626 SOILS: PMOPJEBTIES AND MANAGEMENT 



stubble, and aftermath on the soil When a rotation of 

 this kind is used it is better either to supply organic 

 matter in other ways, or to alter or break the rotation in 

 such a manner as to admit of a more advantageous use 

 of green crops. 



Where trucking crops are grown and no very definite 

 rotation is adhered to, green-manuring is easier. It is 

 especially facilitated when cover crops are grown, as in 

 orchards. Soiling operations also favor the easy and 

 profitable use of green manures. In general it may be 

 said that the organic matter obtained from such a source 

 should be supplemented by farmyard manures where 

 possible, A better balanced and richer soil humus is 

 more likely to result. 



