ses MORE ABOUT 
FERTILIZERS 
In mixing fertilizers, care must be taken not 
to mix those which injure one another; thus 
nitrate of soda and muriate of potash, both 
take up moisture from the air quite readily, 
and when mixed with other substances are 
liable to make the whole mass pasty, or even to 
run together and bake in the bag; these should 
be mixed but a short time before they are to be 
applied. Nitrate of soda and acid phosphate, 
when they are mixed and allowed tostand, be- 
come damp and act chemically upon each other, 
and the result is loss of fertilizer elements into 
the air; the same is true when basic slag and 
sulphate of ammonia are mixed together. 
We are frequently advised to apply fertilizers 
to the crop while itis growing. Nitrate of soda 
is generally used in this way, and to aid in 
spreading it, it is often mixed with acid phos- 
phate. Now both of these substances, as well 
as muriate and sulphate of potash, are likely 
to burn the foliage of plants with which they 
come in contact; hence, broadcasting these over 
growing plants on a damp morning is liable 
to do serious injury to the foliage; it is safer to 
apply them with a drill. 
Value in Fertilizers.—In estimating the value 
of fertilizers it is the custom to speak of the unit 
of valuation. A unit is one per cent. of a ton, 
