144 MAINE STATE COLLEGE 



The pots receiving ten grammes of feldspar produced on the 

 average about 79 per cent, of the average of the grain produced 

 by those pots receiving three grammes of muriate of potash having 

 50 per cent, of actual potash. The amount of grain was not 

 increased by increasing the feldspar to 20 grammes though there 

 was a slight gain in straw. 



The conclusion to be drawn from the experiment is that the oats 

 were able to draw from the feldspar potash enough for a large 

 crop of grain. If this conclusion is verified by future work, some 

 of our feldspars may prove a cheap souice of potash to the 

 farmers of the State. 



EXPERIMENTS IN GROWING MIXED GRAINS. 



PROB. WALTER BALENTINE. 



Experiments in determining the relative amount of stock food 

 that can be produced by sowing mixed peas and oats as compared 

 with oats grown alone, and mixed peas and barley as compared 

 with oats and peas or oats, were not entirely satisfactory on 

 account of the rust attacking the oats and thereby depressing the 

 yield . 



Three plots, 244 feet by 150 feet containing 85-100 of an acre, 

 were selected aud fertilized at the rate of 1000 pounds of finely 

 ground South Carolina rock, 150 pounds of sulphate of ammonia 

 and 100 pounds of muriate of potash per acre. One plot was sown 

 to oats and peas at the rate of two bushels of oats and one bushel 

 of Canada peas per acre, one plot to oats at the rate of two 

 bushels to the acre and one plot to barley and peas at the rate of 

 one and one- half bushels of barley and one bushel of peas per 

 acre. 



NAME OF CROP- TOTAL CROP. GRAIN. 



Oats and Peas, 2330 lbs. 700 lbs. 



Oats, 2565 '• 689 " 



Barley and Peas, 3200 " 978 " 



The plot on which the barley and peas were sown produced but 

 little barley, the barley plants apparently haviug been smothered 

 by the peas. 



One of the principal objects in sowing peas and grain together 

 is that the peas shall be held in an upright position by the grain ; 

 this oflflce the barley did not fulfill in our experiment and on 

 account of the weakness of the straw of the barley it is doubtful 

 if it is desirable to use as a crop to grow with peas. 



