agricultural gypsum

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Golf Course Gypsum

August 2nd, 2010|

REGYP supplies high quality gypsum for golf courses in NSW. The gypsum products are ideally suited for use on golf course fairways, greens, general agriculture, gardening, lawns and in landscape applications. REGYP can supply low cost: - high quality mined gypsum (purity 94%+), - prilled recycled gypsum (purity 90%+), and - super soluble solution grade

Solution Grade Gypsum – What is it?

December 1st, 2009|

The use of gypsum(1) as a soil amendment and fertiliser has been well documented for over 200 years. Historically, gypsum has been spread over the ground using mechanical or manual methods. Depending on the situation, this relatively coarse gypsum has often been incorporated into the soil to hasten its effect. Unfortunately, in many cases gypsum

Effect of gypsum on subsoils

October 14th, 2009|

Many soils in NSW have sodic clay subsoils of low permeability. These soils waterlog easily after heavy rain or irrigation. Under these circumstances subsoil oxygen levels remain low for long periods during which root development is seriously restricted. Waterlogging also favours the development of root diseases, including crown rot and Phyrophihora. and the loss of

Predicting soil response to gypsum

September 19th, 2009|

Soils that are most likely to show economic responses to gypsum application have the following features in the topsoil, subsoil or both: high clay content—greater than 30%. particularly greater than 40%, high sodicity level—ESP greater than 5. particularly greater than 10, low salinity level—electrical conductivity of a 1:5 soil: water suspension (EC I:5) less than

Canola crops benefit from gypsum

April 26th, 2009|

Tests have shown that canola removes approximately 10 kg of sulphur from the soil for each tonne of production. Therefore at least that amount of sulphur must be available to the canola plant to achieve maximum production. Gypsum is a very economical source of both calcium and sulphur. The sulphur in the form of sulphate

Gypsum application rates

April 25th, 2009|

Gypsum (calcium sulphate) is a very economical source of both calcium and sulphur. The sulphur in the form of sulphate is readily absorbed by the plant. Application rates will vary according to nutrients already present in the soil and a soil test to check for all nutrient requirements is highly recommended. However, 0.5 to 1

Gypsum application methods

April 24th, 2009|

The three important factors in applying gypsum are method, rate and frequency of application. In considering these factors much depends on whether the agriculture is dryland or irrigated, whether the topsoil or subsoil (or both) is to be treated and the nature and extent of the problem. General Application Methods 1. Irrigation, the most immediately

Determining sulphur application cost

April 24th, 2009|

To calculate the fertiliser application rate required for a particular nutrient application rate, use the formula: ReGyp screened gypsum products contain approximately 17% of sulphur (S). Application Rate x % Sulphur = Sulphur application rate (kg/ha) Sulphur Kg/ha = 1000 kg/ha x 17 = 170 kg/ha ReGyp screened gypsum products contain approximately 17% of sulphur

Calculating landed cost of gypsum

April 23rd, 2009|

To obtain the total cost of supply and application of gypsum per tonne of pure CaSO4.2H2O, the following information is required: A. the landed cost at the farm gate of gypsum per tonne (gypsum + freight); B. the cost of spreading or mixing in irrigation water per tonne of gypsum; C. the purity, as percentage