832 Report or THE HORTICULTURAL DEPARTMENT OF THE 
fertilizers was tried upon both kinds of soil. The clay loam 
was composed of rotted sod from an uncultivated field. The 
sandy loam was from the side of a cultivated field where part of 
it had been drifted by winds. It could not support nearly so 
heavy a sod as the clay loam, and contained less humus and 
also less nitrogen, phosphoric acid and potash, as the following 
analyses show. These analyses were made by Messrs. W. H. 
Andrews and A. D. Cook. 
TABLE J.—ANALYSES OF THE CLAY LOAM AND THE SANDY LOAM. 
(AIR DRIED SAMPLES.) 
Nitrogen. Phosphoric acid. Potash. 
Soil. (N.) (P,0,.) (K,0.) 
Perictss - Per ct. Per ct. 
Clay MOAI aiitds ss cee phates wyaie'n 0.215 0.075 0.469 
Sandy: 46838 -s.05:s50 «ee cole she bie 0.052 0.067 0.121 
NITROGENOUS FERTILIZERS TESTED. 
In these tests organic nitrogen was used in the forms of stable 
manure and dried blood, and inorganic nitrogen in the forms of 
nitrate of soda and sulphate of ammonia. These are among the 
most important nitrogenous fertilizers of commerce. The chem- 
ical fertilizers just mentioned were tried both with and without 
*'These soils were similar to those used in the work of 1897-8, air-dried 
samples of which, as determined by official methods, gave the following 
analyses. (See Bul. 146 and Ann Rept. 1898.) 
TABLH A.—CHEMICAL ANALYSES OF CLAY LOAM AND SANDY LOAM. 
i (CROP OF 1897-8.) 
Phos- 
phoric 
Moisture. Nitrogen. acid. Potash Lime. Organic 
Soil. (H,0.) (N.) (2,0 5:) (K,0.) (CaO.) matter. 
Per ct. Per ct. Per ct. Perct. Perct. Percet. 
Clay SlOAIN.G, tise cles wales wes cae 6 13.3 237 -067 318 1.022 7.81 
Clay loam, water-free....... 0. . 236 .077 .368 1.179 9.01 
DAL y milo ee mene eee eee 14.0 075 oats bl 083 343 2.68 
Sandy loam, water-free...... 0. -087 ~129 .097 .399 3.12 
TABLE B.—MECHANICAL ANALYSES OF CLAY LOAM AND SANDY LOAM. 
(CROP OF 1897-8.) 
Clay Loam. Sandy loam. 
Per ct. Per ct 
PINE ZVAVSMUV Vs dakivs vente set's ce enesbecescensscccccabecens ‘e 8.32 0.51 
COarse “Sand sic seoaase cee culate sae eee re en Ute a 5.20 0.69 
Medium: sands. 22S EPR SEE PPE. Bas recut 20.71 9.49 
Bin@sSan ds. cict oa b oetk ste nen tn ee eee 43.45 (Hane 
Very finite sands. ive ees esc eee oe tne eee eee 94 2.44 
BE Enc BN eS i Sdn adh bicehs lth stoek on CRa ohh s Maus ede ae reeee 7.96 1.60 
MING SIIG alerts st eie See ( eee Go os Oe eee ae 1.64 1.23 
GIAY Sia h ses ced veenesesas cn saneeavens Sten ws ae ey pMeetneee” 9.86* 3.797 
OTZaANIC=MAtler acs o.s3< ews Seeks eee iote tere eee ee 7.02 2.75 
*Including 1.39 unsettled clay. tIncluding 1.03 unsettled clay. 
