Apply broadcast just before plants are set and use from eight to 

 twelve hundred pounds per acre. 



For brussels sprouts, kohl-rabi and kale about the same application 

 will be useful. 



For rape use one-half to two-thirds the above amounts. 



If one grows these crops on a small scale only it will often be 

 preferable to use a ready mixed fertilizer having about the composi- 

 tion of the mixture of chemicals recommended. There is usually no 

 saving in cost when chemicals must be purchased in small quantities, 

 and of covu^se this practice involves rather more trouble. 



When fertilizers only are to be used for these 



When Fertilizers crops it is believed that they should show about 

 only are Used, the same general composition as the mixture 

 above recommended for use with manure ; but 

 a rather higher percentage of nitrogen will be useful except after 

 clover, alfalfa or other legumes, or on soils in high fertility or con- 

 taining a large proportion of humus, such as reclaimed muck or peat. 

 A portion of the nitrogen in a fertilizer for this use should be derived 

 from materials less soluble and more quickly available than nitrate of 

 soda, such as cyanamid, tankage or bone. A part of the phosphoric 

 acid also may be in less soluble form than acid phosphate, and it is 

 believed an application of basic slag meal will be highly desirable. 

 This has the double advantage of furnishing available phosphoric acid 

 and a large amount of lime (mostly, it is true, in neutral compounds), 

 thus reducing, as has been pointed out, the necessity for a separate 

 application of lime in preparation for these crops. It is believed that 

 when the slag is used it will be found best to apply it by itself on the 

 rough furrow to be deeply worked in by disking, and if some time 

 before putting in the crop so much the better. The previous fall will 

 be the best time. The useful application will probably range from 

 600 to 1200 pounds per acre according to soil and crop. It will be 

 desirable, especially with soils low in fertility, to mix sulfate of potash 

 with the slag at the rate of 100 pounds per acre. 



In connection with this preparatory application of slag meal and 

 potash a mixture of chemicals made up in the following proportions 

 is recommended : 



Acid phosphate, 4 parts. 



H. G. sulfate of potash, i " 



Nitrate of soda, 2 " 



Cyanamid, 2 " 



Tankage, 4 " 



