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Nutrition and fertiliser

Catalogue: GRDC Factsheets
Water testing should be done on a regular basis when using bore water, water from streams and rivers, reticulated (piped) water sourced from ground water, and water stored in unlined dams or concrete tanks... While pH levels and total hardness can be assessed in the field using water test strips or simple titrations (jar tests), other measurements will typically require laboratory analysis... Salinity is usually measured as the electrical conductivity (eC) of the water...
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Catalogue: GRDC Factsheets
Water testing should be done on a regular basis when using bore water, water from streams and rivers, reticulated (piped) water sourced from ground water, and water stored in unlined dams or concrete tanks... While pH levels and total hardness can be assessed in the field using water test strips or simple titrations (jar tests), other measurements will typically require laboratory analysis... Salinity is usually measured as the electrical conductivity (eC) of the water...
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Catalogue: GRDC Factsheets
Water testing should be done on a regular basis when using bore water, water from streams and rivers, reticulated (piped) water sourced from ground water, and water stored in unlined dams or concrete tanks... While pH levels and total hardness can be assessed in the field using water test strips or simple titrations (jar tests), other measurements will typically require laboratory analysis... Salinity is usually measured as the electrical conductivity (eC) of the water...
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Catalogue: Ground Cover
By Kellie Penfold Gypsum and urea, as a traditional fertiliser combination for growing canola, is coming under scrutiny with a research project's early findings suggesting ammonium sulfate may be more beneficial... Traditionally growers use low rates of gypsum (calcium sulfate) applied before sowing, and then meet the demand for nitrogen (N) with a combination of at-sowing and top-dressed urea... At Nurrabiel, neither urea nor gypsum alone or in combination gave a significant canola yield response, but when N and S were supplied together as ammonium sulfate yields increased by almost 30 per cent (1.83 tonnes per hectare urea/gypsum compared with 2.36t/ha ammonium sulfate)...
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Catalogue: GRDC Final Reports
A series of projects were undertaken to develop the potential of lupins as a feed grain for the aquaculture sector and to facilitate the adoption of lupins by this feed sector... The results of the work showed that inclusion of lupin kernel meals increased the rate of gut transit of the feed compared to the effects induced by the inclusion of soybean meal or a lupin protein concentrate... A total of eight products from CBH-Group and Weston Technologies were evaluated over a two-year period...
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Catalogue: Ground Cover
Soil phosphorus can be taken up by wheat roots directly or through beneficial arbuscular mycorrhizal fungi (AMF)... Professor Andrew Smith and his team, which includes Professor Sally Smith, Dr Maria Manjarrez-Martinez and Dr Ann McNeill from the University of Adelaide, are using this technique to demonstrate how important the contribution of mycorrhizas is to phosphorus nutrition and whether break crops can be used to maximise AMF populations... The research team established a field experiment at the beginning of this crop season to follow up and quantify the amount of phosphorus transferred by AMF. Results can also be used to measure the contribution of phosphorus uptake by wheat with different fertiliser applications and to inform new breeding strategies...
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Catalogue: GRDC Media
A new soil test for phosphorus is showing considerable potential for use in Australian calcareous soils, with the help of a PhD project supported by growers and the Australian Government through the Grains Research and Development Corporation (GRDC)... The test, diffusive gradients in thin films (DGT), was originally developed for testing metal contamination in the soils and waterways of the United Kingdom, but with some modifications it has been found to correlate well with plant response to applied phosphorus in deficient Australian soils... Photo caption: "Dr Sean Mason prepares to test soil samples for available phosphorus" Dr Mason found that DGT readings were more accurate than other tests in calcareous soil types in laboratory trials...
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Catalogue: GRDC Updates
Have a well thought out plan in regard to nitrogen application and amend it as the season unfolds... With the ability to measure starting soil moisture and nitrogen levels and a variety of ways in which we can apply nitrogen to a crop, planning for nitrogen input can start before a seed has hit the ground... A crop should be assessed for disease or other nutrient deficiencies prior to spreading additional nitrogen...
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Catalogue: Ground Cover
CliMate displays data such as stored soil water and nitrogen... CliMate estimates stored soil moisture based on individual paddock data, such as the length of the fallow period, the amount of soil organic matter, stubble load, soil type and rainfall received during the fallow period... Research undertaken over several years by NSW DPI staff such as Col McMaster and Barry Haskins (now a private researcher/consultant) noted that delayed or missed fallow weed control opportunities quickly led to loss of stored soil moisture, as well as loss of more than 40kg/ha of available soil nitrogen...
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Catalogue: Ground Cover
CliMate displays data such as stored soil water and nitrogen... CliMate estimates stored soil moisture based on individual paddock data, such as the length of the fallow period, the amount of soil organic matter, stubble load, soil type and rainfall received during the fallow period... Research undertaken over several years by NSW DPI staff such as Col McMaster and Barry Haskins (now a private researcher/consultant) noted that delayed or missed fallow weed control opportunities quickly led to loss of stored soil moisture, as well as loss of more than 40kg/ha of available soil nitrogen...
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Assigned key phrases

acidity (10)
fertiliser (261)
nitrogen (353)
nitrogoen (3)
nutirition (99)
nutrient (109)
nutrients (6)
nutrition (81)
phosphate (146)
phosphorous (124)
phosphorus (88)
potassium (124)
rhizobium (27)
sodium (11)
sulfur (35)
sulphur (13)