﻿2 DEPARTMENT OF AGRICULTURE, BULLS.. 1-25. 



Department Bulletin No. 3.— A Normal Day's Work for Various Farm 

 Operations. 



Introduction 



Relation of farm equipment to farm management 1 



Investment factors 2 



Seasonal operating factors 3 



Daily operating factors 5 



Determining the net working day 7 



Analysis of the data 7 



A normal day's work for given farm operations 8 



Summary 42 



Department Bulletin No. 4. — The Reseeding op Depleted Grazing 

 Lands to Cultivated Forage Plants. 



Prefatory note 1 



The range problem 2 



Investigations of the National Forest Range problem by the Forest Service . 2 



Location and character of the re vegetation studies 4 



The general studies 5 



Investigations in the Wallowa Mountains 9 



Selection of species 25 



Relative amount and cost of seed per acre 26 



Increase in forage production 29 



How to graze the range during the restocking period 30 



Conclusions 30 



Department Bulletin No. 5. — The Southern Corn Rootworm, or 

 Budworm. 



Distribution 1 



Food plants of the larvae 2 



Food of the beetles 3 



Depredations of the larvae in corn 3 



Losses caused by the larvae 4 



Habits of the larvae 5 



viposition 6 



Seasonal history 7 



Natural enemies 9 



Remedial and preventive measures 10 



Department Bulletin No. 6. — The Agricultural Utilization op Acid 

 Lands by Means of Acid-tolerant Crops. 



Introduction 1 



Source of soil acidity 2 



Decomposition of leaves 3 



Acidity of green manures 4 



Injurious effects of acidity 5 



Source of nitrogen for acid-land plants 6 



Crops adapted to acid soils 7 



Leguminous plants for acid soils 9 



Acid-tolerant crops in rotation 11 



Beneficial effects of soil acidity 12 



Conclusion 13 



Department Bulletin No. 7.— Agricultural Training Courses for Em- 

 ployed Teachers. 



Introduction 1 



Means by which employed teachers may acquire agricultural training 



A suggested reading course in agriculture based on farmers' bulletins. ... 13 



