Sulfur tables

SULFUR TABLES

Table 1. Minimum sulfur fertilization suggestions for potatoes.

 
 

S Soil
ppm SO4-S

S to Broadcast
lbs/acre*

0-5

25

6-8

15

> 8

0

 
 
 

 Table 2. Ammonium sulfate on common scab, black scurf and yield when applied in-furrow at planting.

 
 

AS rate
lb/acre

Common Scab
% Tubers

Black Scurf
% Tubers

Effect on
US#1 Yield

0-210

Decrease

Slight Decrease

Increase

> 210*

No change

No change

No change

 

Table 3. Sulfur-containing soil amendments with the amount needed to give one (1) pound of sulfur (S).

 
 

Amendment

Pounds Needed for
One Pound of Sulfur

Elemental Sulfur, 99% S

1.00

Degradable Sulfur, 90% S

1.10

Sulfuric Acid, 98% H2SO4

3.06

Lime-Sulfuric Solution, 24% S

4.17

Gypsum, 18.6% S, CaSO4 x 2H2O

5.38

Ammonium Sulfate, 24% S. (NH4)SO4

4.12

Magnesium Sulfate, MgSO4

3.14

Potassium Sulfate, K2SO4

5.44

Epsom Salts, MgSO4 x 7H2O

7.86

Ferric Sulfate, Fe2(SO4)3

4.16

Ferrous Sulfate, FeSO4

4.74

Ferrous Sulfate, FeSO4 x H2O

5.30

Ferrous Sulfate, FeSO4 x 7H2O

8.69

Aluminum Sulfate, A12(SO4)3 x 18H2O

6.94

Ammonium Polysulfide, 45% S, (NH4)2 Sx

2.22

Ammonium Thiosulfate, 26% S, (NH4)2S2O3 + H2O

3.85

Calcium Polysulfide, 24% S CaSx + H2O

4.17

Sulfur Dioxide, 50% S SO2

2.00