130 The Farm Woodlot 



WOODLOT PLANTATIONS IN MIXTURE 



When it becomes necessary to establish a new woodlot 

 by planting, then it may be desirable to plant two or 

 more species in mixture. A clear distinction must 

 be made between woodlot plantations and wind- 

 break plantations. The former are made primarily for 

 the production of fuel and farm timber rather than for 

 protection, and species are selected that meet these require- 

 ments. For windbreak plantations, the prime object is 

 to afford an effective barrier against the force of the wind, 

 and trees are selected with reference to their 'vigor, size, 

 density of crown and immunity from climatic injuries 

 rather than to the quantity and quality of wood produced. 

 It sometimes is convenient to have the woodlot serve as a 

 windbreak for the farmstead, but as a rule profitable wood- 

 lot species are poor windbreak trees. 



Mixtures suitable for general prairie planting where con- 

 ditions vary from sub-arid to river-bottom lands 



For planting a woodlot the following mixtures are 

 suggested as useful ones : 



I. Green ash and hackberry 4X4 feet, the species 

 alternating in rows. Hackberry will crowd the ash, 

 causing it to produce good height growth. At the same 

 time it will furnish some fuel from the thinnings. The 

 hackberry should be removed as soon as it begins to 

 interfere and cause any injury to the ash, leaving the ash 

 spaced regularly 8X8 feet. 



II. Green ash and white elm 6X6 feet in equal mixture 

 alternating in rows. The elm forces the ash into well- 



