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Saline

Catalogue: GRDC Updates (West)
KEYMESSAGES Lucerne is capable of using large amounts of saline groundwater but its rate of dry matter production decreases as groundwater salinity increases... Crop Updates is a partnership between the Department of Agriculture and Food, Western Australia and the Grains Research & Development Corporation 131.. Overall, autumn cleaning date proved to be very robust as serradella emerged over a very wide time period (April to August) at both sites...
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Catalogue: GRDC Updates (West)
On-row seeding enhanced P and K concentrations of wheat plants at early growth stages up to flowering, relative to between-row seeding, when the respective soil-test P and K concentrations were low and/or when MAP fertiliser was not banded at seeding... Mean wheat yields (i.e. average of 2 or 3 MAP fertiliser rates ranging from 0 to 50 or 80 kg ha -1) were: (a) 11-14 per cent lower with on-row seeding at Binnu (where wheat followed wheat in 25 cm rows); (b) 7 per cent higher with on-row seeding at Mullewa (where wheat followed barley in 30 cm rows); and (c) not different at Pindar (where wheat followed wheat in 30 cm rows)... Project No.: 67F Central Farming Systems Paper reviewed by: Linda Leonard Crop Updates is a partnership between the Department of Agriculture, Western Australia and the Grains Research & Development Corporation 73..
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Catalogue: Nuffield Scholar Reports
Finally to the numerous farmers, business people and researchers I met around the world that were also very generous with their time and knowledge, thank you... It is widely regarded that cactus is high yielding, highly palatable and a readily available source of carbohydrates but lacks crude protein and crude fibre to get the best performance out of cactus it needs to be supplemented with a cheap source of fibre and protein (Nefzaoui, Salem, Salem, 2000, p512 - 516)... Develop a farming operation where a normal budget would rely on less than 50% of traditional farming system to generate the income reducing exposure to financial risk in droughts...
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Catalogue: GRDC Final Reports
Where dryland salinity threatens the productivity of agricultural land there is a need for farmers to formulate considered responses... From the areas identified by farmers we noticed that mid and upper slope farmers have just as much area of concern (often brackish hillside seeps) and recent outbreaks on their farms as valley floor farmers... There is a need for farmers and catchment groups to invest greater effort in risk assessment and to link the need to know to the risk at given sites...
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Catalogue: GRDC Media
Messages obtained from farmers in a GRDC supported study on 27 farms in the Wallatin and O'Brien catchments 200 kilometres east of Perth are relevant to a large portion of WA's wheatbelt... The study recommended demonstration approaches to salinity management to enable farmers to draw objective conclusions about cost-effectiveness and critical success factors... The study concluded that CDI-type approaches can overcome knowledge constraints in managing salinity by fostering social learning, offering a structured process of trialling options so costs and benefits can be identified and avoiding past costly mistakes and "learning failures"...
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Catalogue: Ground Cover
Lorinda Hunt, development officer at DAFWA"s Three Springs office, says that when the trials began there was no agronomic data on controlling the weed, so the trials were entering unknown territory... Ms Hunt says that historically, growers considered that salt levels were only ever likely to worsen, so once salt started to encroach on their land they effectively locked up those paddocks and stopped cropping... Ms Hunt says that trials in 2004 showed that if ice plant is controlled on mildly saline land, a good clover and ryegrass pasture can be established...
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Catalogue: Nuffield Scholar Reports
The report proposes the idea that saline water, defined as having an electrical conductivity greater than 1.5 deciSiemens per metre (dS/m) (960 parts per million), has a part to play in filling the void of future losses of surface water... The aim of the report is to investigate if saline water can be successfully used without desalination, and what practices are required to reduce the effects of it on the crops and catchments they are applied to... Drip irrigation systems were by far the most common irrigation system using saline water...
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Catalogue: GRDC Final Reports
The rationale for the project was an increasing awareness that subsoil salinity is an underlying constraint to cereal production in many regions of southern Australia... Growers will have access to salt-tolerant cultivars of wheat and barley that will enable them to make more informed choices to improve the productivity and reliability of crop yields in salt-affected land... The three general mechanisms of salt tolerance in wheat and barley are the exclusion of salt, the tolerance of high internal salt concentrations in leaves ("tissue tolerance") and the tolerance of high external salt concentrations in the soil ("osmotic stress tolerance")...
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Catalogue: Broadacre Field Crops DAFF QLD
Subsoil acidity is becoming a real problem on many scrub soils and may be constraining plant growth... Toxicities of aluminium and/or manganese can reduce plant growth in acid soils... The rates of acidification in any soil type can be minimised by replacing the basic nutrients removed in crop produce (e.g. calcium, magnesium and potassium) as part of a fertiliser program, and by minimising the losses of soil nitrate by leaching via appropriate rotations of legume and cereal grain crops...
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Catalogue: Broadacre Field Crops DAFF QLD
Subsoil acidity is becoming a real problem on many scrub soils and may be constraining plant growth... Toxicities of aluminium and/or manganese can reduce plant growth in acid soils... The rates of acidification in any soil type can be minimised by replacing the basic nutrients removed in crop produce (e.g. calcium, magnesium and potassium) as part of a fertiliser program, and by minimising the losses of soil nitrate by leaching via appropriate rotations of legume and cereal grain crops...
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