194 PLANTS FOR GREEN MANURING. 



soils except those which contain lime. The frost 

 should be permitted to touch them before they are 

 ploughed in. 



Buckwheat is excellent upon sandy, poor land, if 

 used while about knee high. 



Ri/e is suited to sandy land, but is inferior to 

 buckwheat. 



Turnips are excellent on almost all soils. 



Red clover is a very valuable crop for heavy land, 

 as its roots penetrate deeply, and thoroughly loosen 

 the earth. 



Spurry is valuable for sandy soils. It grows very 

 fast, and two or three crops can often be secured in 

 a season. 



Some substances are applied as green manure 

 which are not grown upon the soil ; such as straw, 

 muck, tan, sawdust, etc. These should be partially 

 decomposed before application ; some of them con- 

 taining injurious qualities, in the crude state, as 

 well as those that are beneficial. In the use of 

 litter for the barn, those materials should be used 

 which will produce the best result upon the land to 

 which they are to be applied. Thus the cultivator, 

 in the manufacture of his barn-yard manure, can 

 combine those substances most needful to his soil, 

 and to the life of the plant which he desires to 

 cultivate. 



The fruit-grower should not lose sight of the 

 value of liquid manure, for it is particularly rich in 



