PRODUCING ORGANIC MATTER th 
whole of this liquid is allowed to go to waste. Does 
not this explain why the author has gotten better re- 
sults from the use of green manure than from the use 
of barnyard manure? In the use of green manures he 
has saved all the valuable liquids which the green 
manuring plants assimilated into their roots and 
branches during their growing season, and has also 
saved two-thirds of the dry matter in these plants and 
thus secured a greater supply of organic matter for 
bacteria food, and supplying humus for the soil. 
But notwithstanding this, the author advises the use 
of all the manure you can get, and do not forget to 
spare the match and plow under for a supply of organic 
matter all cornstalks, weeds, stubble and straw. To 
get a further supply, we must make certain plants sub- 
serve our purpose, and in subsequent chapters the author 
will describe the virtues of some of those plants which 
he thinks are best adapted for producing organic matter. 
However, there are many others of great value, like 
the Canada field-pea, soy bean, cowpea, buckwheat, 
turnip, Dwarf Essex rape, alsike and crimson clover, 
velvet bean, corn sown thick, white mustard, etc. 
Leguminous plants are best for green manuring, be- 
cause of their power to draw vast quantities of nitrogen 
from the air; but there are many non-leguminous plants 
that are valuable for furnishing organic matter and soil 
covering. 
The ideal plant for furnishing organic matter is the 
one that can be planted in the fall of the year, and 
which will make sufficient growth to cover the ground 
during the winter season, and fill the soil for a consider- 
