Sunday, March 27, 2016

Soil Testing Information

Post Harvest Grapevines EL 45.
The time has come once again to accurately perform soil testing in grapevines, olives and almonds.

We have completed soil testing with some growers already, and have been undertaking extensive soil amendment work

It is recommended that soil tests are performed on existing vineyards every 2-3 years to accurately assess changes over time and to avoid running in to large deficiencies down the track.

Soil tests are particularly important where growers are using underground water sources that are high in sodium, or salts. If sodium levels are build up in your topsoil, 10-15cm, this will reduce crop health, quality and yield.

Salinity problems are caused from the accumulation of soluble salts in the root zone. These excess salts reduce plant growth and vigor by altering water uptake and causing toxicities.

Soil Test Options. 


Top Soil Test - Soil nitrate, phosphorus, potassium, sulphur, copper, zinc, manganese, iron, boron, pH(water), pH(CaCl2), organic carbon, salinity, chloride, aluminium, exchangeable sodium %, and exchangeable sodium, calcium, magnesium, and potassium.

A soil test example of a soil with high sodium and salinity.
  
Sub Soil Test - pH(water), pH(CaCl2), salinity, chloride, boron, organic carbon, exchangeable sodium %, and exchangeable sodium, calcium, magnesium, and potassium.

Microbiological Soil Test - Numbers and types of micro-organisms in your soil.
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Contact DJ’s for information and costs per hectare for certified organic fertilizer, mineral fertilizer and gypsum. DJ’s also specialize in custom blending for specific soil types and issues.

For more information - djs@djsgrowers.com.au

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