DEPARTMENT, LAWRENCE: ROBINSON & SONS, MODESTO, CALIFORNIA, U.S. A, 


PAO REY (RO PURTHER YPROF ETS © 


Wiis: aetna pees Si aacPre cay 1a. tes Part q aoe 
! ah ce wrest This is your file copy. 
3 ee on i livia, _ Additional copies upon request. 
Breet ‘YOUR CUSTOMER: Te one, Men inary interest in doing business with you -- his own, his 
ss very own profit -- no one else's, To serve him ~- to give him cause to come back to 
Biche Neto Pr your dealers, you must boost his (profits. 
: HOW? — well, fine seeds with excellent 
. Service’ tell part*of. ithe steryy but, 
—-— will they, by themselves guarantee 
(hie spree et t ’ 
TES 
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2 “NO, “THEY WON ace thet 3 cha we want to discuss the rudiments, the essentialities, 
ahha of this increasingly important fertilizer probiem. We don't know all the answers, no 
one does, but we've been doing a lot of experimenting and so in this bulletin WHY 
— PERTILIZE, and next month, WHAT ARE FERTILIZERS we'll cover the problem and its pro- 
: fit. potentialities ies and TOUR CUSTOMERS, as we see it, 

aaqonnon 

WHY FERTILIZE oa me 
A Wer: “when your G@ubestors: and mine first began to rob the soil of its minerals, they 
ee no WOITY , Ss soil was wthch and ule able to give a full measure of productivity. 
“Years ey see. of cane tant tilling, however, have generally depleted soils of 
their chemical ability to produce crops with that extra tonnage margin which 
means the difference between profit and loss to YOUR CUSTOMERS. Especially, will 
this be Boe es farm prices begin to lower while costs follow more slowly. 
oo 
3 sc 
Mitondh a complete Boil analysis Boe. Pr Gatent quantities ef all chemical Su dhents 
present to keep plant | life for hundreds of years, they are usually within the interior 
of the soil pare 1cie,- ‘Plants absorb thei: food by giving off carbon dioxide, which is 
‘taken up by soil moisture and forms carbonic acid. Carbonic acid. attacks the outer 
ae ee ee tie Pee tenet Gs and dissolves plant food which then poco: available to 


oe ti et ees pee stand ea thie process. can take the ot eee plant nutrients 
from the soil. The replacement of these. elements in the amounts of which they are 
emoved from the Boil is: the only way to insure quality and aon yields. 
aera only. tne ne ot soil, but, the type of crop to be grown must be taken into 
consideration before adopting qi tertrlizer Baa at as the demands upon the 
Get PIAS fete a LEA SE with various ‘its 
n be weulbared: ke ‘animals or oi oenge in thet they must have a 
eee ial Plantes one eee wh only | is bad practice ite continued year after 
see tainted’ oe give oe “slow continuous feed to the plant through- 
- The. nitrogen content is an example of this, as it is. made up 
f the gee ont ee basic chemicals which in some cases, act. immediately, in 
, slowly. Mixed fertilizers include’ all. these types of chemical compounds, 
hich er ae food for the plants to consume through the bulk of the season rather 
an tem t periods” ae fertilization followed by food shortages for the re- 
Cont'd. on ee 
“ AMERICA’ SPO GROWERS” 
ae 
