, of course it is too late to make radicalchanges if we are dealing with an old tree. Withyoung trees just starting growth or recently trans-planted much may be done, as will be pointed outpresently. But with the old tree all that can beaccomplished is to see that the root already in isbeing given a fair chance. Attention to the Commissary Department To this end the ground about the tree shouldbe cultivated with plow or spade, even at thehazard of destroying a certain number of super-ficial rootlets. The grass and weeds that havebeen permitted to spring up in the neglected or- (46)
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A Bunch of Selected Seedlings This picture shows a bunch of selected seedlings that have been carefuU,, dug in the proving <-^„f;.^/; ;.„, readu for transportation and final disposition. It u ill be seen thai care has been taken to dig up the entire root without injurg. Seedlings thus carefullg transplanted will lose veru little in the process, and are almost sure to continue growth if properlii cultivated after transplantation. LUTHER BURBANK chard sap the ground and take the nourishmentthat the tree imperatively needs. But if the sur-face soil is turned under this vegetable matter willin itself constitute a fertilizer. Unless the soil isunusually rich this should be supplemented withartificial fertilizers, of which nitrates, phosphatesand complete mineral fertilizers often appear tohave the best effect in rejuvenating an old orchard. In case the soil is a sandy loam, subject to rapidleaching, it may be desirable to sow a so-calledcover crop to prevent the too rapid washingawa

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