trials

 To further test the response of different wheat varieties to varying rates and timings of Nitrogen applications. 

The project objectives were to: determine what effect stubble load and type had on YLS infection. Determine whether changing cultural practices would aid in reducing YLS incidence. Investigate the effect of fungicide application timing and nutrition on YLS severity.

To demonstrate the effect of water rates and droplet size on the efficacy of pre-emergent herbicides, and to assess the impact of increased ground speed on the efficacy of Sakura in retained stubble systems in the medium rainfall zone of South-East of South Australia.

During 2013 harvest Mr Roger Bolte of Wyalong established windrows in paddocks in an attempt to help manage herbicide resistant ryegrass populations.

To observe and record what impact varying stubble heights have on wind speed and therefore soil erosion and crop vigour

To determine if differences in early crop growth and development of crops under different stubble management strategies was due to differences in early-season nitrogen (N) supply.

To determine if differences in early crop growth and development of crops under different stubble management strategies was due to differences in early-season nitrogen (N) supply.

To discuss benefits and practicalities of individual growers weed management tactics; and to assist others to decide if adopting similar methods would be beneficial on their property.

To demonstrate the pros and cons of different stubble/ soil management and establishment treatments.
 

To investigate the dynamics of N in stubble-retained systems. 

To provide growers with the tools needed to adopt site-specific weed management (SSWM) strategies as a result of a commercially viable weed ID and mapping system being demonstrated.

To identify nutrient and stubble management practices which result in increased soil organic matter.

To compare five control practices to determine the best weed management strategy for summer months on this particular soil type.

To measure the interaction between stubble management, frequency of rainfall events and fertiliser nitrogen on:

• the retention of soil water accumulated outside the growing season.
• the value of stored water to crop physiological traits and yield.

To measure the interaction between stubble management and soil moisture on:

1. the retention of soil water accumulated outside the growing season, and
2. the value of stored water to crop physiological traits and yield.

To measure ryegrass populations under continuous cropping with a range of stubble and tillage practices.

To determine the effect of stubble type (wheat, peas and canola) and load (from Decile 2, 5 and 8
seasons) on subsequent soil and crop nutrition.

To understand the impact of differing wheat stubble loads on the establishment of canola under a range of locally relevant sowing practices.

Determine if there is an interaction between temperature and various rates of stubble and outline whether increased stubble loads change the severtiy and duration of frost.

Determine if there is an interaction between temperature and various rates of stubble and outline whether increased stubble loads change the severtiy and duration of frost.

To investigate the effects of sowing various crops into different stubble management techniques: burnt, burnt and worked, mulched, slashed and standing.

To investigate the effects of sowing barley and peas into a wheat stubble (standing, slashed and burnt).

To determine the nutrient loss from stubbles of various crop types following summer rainfall.

To determine the effect of stubble management (standing, slashed or burnt) on the crop safety of pre-sowing herbicides, and their efficacy against Group A-resistant annual ryegrass.

• To maximise yield of new field pea varieties through the identification of optimum sowing dates.

To quantify the impact of stubble on the severity and duration of frost through canopy temperature and grain yield.

To investigate the impact of stubble on frost severity and duration.

Over recent seasons adoption of stubble retention has plateaued in the Mallee and some growers are reducing the area of stubble retained until the next growing season. An experiment was undertaken to identify potential improvements in stubble management so this trend could be reversed. The experiment examined how different amounts and types of stubble impact on subsequent water availability and crop yield.

All four trials were aiming to evaluate what alternative stubble retention practices can be implemented into the cropping system, without
incurring yield penalty or significant cost to the grower.

To explore the issues that impact on the profitability of retaining stubbles across a range of environments in southern Australia with the aim of developing regional guidelines and recommendations that assist growers and advisors to consistently retain stubbles profitably.

To demonstrate the impact of different stubble management techniques on soil biota activity and nutrition demands would be monitored using the same fertiliser applications in crop and by comparing yields. In subsequent years the effect of different treatments will be monitored.

To investigate the influence of stubble management and rate on the duration, severity and frost damage in frost prone parts of the landscape in the Mallee and Wimmera regions.

To maintain the profitability of stubble retained systems by identifying key issues that are affecting the level of profitability with growers, and then through utilising existing research and conducting locally specific trial and extension work assist growers to overcome these
issues.

To develope regional guidelines and recommendations that assist growers and advisors to consistently retain stubbles profitably.

This project aims to maintain the profitability of stubble retained systems by identifying key issues that are affecting the level of rofitability with growers, and then through utilising existing research and conducting locally specific trial and extension work assist growers to overcome these issues.

To determin the effect of grazing and burning stubbles on grain yield and quality in no-till and zero-till controlled traffic farming systems in SNSW.

To evaluate the impact of cereal stubble height on fallow water efficiency.

To investigate how differing summer farming practices influence stored water and how plant available water may influence grain yield potential and grain quality attributes in the low rainfall area in central NSW.

To investigate if stubble/seeding direction and management (plus or minus stubble) effects lentil growth and yield

The demonstrate the effects of increasing N fertiliser rates on harvest index and stubble N%.

• To investigate the adaptability of a range of field pea varieties to varying sowing dates, crop
  topping and disease control.

• To maximise yield of new lentil varieties through the identification of optimum sowing dates and
  stubble management strategies to aid in disease management and harvestability.

• To investigate the interaction between genotype, sowing date and stubble management on grain yield, disease and agronomic characteristics of lentil in low rainfall modern farming systems of southern Australia.

• To investigate the adaptability of a range of lentil varieties and breeding lines to wider row
  spacing’s sown inter-row in to standing stubble compared with conventional cropping systems
  (narrow row spacing with slashed stubble).
• The interaction sowing times is also compared.

Issue upper EP farmers identified as a problem was sowing into retained pasture residue with pasture vines causing issues with blockages at sowing and uneven germination. The trial at Mount Cooper was designed to compare crop establishment and production, and weed and pest control effectiveness in the presence and absence of legume pasture residues. Project: EPF00001 Maintaining profitability in retained stubble systems - upper Eyre Peninsula.

• To compare and identify optimum sowing times of 6 field pea varieties to maximise grain yield and minimise impacts of disease.
• This trial also aims to investigate whether field peas could benefit from sowing into standing stubble compared to slashed stubble in low rainfall areas in terms of grain yield, disease infection or harvestability.

To assess the impact of the 2006 drought on soil resources of the Mallee region, and to identify preventative means for soil stabilization.

Work conducted by Clive Kirkby (CSIRO) has investigated the feasibility of increasing soil carbon levels with the use of balanced amounts of nutrients and incorporation of stubble.

The overall aim of the project was to raise awareness of farmers about how they can reduce green house gas emissions, sequester soil carbon and make improvements in farm productivity.

To investigate the potential of organic matter inputs to increase yield and improve soil health.