FERTILIZERS. 



657 



Potash rendered soluble in a granitic soil during one month by different lime '■'impounds. 



Potash rendered 



soluble per 1,000 

 parts of soil. 



Cheek 



Gypsum 



Quicklime 



('allium carbonate 



Calcium nitrate 



Monocalcium phosphate 

 Calcium elilorid 



In experiments with the sand and clay constituents of the same soil, using the 



calcium salts at the rate of 1 gm. of lime (CaO) to 10 gm. of the soil constituents and 

 40 cc. of distilled water, the following results were obtained: 



Potash rendered soluble in different inecliaiiienl constituents of a granitic soil. 



Potash rendered soluble — 



In coarse 

 sand. 



In fine 

 sand. 



In clay. 



Check 



Quicklime 



Gypsum 



Calcium nitrate 

 Calcium chlorid 



Per cent. 

 0.105 

 .184 

 .105 

 .124 

 .278 



Per cent. 

 0.168 

 .195 

 .184 

 .193 

 .232 



Per cent. 

 0.132 



.132 



'."350 



This experiment lasted 34 days for the different grades of sand and 6 days for the 

 clay. The coarse sand contained 1.33 per cent of potash, fine sand 0.58 per cent, 

 and clay 0.51 per cent. 



The action of sodium chlorid on field crops (Deut. Landw. Presse, 31 (1904), 

 No. 101, pp. 842, 843). — This is a brief discussion of the fertilizing value of common 

 salt, based mainly upon the results of experiments by Wohltmann and Noll. The 

 general c< inclusion is drawn that moderate applications of salt are of little or no value 

 to cereals, that they are injurious both quantitatively and qualitatively to potatoes, 

 but that they favorably influence the sugar content of beets. 



Home-mixed fertilizers, C. D. Woods ( Maine Sta. Bid. 107, pp. 129-152) . — This bul- 

 letin discusses the advantages and disadvantages of home mixing; reports results of 

 cooperative experiments on home mixing with farmers in Brunswick, Houlton, and 

 Fort Fairfield, Maine; gives results of comparative tests of the home mixed and factory 

 mixed goods on potatoes in Aroostook County; explains methods of mixing fertilizers 

 with analyses of the more common fertilizing materials and explanations of the gen- 

 eral principles involved, and suggests formulas for home mixtures of fertilizers for the 

 more common farm crops. Analyses are reported which show that the composition 

 of the home-mixed fertilizers was in close agreement with that calculated from the 

 analyses of the unmixed materials and the mechanical condition of the mixtures was 

 good. 



Commercial fertilizers, E. H. Jenkins et al. (Connecticut State Sta. Rpt. 1904, 

 pi. 1, pp. 104 - VII). — This includes a statement of the duties of manufacturers and 

 dealers and of the experiment station in connection with the inspection under the 

 State fertilizer law, a list of firms licensed to deal in fertilizers in the State during 

 1904, notes on the methods followed in sampling and collecting fertilizers, expla- 

 nations regarding the analysis and valuation of fertilizers, and a review of the ferti- 

 lizer market from November 1, 1903, to September 30, 1904. 



