[Vor. 7 
322 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
E s 2 4 E LM N 
e z 
"UK ongo 
> 
£t St 
9t t 
22 
ez 
vw to 
e c=] LE] 
Ca S0, -Mg3(P04)5- FerO¿-EÑOz 
C880, -Mg4( P04) o” S01,.76,Ph, ~KH0, 
suea? uy [€ 
3UÍTOM U993D 
Ca504 -MgC03-Po?04 -EN03 
C&30,-Mg00,- S01, Po, Ph, -ENO., 
CaS04-MgNH¿POg=FePO4 
Ca 30, -MgNE, PO, -PeP04 -ENO; 
CaS0, -MgNH, 04-301, Pe, Ph, 
C&304 -MgYH, PO4-301,Fe, Ph, -KNO 
NU. - Caz( P04) 2-MgS0¿-FePO¿-EHOz 
ra Cag( P04) 2-MgS04-S0l,Fe.Ph, -Kli03 
Cag PO, ) ;-MgSO, -Pe, Citr,-KNO == 
"PX Lu at E E e 
` C&EPO,4 -MgS04 -FePO4 -KIi03 
y 
` 
S CaHPO4 -MgS04 801, Pe, Ph, -Ki03 
CaHPO,-MgSO4-Sol.0itr,-KN0g ` M» 
= a roce 
CaC0z-Mg3( PO4 ) 2=Fe80g-KE03 
Cag( P04) 2-C8504 -Mg3( 04) 27301, Fo, Ph, -ERO; 
Ca EPO, «05304 -Mgs( P04) 2 - S01, Fe, Ph, -ERO4 
C&C05-C&504 -Mg3( P04) 2-301, Pe, Ph, -EE02 
EH5 PO, -Cu( N05) 2-MgSO4 -PeP04 
Ca50,-Mg80, - S01, Fe, Ph, -KNO, 
KH2?04-C8 (105) »-Mg50, -PeS04 -EN0; 
Fig. 4. Yield of wheat in solutions of relatively insoluble salts. Continuous line 
is concentration 1 and broken line concentration I (see table 111). 
