. The American florist : a weekly journal for the trade. Floriculture; Florists. 196 The American Florist. Afar. S. times as good. The increased value of the soil and the possibility of having less weeds and aphis should alao be taken into consideration in estimating the benefits derived from this method of treatment. The methods employed for heating the soil have been either by the use of hot water or steam, with considerable varia- tion in the mode of applying the latter. The hot-water method requires the treat- ment of the soil previous to putting in of each crop, as only a few inches of su
. The American florist : a weekly journal for the trade. Floriculture; Florists. 196 The American Florist. Afar. S. times as good. The increased value of the soil and the possibility of having less weeds and aphis should alao be taken into consideration in estimating the benefits derived from this method of treatment. The methods employed for heating the soil have been either by the use of hot water or steam, with considerable varia- tion in the mode of applying the latter. The hot-water method requires the treat- ment of the soil previous to putting in of each crop, as only a few inches of sur- face soil are sufficiently heated by this method to kill the mycelium of the drop. The heating by steam is now done largely by perforated pipes and in some cases use is made of 2-inch porous tile, although this method is not so practic- able. The various contrivances made out of perforated pipe, varying from one to three inches in diameter and usually placed from seven to twelve inches apart, are made up into frames from ten to twenty feet or more in length and into any width desired. The size and number of the perforations vary much in different appliances. The methods generally adopted by let- tuce growers in heating their soil is to place the sterilizen on the surface of the bed. If the bed is twenty feet wide then it would be most convenient to have the sterilizer ten feet wide and twenty or thirty feet long. This is placed midway in the bed and the soil to the depth of one foot or more is dug up on either side and thrown up on top of the sterilizer. The steam ii then turned on and the soil heated. After sufficient steaming has taken place the pipes can be pulled out and made ready for the next treatment. The soil previously treated is covered up with old canvas and allowed to stand some hours, after which the top portion is shovelled back to where it was taken from. Not only is the one foot or fifteen inches of top soil heated, but the soil underneath the apparatus is e
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
