224 SOILS 



on lands containing a large amount of nitrates. There 

 is too great danger that these will be broken up by 

 the decay of the manure ; hence, manure should go to the 

 fields where the supply of nitrates is at their lowest point : 

 during the fall, just after crops have fructified ; during 

 winter, when nitrification is slow or inactive ; in the 

 spring, when the supply of nitrates is still low. It is 

 unwise, perhaps, in the summer, when the nitrate supply 

 is unused and still large, to apply manure to cultivated 



CRIMSON CLOVER IN THE SOUTH 



Humus is added to the land and nitrogen is secured for crops. Crimson clover 

 is a splendid crop for the greater part of the South 



lands; the risk is too much, for these nitrates are likely 

 to be lost. There is no objection, however, in sending 

 manure at all times, and especially during the winter and 

 spring months, to grass or pasture or mowing fields. A 

 clover sod that is to be planted to corn in the spring is 

 an ideal place for a thin, even, and uniform covering of 

 manure. 



How much manure to apply .As a general rule, it is 

 more scientific to apply small amounts of manure fre- 

 quently than to supply large amounts at longer intervals. 



