18 BULLETIN 1126, U. S. DEPARTMENT OF AGRICULTURE. a 
wick it was found that a fairly high concentration of borax was j 
required to produce injury, and it is significant, moreover, that the q 
rainfall there, which would be approximately the same as at Holmdel, j 
was quite heavy. 
f 
TaBLE 8.—Total yields of potatoes grown on different types of soil treated with fertilizers 3 
of stated composition, applied at given rates per acre, and containing varying percent- 
ages of borax, tests of 1920. 
Application of muriate of 
potash. 
| 
Items of comparison. With 
planter in 
drill row, 
1919 
grade. 
At Cape Charles, Va., on Sassafras sandy loam: | 
Potash CxcO 5 per acres. oes. sot. POURS 2s eee ee 
Borax (Na2B407) per acre.....:.-.---- G02 22 bee Seen 
Viel di peracres2se-5255 2 Sake es ee bushels 3 =c.25- 282 
Potash (720) per acre. ...- a pounds <s\e= ee eens 
Borax (NasB407) per acre...-....-.--- dogs iss e 
Wacldoper acres. toes Sos kcine bushels: .|----2423- 
Potash (7720) per acre. ............ pounds. ose 
Borax (Na2B4O7) per acre..-......---- (6 ofa Sa Ley Seeks ee 
Micld Weracle. Oh <ciseed ase a ae bushels: 2)2- 22-22 2- 
At Norfolk, Va., on Norfolk sandy loam: | 
Potash: @ sO) per acres-23-2 2 3se Pounds =)- sss 
Borax (NaeB407) per acre...........-- QOz eles a ee 
MICha*ner acres 25 225.545 eee sane Dushelse i: 425-3 
| 
Potasit (iO) per acre. =. Lee - ee. poundssal_. Sess es 
Borax (Na2B4s07) per acre. -.--.-.----- doze Sree 
WHelhdepeRacke--=.2c. eee 2 ee bushels. wocescee tees 
iPotashy(SseO) per acres so. =o 5 pounds. a ae ie 
Borax (NazB407) per acre.......------ dol AS SCs iF 
Mirel daperracre™. Se. e hence Ses uShelsen | see eee 
At Holmdel, N. J., on Sassafras loam: | 
Potash (oO) per acre-<. so) see pounds. .| 45 
Borax (Na2B4O7) per acre....-...-..-- dows: 7.5 
NCUGHG By aXe @ Neher Se antenatal Me bushels. | 262 
Potash (x90) per acre.-...-.. eee pounds. .| 75 
Borax (Na2B407) per acre......-.----- qdoes—=| 12.5 
Wireldipenacresis — ii: Pier yee ss bushels. - 256. 0 
Potash: (220) *per-acre. = 42>. 237s pounds..| 105 
Borax (Na2B407) per acre........----- dO: ==.| 17.5 
Micld per: ackes** | 22 Space Sees bushels..| 226.0 
At Presque Isle, Me., on Caribou loam: 
Potash* (@<cO): per acre- > 4... 4 = - pounds..| 54 
Borax (Na2B407) per acre..-.-...--.-- dors=s| 8. 85 
NarelLdepel: AGRE yoo a5 eye otic bushels..| 331.4 
iPotashiGx>@)spermacre >). Fass 2 2a pounds. -| 90 
Borax (Na2BsO7) per acre.--.......-.. do. -..| 14.75 
Vickd Peracre 2 ps2 228s asl ee bushels..| 301.5 
Potash: (250) per acre> 2222 ¥.. o£ pounds. .| 126 
Borax (NaeB4O07) per acre...../.....-- do. 43} 20. 65 
Perclaunemacne 4 ees aes eee bushels..| 232. 1 
With distributer. 
1919 
1920 
erade. | grade. 
Composition of fertilizer 
(per cent). 
NHs3. 
405. 9 
| 
| 
P20. 
~ s | 
7 8 
7 8} 
7 7 
7 7 
C} 7 
4 10 
4 10 
4 10 
5 10 
5) 10 
5 10 
jx20. 
Or 
a 
en 
Waiting capone 
Oe ee ee ee eS 
as 
NE ate ree eRe free ea ee aE ee, eae ee ee a Oe ee 
