Piute County News | 1948-03-05 | Page 4 | Accelerates Tree Growth by Purified Steaming

accelerates tree growth by purified steaming experiments by J A D maedonald macdonald of ill the scottish forestry commis commission s ton indicate the growth of tree seedlings in nurseries may be greatly accelerated if the ground Is purified by steaming in one corner comer 0 of f the commissions acre nursery at Tull lallan allan scotland macdonald has run a series of steam pipes pipe from rom a donkey engine type of boiler boll er in the ground chosen for sterilization the pipes are burled buried to a depth of three to four feet the tha toll soft Is covered with tarpaulins to conserve the warmth and the steam Is released into the soli soil giving a heat at of more than degrees the boiling of the soll soil continues for 20 minutes to one half an hour through this method macdonald claims to have speeded up seedling height growth from less than one inch to more than three inches per year ile he Is continuing his experiments however to be sure that no other factors are involved I 1