Plant Research 
For about fifteen years the University of Ne- 
braska has been doing research on nitrogen for plant 
food. Now their reports are quite complete but re- 
search still continues. For five years they have been 
doing research on lime and phosphates. Their re- 
ports are good on farm crops and will undoubtedly 
be more complete in a few more years. 
Most trees require an abundance of both but 
there are some exceptions. Many flower bulbs seem 
to benefit from potash but the ground seems to be 
well supplied for most other plants. 
Animals and birds each seem to require different 
foods to do well. A horse needs grass, hay and 
grain; a dog needs meat with other foods; a chicken 
lives on worms, grain, bugs and grass. 
Plants resemble animals in this respect; they re- 
quire different amounts of moisture and different 
amounts of major plant foods. This is also true of 
minor plant foods. 
Some plants: require much moisture in the air; 
others, little. The roots of plants also require dif- 
ferent soil structure..-Some do better with culti- 
vation; others do better without cultivation. 
Azaleas, “stra wberry- begonias, and tuberous 
rooted begonias grow best in peat moss. Many other 
plants like smaller amounts. 
Russell Lupine will not grow here unless the 
ground is heavily limed. About three-fourths of our 
garden plants do better in sandy ground or limed 
ground. 
In this catalogue, you will find a number 
of experiments printed that were true under 
existing conditions. If your soil is the same 
as ours, the results will be the same; if your 
soil is different, you may expect different re- 
sults. More or less moisture might make a 
difference, toos’'I have also listed plant foods 
that have in certain cases caused food de- 
ficiencies that resembled disease. 
