. Bulletin (Pennsylvania Department of Forests and Waters), no. 46-50. Forests and forestry. 14 a proper seed-bed is easily saved in the subsequent working of those beds. Furthermore, the proper conditioning of the seed-bed may make a difference of many thousands in the prospective stands of tree seedlings. HOW THE SEED-BEDS ARE LAID OUT The actual laying out of the beds is done with the same care and exactitude. After the soil is thoroughly prepared, it is the practice at the Clearfield nursery first to stake out the beds. Four feet has been found to be the most convenient width for these, an
. Bulletin (Pennsylvania Department of Forests and Waters), no. 46-50. Forests and forestry. 14 a proper seed-bed is easily saved in the subsequent working of those beds. Furthermore, the proper conditioning of the seed-bed may make a difference of many thousands in the prospective stands of tree seedlings. HOW THE SEED-BEDS ARE LAID OUT The actual laying out of the beds is done with the same care and exactitude. After the soil is thoroughly prepared, it is the practice at the Clearfield nursery first to stake out the beds. Four feet has been found to be the most convenient width for these, and is tlie standard width of all seed-beds in the Pennsylvania State forest tree nurseries. This is the maximum width for convenient and easy liand-weeding. Formerly seed-beds were made 4 x 25 feet in size, thus giving a unit area of 100 square feet to the bed. The practice at the Clearfield nursery is now to make the beds four feet wide and as long as the planting space permits. The longest rows there are about 280 feet. The paths between beds are two and a half feet wide. The alh\vs at the ends of the rows may be of various Avidths, but sliould not be less than nine feet wide. Tliere must be sufifieient room in these alleys to permit the piling of shades and other ma- terials, and the free passage of motor trucks, teams, carts, etc. PERMANENT MARKERS SHOULD BE USED When l)eds are to !)e used year after year, the corners should be permanently marked and numbered with iron pins, set just beyond the true corners of tlie nursery beds, across the end alleys or alonj]; the nursery fence, where the })ins are out of the way of cultivation. When a line is drawn connecting two of tliese opposite corner pins, the line marks one side of the nursery bed. Where there are many small beds composing one long row, permanent pins are set in the same way along the other two sides of the nursery, so that when lines are drawn between two opi)osite pins, they form the end sides of the nursery beds.
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