MANURES FOR SPECIAL CROPS. 285 



* As before stated, the land was of a stronger nature than that 

 o- 1 which the first set of experiments wac made, and it was evi- 

 dently in better condition, as the plot having no manure produced 

 20 bushels of ears of corn per acre more than the plot without 

 manure in the other field. 



" On plot 4, 800 Ibs. of superphosphate of lime gives a total in- 

 crease of 11 bushels of eais of corn per acre over the unnianured 

 plot, agreeing exactly with the increase obtained from the same 

 quantity of the same manure on plot 5, in the first set of experi- 

 ments. 



" Plot 3, dressed with 150 Ibs. of sulphate of ammonia per acre, 

 gives a total increase of 28 bushels of ears of corn per acre, over 

 the unmanurecl plot ; and an increase of 22| bushels of ears per 

 acre over plot 2, which received 20 loads of good, well-rotted barn- 

 yard-dung per acre. 



" Plot 5, with 400 Ibs. of Peruvian guano per acre gives the best 

 crop of this series viz : an increase of 83 bushels of corn per acre 

 over the unmanured plot, and 27-J over the plot manured with 

 20 loads of barnyard-dung. The 400 Ibs. of ' Cancerine ' an arti- 

 ficial manure made in New Jersey from fish gives a total in- 

 crease of 18 bushels of ears per acre over the unmanured plot, and 

 12* bushels more than that manured with barn-yard duug, though 

 5 bushels of ears of sound corn and 10 bushels of 'nubbins' per 

 acre less than the same quantity of Peruvian guano." 



MANURES FOR TURNIPS. 



To raise a largo crop of turnips, especially of ruta-bagas, there is 

 nothing better than a liberal application of rich, well-rotted farm- 

 yard-manure, and 250 to 300 Ibs. of good superphosphate of lime 

 per acre, drilled in with the seed. 



I have seen capital crops of common turnips grown with no 

 other manure except 300 Ibs. of superphosphate per acre, drilled 

 with th? se2d. Superphosphate has a wonderful effect on the cb- 

 velopment of the roots of the turnip. And this is the secret of its 

 great value for this crop. It increases the growth of the young 

 plant, developing the formation of the roots, and when the turnip 

 once gets full possession of the soil, it appropriates all the plant- 

 food it can find. A turnip-crop grown with superphosphate, can 

 get from the soil much more nitrogen than a crop of wheat. The 

 turnip-crop, when supplied with superphosphate, is a good " scav- 

 enger." It will gather up an r ! organize into good food the refuse 

 plant-food left in the soil. It is to the surface soil, what clover is 

 to the subsoil. 



