To calculate the corresponding application rate of a

given liming material:

Actual amount of liming material =

Suppose the recommendation calls for 2000 pounds
per acre of total oxides. Then, to convert to the
recommendation to CCE:

2000X1.79 = 3580 lb./acre CCE Selection of Liming Material.Selection of an

appropriate liming material depends on the degree of soil
pH correction required and the need to replenish soil Ca
and Mg. Fine sized liming materials are recommended
when rapid neutralization of soil acidity is desired.
Medium and coarse sized liming materials are best suited
for maintenance of soil pH once the desired soil pH range
has been attained through the use of fine sized liming
material.
Select the appropriate liming material based on its Ca
and Mg concentrations and the relative need for these
nutrients in the soil. Because of the problem of bitter pit
and cork in apples associated with inadequate Ca levels in
the fruit, it is very important that soil Ca levels be given
consideration. Soil and leaf tissue samples should be
taken and analyzed and corrective lime or gypsum
treatments made, where necessary, to make sure that soils
are kept adequately supplied with Ca.
In general, the need for a liming material containing
Mg occurs more frequently on sandy soils. Fine textured
(loam and silt loam) soils frequently need liming
materials with a high Ca and low Mg concentration.
NOTE: Only calcitic limestone should be used on
soils that test medium or higher for magnesium.
Never use high magnesium or dolomitic lime on soils
that test medium or high in magnesium content.
To select the appropriate liming material, compare
the soil test Ca and Mg values on the soil test report.
When the soil test Mg level is below optimum, it is
important to choose a liming material that contains a
significant concentration of Mg. If the soil test level is
below optimum- very low or low, use a liming material
that has a minimum concentration of 9 % Mg. If the soil
Mg level is below optimum- medium, use a liming
material that has 3.6 to 9% Mg. If the soil Mg level is
optimum or above optimum, use a liming material that
has less than 3.6 % Mg.

(Soil test CCE recommendation)

(% CCE of liming material)

X 100

To avoid the calculations refer to Table 5 to convert
soil test recommendations for pounds CCE/acre to pounds
of the actual liming materials to be applied. Application
rates may be rounded off to the nearest quantity (nearest
500-lb/acre) practical for spreading equipment.

Although liming recommendations should now be
given in lbs CCE/acre, recommendations that are given as
total oxides can be converted to CCE by multiplying by
1.79.

1998 New Jersey Commercial Tree Fruit Production Guide

19