24 BULLETIN 258, U. S. DEPARTMENT OF AGRICULTURE. 



LESSON TWO. 



subject: fertilizers, topics: (1) calculating formulas; (2) home mixing. 



Calculating formulas. — Interpreting formulas, finding the com- 

 mercial value. 



Home mixing. — Advantages, fillers. 



Class assignment. — Duggar's, pp. 102-107, and Appendix, p. 1. 



Practical exercises. — ( 1 ) Club members should compound their fer- 

 tilizers. If it is convenient, take the class to the home of some club 

 member or some farmer who is mixing fertilizers and give the pupils 

 practice in this work. (2) Have members of the class report the 

 brands and formulas of fertilizers used at their homes, also the 

 purpose for which each is used. 



Correlations. — Arithmetic : See " Problems " in Duggar's, p. 107 ; 

 Farmers' Bui. 44, p. 14; United States Department of Agriculture 

 Bui. 132. 



LESSON THREE. 



SUBJECT : fertilizers, topic : suiting fertilizers to soils and crops. 



Class assignment. — Duggar's, pp. 108-111 ; also Appendix, pp. I 

 and II. Supplement the lesson with notes from Farmers' Buls. 44 

 and 398. 



Practical exercises. — (1) Have the members of the class report the 

 special formulas or brands used at their homes for corn, cotton, Irish 

 potatoes, oats, and vegetables. Compare the percentages of essential 

 elements in each case and explain why different formulas are used 

 for different crops. (2) Compare the formulas reported by the 

 pupils with those recommended in the textbook and in Farmers' 

 Bui. 398. 



Correlations. — Language : Have the members of the class copy in 

 their notebooks all the reports in practical exercise 1. Arithmetic: 

 Continue the work as suggested in the previous lesson. 



LESSON FOUR. 



subject: home orchard, topics: (1) planting and training young grape 

 vines; (2) pruning and training bearing vines. 



Young vines. — Making cuttings, grafting, planting cuttings or 

 rooted vines, first pruning, summer pruning. 



Bearing vines. — Principles, objects, and methods of priming; 

 training, the trellis; pruning implements. 



Class assignment. — Give to the class as notes material found in 

 Farmers' Buls. 471, pp. 12-16 ; 181, pp. 22, 23, and 30-32. 



Practical exercises. — (1) Make a trip with the class to a good 

 orchard to observe practice in priming. Make previous engagement 



