Target pH should be take into account the tolerance of all species to be grwon and the need to affect the pH of the subsoil. Generally need to target pH 5.5 (CaCl2) or 6.5 (water) to target subsoil acidity.

Texture Class Clay %
Sand 5
Loamy Sand 7.5
Clayey Sand 10
Fine Sandy Loam 15
Loam Fine Sandy 15
Sandy Loam 15
Light Sandy Clay Loam 20
Fine Sandy Clay Loam 25
Loam 25
Clay Loam 25
Sandy Clay Loam 25
Silty Loam 25
Silty Clay Loam 32.5
Light Clay 37.5
Sandy Clay 37.5
Silty Clay 37.5
Light Medium Clay 42.5
Medium Clay 50
Heavy Clay 70
Peat 70

<5% - Highly Sensitive
Lucerne Barrel, Strand and Burr Medic, Balansa, Burseem, Strawberry and Persian Clover
Buffel, Tall Wheat Grass
Barley, Canola
Frech Beans, Peas


< 10 % - Sensitive
Red Clover, Snail and Murex Medic, Caucasian and Kenya White Clover
Red Grass, Wallaby Grass, Pharlaris
Wheat


<15 % - Moderately Tolerant
Tall fescue, Pioneer Rhodes Grass, Rye Grasses,
Woolly pod vetch, Rose clover,Haifa White clover

<20% - Tolerant
Subterranean clover,
Oats, Maize, White lupin, Triticale (some varieties)

<30 % - Highly Tolerant
Cocksfoot, Consol Lovegrass, Paspalum, Kikuyu,Microlaena stipoides, Danthonia rasemosa, Common Couch
Yellow and Slender Seradella, Marku Lotus
Oats (some varieties), Cereal rye, Sugarcane
Blueberry

Reference
Cregan P (1980) Ag Bulletin 7 NSW DPI

pH buffer capacity
Uses the relationship from Merry (1997) to calculate pHBC.

t CaCO3/ha 10cm = 0.31 + 0.0.282 %TC + 0.0546eCEC (n = 158; R2 = 76.2%)

TC%=OC% x 1.3

Clay % from Field texture

Bulk density
Calculated from description in: A simple model to evaluate acidic and alkaline processes in dripper irrigated
vineyards.
Richard Merry1, Ben Thomas2, Ben Robinson2 and Doug Reuter3
SuperSoil 2004: 3rd Australian New Zealand Soils Conference, 5 – 9 December 2004, University of Sydney, Australia.

Rate displayed is the greater of that required to reduce aluminium to tolerance limit for the species selected or raise the pH to the target nominated.

NV is the ability of a unit mass of lime to change soil pH. This takes into account the chemical composition (NV) but not particle size distribution of a lime

Total ENV is the ability of a unit mass of lime to change soil pH. This takes into account the chemical composition (NV) and particle size distribution of a lime

Use either the ENV or NV from the supplier use or the calculated ENV where the detailed product infomation is available.

Price ex Supplier

Spreading and loader

NV is the ability of a unit mass of lime to change soil pH. This takes into account the chemical composition (NV) but not particle size distribution of a lime

Total ENV is the ability of a unit mass of lime to change soil pH. This takes into account the chemical composition (NV) and particle size distribution of a lime

Use either the ENV or NV from the supplier use or the calculated ENV where the detailed product infomation is available.

Price ex Supplier

Spreading and loader

NV is the ability of a unit mass of lime to change soil pH. This takes into account the chemical composition (NV) but not particle size distribution of a lime

Total ENV is the ability of a unit mass of lime to change soil pH. This takes into account the chemical composition (NV) and particle size distribution of a lime

Use either the ENV or NV from the supplier use or the calculated ENV where the detailed product infomation is available.

Price ex Supplier

Spreading and loader