New York Agkicultural Experiment Station. 485 



total application at the rate of 100 pounds per acre for Soil 4a and 

 200 pounds per acre for Soil 14a, which was somewhat less than the 

 rate of the application of the preceding crop. The average of the 

 records of the two crops which have thus far been considered are 

 presented in Table 7. 



Soil 4 is identical with Soil 4 of the soil mixture tests. See 

 page 466. It was made by one part manure by bulk, one part 

 sand and two parts clay loam, the percentage by weight being 

 15.5 per cent manure, 32.3 per cent sand and 52.2 per cent loam. 

 When the soils were mixed, all except No. 12 received acid phos- 

 phate, containing about 15 per cent available phosphoric acid, at 

 the rate of 600 pounds per acre, and sulphate of potash, contain- 

 ing about 50 per cent actual potash, at the rate of 400 pounds 

 per acre. Nitrate of soda was applied in solution to Soil 4 at the 

 rate of 133 1-3 pounds per acre and double that amount was given 

 to Soil 14. These amounts were given in two applications, the 

 first being made about a month after the plants were transplanted 

 to permanent places and the second about three weeks later. 6 

 The nitrate of soda contained about 15-J per cent of nitrogen. It 

 was given in solution to each plant at the rate of 0.491 grams on 

 Soil 4 and 0.982 grams on Soil 14. 



The selection and management of the plants and the treatment 

 of the plats were alike in all respects and have been described for 

 Soil 4. See page 467. 



6 It was intended to apply the nitrate of soda in three applications so as to 

 make the total amount at the rate of 200 lbs. per acre for Soil 4, and 400 lbs. 

 per acre for Soil 14, but when the time came for the third application it was 

 decided to omit it because the plants had nearly reached marketable con- 

 dition. 



