14)02.] 



207 



Note on the Behaviour of Plants toward 



Different Nitrates. 



By 



T. Furuta. 



In coDnection with certain problem I wanted to test which bases of 

 the soil would support the life of plant for the longest time.'' 



The nitrates of potassium, sodium, calcium and magnesium were left to 

 act in the concentration of one percent on shoots of wheat, soya beans, 

 onions, rice and tobacco. The temperature of the room ranged from 

 10° — 23° C ; the plants were exposed to bright light near the window. 

 The experiments were commenced on March 2.'5th, 1902. The results 

 observed are seen from the following tables ; — 



J). The action of difierent nitrates in presence of all nutrients has been compared by 

 W. Schneidewind (Journ. fur Landwirtschaft, 1898) with sugar beets and oats. He found 

 that, while potassium nitrate increased with oats the yield of straw, magnesium nitrate 

 increased the yield in grain. 



