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 

 Association, 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 in- 

 vited 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. 



Control oflficials are giving the matter of excessive ash in sheep and cattle 

 manure samples their attention. Total ash was determined in each of the 17 

 samples of dried manure drawn this year. The percent ash found varied from 

 11.9 Vc to 74. 0*;/. Eleven of the samples had excessive ash content. Excessive 

 ash content is indicated when the amount is over 30 Vr and adulteration with 

 sand or "dirt" is likely. Even with high ash content the guarantees are usually 

 met because the amount of plant food in manures is relatively small. The point 

 is that manures are bought to supply a considerable amount of organic matter. 

 A high ash content indicates a relatively low organic matter content. This prob- 

 lem is being given special attention by New England control officials and it is 

 expected that some specific recommendations will be presented before the Asso- 

 ciation of Fertilizer Control Officials in the near future. 



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 Chemistry of the University of New 

 Hampshire Agricultural Experiment Station test soils and conduct experimental 

 work with various fertilizer materials on hay and crop land. The Department 

 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 pub- 

 lications on fertilization follows: 



Growing Apples in New Hampshire. 

 Growing Vegetables at Home. 

 Asparagus in New Hampshire. 

 Growing Potatoes in New Hampshire. 

 Growing Strawberries in New Hampshire. 

 Forage Crop Production in New Hampshire. 

 Care of the Established Lawn. 

 Culture of Low-Bush Blueberries. 

 Growing Grapes in New Hampshire. 

 Cane Fruit Culture. 

 Tomatoes for New Hampshire. 

 Experiment with Potatoes. 



Soils and Their Crop Adaptation in New Hampshii-e. 

 Forage Variety Trials in New Hampshire 1951-1956. 

 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. 



