coMPOsmoJT or toeests seowit ik cosjxnfCTioir with tield cbops. 121 



immemorial) ; and (B) one or more field crops raised after the 

 exploitation of higli forest, the new forest crop heing sown or 

 planted either simultaneously with the field crop or immediately 

 after it has been reaped (the Departmental system of toungya in 

 Burmah). 



A. 



Where a field crop is raised as soon as the forest has been cut 

 back for coppice, the component species should, ia the interests of 

 that crop, satisfy the following- conditions j — 



(i) The trees should not be capable of producing suckers. 



(ii) Thej should be able to grow up freely from the stool. 



(iii) They should be deep-rooted, so as to leave the top layer of 

 ihe soil available as much as possible for the field crop. 



(iv) They should not have too dense a root-apparatus. 



(v) Their leaves should decompose easily and form a good 

 humus. 



(vi) Their cover should not be too dense^ if standards are re- 

 quired to afford shelter to the field crop. 



(vii) The individuals composing the forest should not be too 

 close together, otherwise the coppice wiU be too thick for the pros- 

 perous growth of the field crop. Hence a pure forest wiU generally 

 be better than a mixed one. 



B. 



If the high forest regime is to, be adopted and one or more field 

 crops are to be raised immediately after the forest has been cleared,, 

 the component species should, in the interests of the field crop, 

 satisfy the following conditions : — 



(i) The trees should not be capable of producing suckers. 



(ii) Their leaves should decompose easily and form a gQod 

 humus. 



(iii) They should be hardy enough to do without shelter. 



(iv) The young forest crop should be able to grow up rapidlyv 

 so as not to allow the soil to deteriorate under too long exposure. 



(v) The species used should be capable of being raised artifici- 

 ally with ease. 



Provided the five preceding conditions are satisfied, tiie forest 

 should be so constituted as to yield the largest and most valuable 

 outturn just as in ihe case of forests grown exclusively for the 

 market. 



