uniform and effective legislation, definitions, rulings, and enforcement of laws 

 relating to the control of sale and distribution of mixed fertilizers and fertilizer 

 materials in the Continent of North America. At the annual meetings of the Asso- 

 ciation reports and recommendations of investigators concerning definitions of 

 fertilizer materials, use of new products, and problems concerning regulation of 

 the fertilizer trade are discussed in detail. Fertilizer manufacturers are invited 

 to participate in these discussions and through mutual co-operation the farmer is 

 supplied with a product that can be relied upon to do the job expected in crop 

 production. The official publication of the Association may be obtained for a 

 small fee through the office of its secretary, B. D. Cloaninger, Clemson, South 

 Carolina. This booklet contains the official terms describing fertilizer materials, 

 a proposed model state fertilizer law as well as the proceedings of the annual 

 meeting. 



Whether or not a fertilizer contains the guaranteed amount of plant food 

 can be determined only by a chemical analysis. For this reason it is considered 

 necessary that each brand of fertilizer offered for sale be officially sampled and 

 analyzed each year. When failure to meet the guarantee is proved by chemical 

 analysis, the prosecution or seizure provisions of the law may be invoked. The 

 purchaser's refusal to buy a fertilizer which does not conform to the law will not 

 only assist in the enforcement of the law but will at the same time insure him the 

 protection of the law. 



USE OF COMMERCIAL FERTILIZERS 



It is not within the scope of this department to make recommendations re- 

 garding the use of commercial fertilizers. The Department of Agronomy and 

 the Department of Agricultural and Biological Chemistiy of the University of 

 New Hampshire Agricultural Experiment Station test soils and conduct experi- 

 mental work with various fertilizer materals on hay and crop land. The Depart- 

 ment of Horticulture investigates fertilizer treatments for fruits and vegetables. 

 Much of this work has been published, and is available for free distribution to 

 residents of New Hampshire. Address your request to Mail Service, University 

 of New Hampshire, Durham, New Hampshire. A list of currently available publi- 

 cations on fertilization follows: 



Fertilizer Needs of Alfalfa on New Hampshire Soils. 



Effect of Soil Moisture and Fertilizer Placement on Vitality 



of the Potato Seed Piece. 

 Fertility Needs of Dairy Farm Crops in the Connecticut Valley. 

 Fertilizers for Sweet Com. 

 The Response of Clover and Total Forage to Top-Dressing 



Fertilizers. 

 Growing Strawberries in New Hampshire. 

 Forage Crop Production in New Hampshire. 

 Care of the Established Lawn. 

 Experiment with Potatoes. 

 Culture of Low-Bush Blueberries. 

 Growing Grapes in New Hampshire. 

 Cane Fruit Culture. 

 Tomatoes for New Hampshire. 

 Growing Apples in New Hampshire. 

 Growing Vegetables At Home. 

 Asparagus in New Hampshire. 

 Hotbeds and Coldframes. 

 Growing Potatoes in New Hampshire. 

 New Hampshire Recommendations for Seed, Fertilizer and 



Lime. 



While the word fertilizer does not appear in all of the above titles, none is 

 included which does not discuss the use of fertilizer. 



