Rick Llewellyn

Affiliations

(1) CSIRO (19) CSIRO Agriculture (4) MSF (1) UoA (1)
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18 total results found Matching the current search filters and located within the visible map area.

17 results have a trial report available
11 results have export data available
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Aims:

To to establish if;

  • Supplying 50 kg DAP/ha with seed had a consistent yield penalty, and
  • If wheat yield could be improved by altering the placement of sowing fertiliser.
Crop type: Wheat 3 trials Fertiliser Method
Karoonda, SA Loxton, SA Ouyen, VIC
Research organisaton
Funding sources

Aims:

To address the following question:

Are there Zn containing N fertiliser products that have a consistent produciton or N use efficiency advantage over urea?

Crop type: Wheat 1 trial Fertiliser Timing
Loxton, SA
Research organisaton
Funding sources

Aims:

To test on-row or inter-row seeding with and without a pre-emergent herbicide package of trifluralin + metribuzin

Crop type: Wheat 1 trial Herbicide Method
Karoonda, SA
Research organisaton
Funding sources

Aims:

There are major opportunities to improve crop performance on Mallee sands, opportunities to invest in the transformation of poor sands and opportunities to improve yield through more targeted agronomy of sandy soils. In 2015 wheat plant establishment was significantly better on non-wetting sand (crest and dune) plots that received no fertiliser … read more

Crop type: Wheat 1 trial Fertiliser Application
Karoonda, SA
Research organisatons
Funding source

Aims:

Sandy soil types of the Northern Mallee often underperform despite good weed management and increased inputs of nitrogen and sulfur. There is still a yield gap that can be addressed, with anecdotal evidence of unused water commonly remaining in the soil at depths of approximately 60cm at harvest.
After several years of demonstrating the v… read more

Crop type: Wheat 1 trial Fertiliser Type Fertiliser Rate
Loxton, SA
Source Data Unavailable
Research organisatons
Funding source

Aims:

Sandy soil types of the Northern Mallee often underperform despite good weed management and increased inputs of nitrogen and sulfur. There is still a yield gap that can be addressed, with anecdotal evidence of unused water commonly remaining in the soil at depths of approximately 60cm at harvest.
After several years of demonstrating the v… read more

Crop type: Wheat 1 trial Fertiliser Type
Ouyen, VIC
Source Data Unavailable
Research organisatons
Funding sources

Aims:

Sandy soil types of the Northern Mallee often underperform despite good weed management and increased inputs of nitrogen and sulfur. There is still a yield gap that can be addressed, with anecdotal evidence of unused water commonly remaining in the soil at depths of approximately 60cm at harvest.
After several years of demonstrating the v… read more

Crop type: Wheat 2 trials Fertiliser Rate Fertiliser Timing
Loxton, SA Ouyen, VIC
Source Data Unavailable
Research organisatons
Funding sources

Aims:

Brome grass is the costliest weed to grain production in the Mallee region despite herbicide resistance being relatively low. This paper brings together research trials from 2015 and 2016 addressing the potential for greater efficacy of pre-emergence herbicides on brome and the potential for better crop competition on non-wetting sands. For grow… read more

Crop type: Wheat 2 trials Herbicide
Karoonda, SA
Source Data Unavailable
Research organisatons
Funding source

Aims:

Sandy soil types of the Northern Mallee often underperform despite good weed management and increased inputs of nitrogen and sulphur. There is still a yield gap that can be addressed, with anecdotal evidence of unused water commonly remaining in the soil at depths of approximately 60cm at harvest. In 2014 we set in place a diagnostic procedure t… read more

Crop type: Wheat 1 trial Fertiliser Type Fertiliser Rate Fertiliser Timing
Loxton, SA
Research organisatons
Funding sources

Aims:

To strengthen our knowledge on seasonal changes in the (1) biological value of stubble (2) mineralisation: immobilisation balance (ratio) and (3) the direct supply of N from stubble to crops as influenced by stubble management.

Crop type: Wheat 6 trials Fertiliser Type Fertiliser Timing
Temora, NSW Karoonda, SA Horsham, VIC
Research organisatons
Funding sources

Aims:

Trials in the Mallee have highlighted the benefits of strong early crop establishment and nutrition, particularly on sands. Non-wetting (or water repellent) sands have presented additional challenges. Global Positional System (GPS) guided seeding is increasingly common and presents the opportunity for strategic placement of seed in relation to l… read more

Crop type: Wheat 1 trial Sowing Timing Sowing Method
Loxton, SA
Research organisatons
Funding sources

Aims:

Trials in the Mallee have highlighted the benefits of strong early crop establishment and nutrition, particularly on sands. Non-wetting (or water repellent) sands have presented additional challenges. Global Positional System (GPS) guided seeding is increasingly common and presents the opportunity for strategic placement of seed in relation to l… read more

Crop type: Wheat 1 trial Sowing Timing Sowing Method
Karoonda, SA
Research organisatons
Funding sources

Aims:

To test pre-emergence herbicide options for brome grass on Mallee sand.

Crop type: Wheat 1 trial Herbicide Application
Karoonda, SA
Source Data Unavailable
Research organisaton
Funding source

Aims:

To identify opportunities to reduce risk and increase profitability by evaluating the soils and conditions where continuous cereal systems perform best and where inputs can be most cost-effectively targeted

Crop type: Wheat 6 trials Fertiliser Rate Soil Type
Karoonda, SA
Research organisatons
Funding source

Aims:

To determine whether the potential benefits of sowing on last year’s crop row to harvest any extra water and nutrition can outweigh risks of increased disease pressure and lead to better crop performance on Mallee soil types

Crop type: Wheat 1 trial Soil Type Sowing Timing
Karoonda, SA
Research organisatons
Funding sources

Aims:

To identify opportunities to reduce risk and increase profitability by evaluating the soils and conditions where continuous cereal systems perform best and where inputs can be most cost-effectively targeted. Trials were established at Karoonda (Lowaldie) to test soil-specific strategies and tactics for reducing risk and increasing profitability … read more

Crop type: Wheat 1 trial Crop Rotation Fertiliser Rate
Karoonda, SA
Trial Report Unavailable Source Data Unavailable
Research organisatons
Funding source

Aims:

To test the persistence and performance of summer-active perennial grasses in a Mallee environment and the potential for pasture cropping.

Crop type: Wheat 2 trials Crop Type
Karoonda, SA Hopetoun, VIC
Research organisaton
Funding sources
CRC <abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Aims:

Although cereal-intensive cropping has been demonstrated to be productive in the Mallee, there are situations where grass weeds, disease and high fertiliser costs may necessitate a break crop option. This trial was designed to evaluate the effect of a range of break crops and pasture over a range of mallee soils over 3 years of subsequent wheat.… read more

Karoonda, SA
Source Data Unavailable
Research organisatons
Funding source