540 EXPERIMENT STATION RECORD. 



75, i)p. 34) ■ — Analyses are reported of 220 samples of fertilizing materials, inclnding 

 wood ashes, lime-kiln ashes, eotton-hnll ashes, muriate of potash, nitrate of soda, 

 sulphate of ammonia, eotton-seed meal, castor pomace, tanka<j:e, bone, mineral phos- 

 phate, acid phosphates, mixed fertilizers, l)arnyard manure, and muck. 



Fertilizer analyses, R. C. Kedzie and L. H. Van Wormer {Michigan Sla. Bui. 

 192, pp. 175-193). — This bulletin contains the actual and guaranteed composition of 

 . 96 samples of fertilizing materials examined during 1901, with text of the State fertili- 

 zer law and notes on valuation, explanation of terms, etc. 



Analyses of commercial fertilizers, H. J. Wheeler et al. {Rhode Mnnd Sta. 

 Bid. 79, 2)p. 13). — "This bulletin contains analyses [48] of such samples of bone, tank- 

 age, and of commercial fertilizers designed for potatoes, or for potatoes and vegetables, 

 as have been collected in Rhode Island during the present year [1901]." 



Analyses of commercial fertilizers, J. L. Hills, C. H. Jones, and B. O. White 

 ( Vermont Sta. Bid. 87, pp. 147-192) . — The results of inspection of 134 brands of fertili- 

 zers, the output of 9 companies, are reported, with a discussion of the quantity and 

 quality of plant food furnished by the fertilizers, the selling prices and valuations, 

 and the average composition of the brands examined as compared with that of fertili- 

 zers examined during 4 previous years. Six-sevenths of the brands were up to or 

 above guaranty. As a rule the quality of the crude stock used was good. The 

 average selling price approximated $28.75 and the average valuation $19.44. Selling 

 prices have remained unchanged notwithstanding an advance in the price of crude 

 stock. The average composition of the brands was a little higher than that of the 

 previous year. 



FIELD CROPS. 



Report of the agriculturist, E. R. Llo^d {Mississippi Sta. Rpt. 1901, pp. 12-17). — 

 Experiments with cotton, broom corn, Indian corn, sorghum and cowpeas, and 

 wheat are briefly discussed. The grade of cotton grown on thin hill land was 

 improved by the use of barnyard manure and commercial fertilizers, the improve- 

 ment being most marked in the cotton from the land which had received the Ijarn- 

 yard manure. One-half acre of Evergreen broom corn yielded at the rate of 1,600 

 lbs. of uncleaned heads per acre. Sorghum and cowpeas grown together for hay 

 were sown broadcast and in drills. Notwithstanding the 2 cultivations given the 

 drilled plats, the crop of hay was largest from the plats sown broadcast. When 

 grown in the proportion of f cowpeas and \ sorghum they were found ready to cut 

 for hay about the same time. The objection to the mixture is that the peas cure 

 much faster than the sorghum. The yield of shredded corn fodder was about 1 ton 

 per acre. The cost of handling the fodder per ton was 75 cts. and its value, as com- 

 pared to peavine hay, $5. The waste in feeding shredded corn was 12j per cent. 

 Twenty-five varieties of wheat, including 17 from foreign countries, and 2 varieties of 

 winter and 1 of spring oats were tested, and the yields are here recorded. Brief 

 notes on each varietv are also given. 



Systems of cropping with, and without fertilization, W. C. Latt.v and J. H. 

 Skinner {Indiana Sta. Bid. 88, pp. 27-38). — The experiments here reported, in prog- 

 ress since 1889, were conducted to study the effect of various systems of cropping on 

 the yield and quality of the crop and on the soil. The different systems ot crop- 

 ping were as follows: Series 1 — corn and oats; series 2 — corn, oats, and wheat; series 

 3 — wheat, grown continuously; series 5 — corn, oats, wheat, and clover; series 6 — corn, 

 sugar beets, oats, wheat, grass, and grass; and series 7 — corn grown continuously. In 

 connection with the crop rotations, a study was made of light and heavy applications 

 of commercial fertilizers and l)arnyard manure. The results for 10 years are given 

 in tables and ])riefly discussed. With the excei)ti()n of the series in which crops 

 were grown continuously, the effect on the quality of the crops was not marked. 



