Three demonstration sites were established over the 4 years looking at the interaction of lime rate and cultivation in changing subsoil pH. Sites were located in Warrdarge and North Badgingarra. Spading and mouldboarding to incorporate lime are both relatively expensive methods of increasing subsoil pH and reducing non-wetting. These NACC funded demonstrations aimed to asses the effectiveness of modified one-way plough at achieving subsoil pH change.
Potassium (K) is often supplied as topdressed MOP before seeding. However, this may not be the most effective method of application since the K may be pushed into slower-wetting inter-rows by seeding bars. In this trial, K was supplied in differing rates by topdressing MOP immediately after seeding PSPE, after emergence, or in a full NPK compound granule, Vigour, drilled at seeding with or without supplemental MOP to examine effects on germination and emergence and later grain production.
The purpose of the canola NVT trials at Dandaragan is to provide growers and their advisors with independent information on the performance of newly released varieties of canola relative to the current commercial varieties grown in the area. The intention is to have two years of data available on the NVT website at the time each new variety is made available for commercial production. The 2016 trial was located in Dandaragan on brown grey sand to yellow brown sand at depth.
This report describes results from a trial which was one of a series of trials at a range of locations, investigating the efficacy of seed dressing and fertiliser applied fungicides on the time of onset, rate of development and yield impact of wheat powdery mildew. This trial was conducted in Moora. A major concern for wheat producers is the susceptibility of several popular varieties, the time of onset of disease requiring early intervention in the cropping season and subsequent concerns over requirements for multiple foliar applications.
Summit’s In-Season Nitrogen Calculator aims to calculate a precise N rate to maximize yield potential of a paddock where a crop is starting to run into N limitations, using NDVI as a real-time growth measurement. It is designed to utilise comparisons between crop growth without N limitations beside paddock practice to determine optimal N application for yield and returns. This trial is part of a series that aims to evaluate the accuracy of the N Calculator’s recommended N rates and predictions of yield in various conditions and crops. The trial was conducted in Moora on sandplain soil.
The purpose of the canola NVT trials at Dandaragan is to provide growers and their advisors with independent information on the performance of newly released varieties of canola relative to the current commercial varieties grown in the area. The intention is to have two years of data available on the NVT website at the time each new variety is made available for commercial production. The 2016 trial was located in Dandaragan on brown grey sand to yellow brown sand at depth.
This trial was conducted on gravelly loam soil in Badgingarra by Bayer Crop Science. It was designed to compare the efficacy of Aviator® Xpro® to commercial standards for sclerotinia control and to compare yield and return on investment/ha. All treatments significantly reduced sclerotinia infection levels compared to the untreated. This trial also showed increasing the rate of fungicide increases early activity on active disease but will also increase the length of protection from reinfection.
This trial aims at characterizing the short and long term effects of ripping a mechanical hardpan to different soil depths. Understanding the interaction of managing mechanical hard pans with season is economically important to growers particularly in how they manage nitrogen fertilizer inputs. This experiment was established in Dandaragan on a deep yellow sand with compact and moderately acidic subsoil.
Anecdotal evidence shows that wheat varieties released in WA are gradually changing from floppy to more erect leaves. This change in canopy architecture (mainly leaf erectness) could have significant impact on yield across the rainfall zones of WA. In other crops like rice and corn, an erect leaf canopy has significantly increased yield by 20% or more. We believe this change in canopy architecture might have implications for improving wheat yield and that leaf erectness may be a useful trait for future breeding.Conducted on yellow sand in Moora, this experiment was designed to test the effect of wheat canopy architecture on wheat yield.
The purpose of the wheat NVT trials at Dandaragan is to provide growers and their advisors with independent information on the performance of newly released varieties of canola relative to the current commercial varieties grown in the area. The intention is to have two years of data available on the NVT website at the time each new variety is made available for commercial production.The 2016 trial was located in Dandaragan on brown grey sand to yellow brown sand at depth.
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