Tff USE OF MANURES. 67 



Of course, a further application of guano without 

 the addition of this deficient element will prove a 

 failure. The fault- is not in the fertilizer, but in not 

 supplying other material. 



149. It is customary to mix guano with other fer- 

 tilizers not so rich in ammonia, and thus have a ma- 

 nure that can be used profitably for almost any crop. 

 A large number of " manipulated guanos " are sold, 

 and where the manipulation, or mixing with other fer- 

 tilizers, has been fairly and honestly done, such mix- 

 tures are highly beneficial and economical. 



150. Peruvian guano and other strongly nitro- 

 genous manures should never be placed in imme- 

 diate contact with the seed, because the ammonia 

 given off is very caustic, and will kill the seed-germ. 

 It may be placed under the seed with a few inches 

 of earth between, or at the side, the former being 

 preferable. 



151. A mixture of one hundred pounds of Peru- 

 vian guano with two hundred of a good superphos- 

 phate per acre gives excellent results. The ingre- 

 dients should be thoroughly mixed, sown broadcast, 

 and turned in with the wheat or other grain, or they 

 may be placed under the bed on which cotton or 

 corn is to be planted. In wheat-growing States, 

 drills are used both for planting the wheat and for 

 depositing the guano and superphosphate. Some 

 farmers prefer scattering the fertilizer broadcast, 

 whether for cotton, wheat, or other crop. 



152. It will not do to mix guano with fresh ashes 



