16 BULLETIN 353, U. S. DEPARTMENT OF AGRICULTURE, 
TaBLE III.—Mean percentages of moisture in forage samples of different sizes, showing 
also probable errors—Continued. 
SECTION B.—FIELD-CURED MATERIAL.! 
Moisture. 
Sample. Crop. Place. 
Original eels Lost in air 
samples. y drying. 
Per cent. Per cent. Per cent. 
2-NOUNAK 2s 2 see EEE E ER Sorghum..| Amarillo, Tex.| 48.4+0.812 | 25.510.712 30.5+0. 694 
A-NOUNGE eis Hae ee eae alee | ae GO: 2 ace a|ceeer Goss Sacks 44.64 .987 | 29.34+1.003 21.54 .351 
G- pound S23 Sexes gests se eet | Ses Gow See WoOstes has 41.3+ .300 | 29.74 .515 16.5+ .281 
S-pOUNGL tes et eeae se eee See (a Koes Recs se Cece 38.3+ .528 | 28.64 .617 13.6+ .290 
Mears 28 si see Bone nape oops iM Ay 2 em eee ACs ee ce ae 43.2 28.3 20.5 
2-POUNGA = Oh2a. aoe Rees Sorghum...) -Hays, Kans*. .|22 22-26-22 seleeee eeeeee 26.9+ .952 
A=WOUTG! se. SS eR ERE en eh ee is Goss eral e Gogh: 4. ESE eae: | Pe cee eee 25.04 .432 
G2 POU Ee a Le eet ore yes dots 2c2|22e COs 2s ash cheiscieee eee a5 | eee eee 26.94 .422 
S-pOUNG eG cect epee ee eeesee ee lees dere ee lac cits (0 (Re EN eps I ee | MEE RAIS 25.04 .302 
Mean nis nk at ea oil ete oh Soe shee ed IE rg ee 26.0 
DOUNG LHe cc sesaceee cea caa ee Timothy.-| New London, 18.84 .254 | 13.84 .192| 5.34 .402 
io. 
A“ OUNG? eee Sa ots ee ee ee ga doses asses dos earn 20.74 .321] 14.24 .224 7.64 .384 
G= POUT ee ea se an ee ae GORe es Soe Ore ee 21.74 .285 | 14.34 .148 8.64 .388 
S-pounds 2.2255 See ee elacs dos. 2heclessz2 dosioea.4 20-14 .277| 14.04 .127 7.14 .354 
Meant or sare si Gated aceite onstrate Sa 20.3 14.1 7.2 
2=NOUNG eins shi see ae eae eee Tall oat- | Arlington, Va.| 31.84 .409 | 17.74 .295 17.14 .418 
grass 
A-DOUNG A hos thea eee Operas qos 29.24 .750 | 19.94 .861 14.14 .863 
G- pounds. Sassen ao ons doses 's|o258 doe. ce se 27.84 .522 | 17.34 .112 12.7+ .566 | 
S-POUNG yachts eee ea eee Te GOS ee ee Ol ererems ace 27.2+ .136| 19.44 .113 9.54 .169 
iN CA ee alate caah Sol glee a Megiared a hak Pease. Alan 29.0 18.6 Eee oe 
NOUN Se Sr eee a le ee Alfalfa....| Arlington, Va.2} 9.04 .193| 9.54 .045 |.............. 
AANOUNG acs cco me ee el nee (0 oes Sere a Co aa ies ere TO; 4-= 099)" 10082 5203s lo2-coeeee eee 
G=pOouTid er oe eek eee ere ens GOs ee | sees dor ees 12.34 .257 QO) 432° S156 Wea cce teers 
S-NOUMG Sears seemed ae pee cal ere Co Kote 250s eee Osea 1210220. 1815 1d 03> 235) beeen 
10 C2 Bagel oy ag ge a eae = ears S| (ana 2 ens Al PMS A Aero Parl MSS woes 10:03) 5 os See 
2-POUNG eas Seek eee eeaeihe eee Alfalfa ....| Chico, Cal.-... 20.6+ .558 8.64 .587 13.2+ .611 
A-DOUNG eins: ts ae eeepc a tose ee Goze reenter Cosy yee 23.9+ .585 9.74 .095 15.94 .548 
G-POUNGE ete See tea ee ee Ean GOs Aer cee (Oho One 22.4+ .399 9.34 .067 14.64 .452 
S-POUNG eS o= fete acer thee acct lose GOs pase GOs a seee 22.441.454 | 11.54 .186 13.4+ .089 
Moan) ott tree ih Brera: peel. | ean thas 22.3 | 9.8 14.3 
1 Average probable error for the 2-pound samples, 0.445; for the 4-pound, 0.548; for the 6-pound, 0.353; 
for the 8-pound, 0.515; and for all the samples, 0.465. 
2 The alfalfa at Arlington was cured in the greenhouse before the original weight was taken, so that the 
original weight is of air-dry rather than of field-cured material. 
The average probable error for the green samples is about 0.240 
of 1 per cent, and of the field-cured samples 0.465 of 1 per cent. It | 
appears from this that the probable error for green samples is approx- 
imately half that found in the corresponding field-cured samples. 
In field practice, however, this difference is not so important as it 
appears, because the bulk on which the correction is made in the 
field-cured material is approximately half of that where the original 
green weight is considered. 
Much greater extremes, however, are found in the field-cured sam- 
ples than in the green samples, showing that even though the aver- 
age probable error is not excessive, still there is a possibility of 
sufficient error in these to affect the results when corrections are 
