5. 



The fertilizer with the Is ast differ enco botweGn the mixed and unmixed 

 values was a 4-16-4, carrying/' 24:' units of plrnt food. The fertiliser with 

 the greatest difference between mixed and muriixed values was "a S-8-5 , carry- 

 ing 15 units of plantfbodt- Fertilizers of- hi^.h analyses usually furnish a 

 unit of plant food cheaper than do fertilizers of low analyses. For If or ti- 

 lizers having 19 or more units of plant food the difference in price hotv/een 

 mixed and unmixed goods vjas $8 ♦14 compared, with $11#0S for fertilizers having 

 18 or loss, units of plant food. The additional pl-ant food in a fertilizer 

 of high analysis, is usually bouglit by a farmer- at wholesale prices/ 1/ 



Fertilizers are sometimes applied to such lo;;-valuod crops or to s ueh 

 poorly drained soils th^;t there can be little, or no increase in returns from 

 their use*- Under such conditions- it.^is best to apply no fertilizer, or if 

 fertilizer- is applied, tho\lo\/er the^grade and the lev; or the cost the loss the 



Application to Vineyards 



In 1928, about 4 out of 5 Pennsylvania growers fertilized their vine- 

 yards, rf the areas -studied in ITew York the most fertilizer was used on the 

 vineyards in the Hudson Valley. . In this area, about S growers out of 3 

 fertilized thoir vineyards, Nearly half the grovjors interviewed in Chailtnuqua 

 Co;*, N.Y. applied fertilizer to thoir vineyards, but only 34*5 percent of the 

 acreage was fertillzod. In the Finger Lal-zos area,^ 2 farmers out of 5 applied 

 fertilizer to their vineyards, and- about 30 percent of the total grape acre- 

 age studied in this area was fertilized in 1928. 



In Michigan, fertilizer was applied to 45 percent of the vineyards and 

 covered about 39 percent of the total grape acreage studied in that State. 



In /a'*kansas, in 1929, 14 vineyards out of 73, or about 1 out of 6 v/ero 

 foif'tilized. Those 14 vineyards contained 315 acres t?iat were fertilized and 

 1 Of those vineyards, contained 165 acres, or aboiit 53 percent of the total 

 fertilized acreage* 



For the farms studied in all areas, about one third of the total vine- 

 yard acreage that v/as fertilized was' treated with^ roodywnixed fertilizers 

 aMone third v/ith sodium nitrate, either alone or in combination V7ith acid 

 phosphate, (table 3.) A majority of ■ the vineyard acreage fertilized in 

 North East,. Pa,, and^ in the Hudson Yflloy,. was treated mth. ready-mixed ferti- 

 lisers, Sodiam nitrate was used' on about- 86 percent of the acreage fertilized 

 in'tho Finger Lakes area and sodium nitrate either alono or in combination 

 vfitji acid phosphate was used on 47 percent of the- acreage fertilized in 

 Ch&utauqua Co,, -N,Y»- In Michigan, 4 acres out of 5 ceres of viney:ird itnat 

 were fertilized were fertilized with'-ammcnium pulphatOt 



.i «l li lli l|l i : « |. n » 1 *1 1 



1/ Vial, ^ E, E» Relation of trtc Retail Price and Omwnteod Analysis of 

 Mixed Fertilizers sold in Now York, 1923-ri927# Ftabilgbad in "Farm Economics, *» 

 No', 54, September 1938. Ifev/ York Stt:ito G-^ollegc of A^MVkltAxro^ Cornell Unl-» 

 versity, Itliaca, N* Y» 



