Category

GRDC Stubble Project

The Risk of Summer Inversions

The most effective strategy for conserving moisture during the summer fallow period is by effectively controlling summer weeds. Although there may be some key issues that you will encounter when applying chemicals during this period. Surface Temperature Inversions In cool night conditions airborne chemicals concentrate near the surface and winds can move the droplets away...

Maximising Spray Results in Stubbles

Nozzle Setup: Aiming to get a double overlap occurring with your spray nozzle output. Should be set up at a 50 cm spacing with a 10 degree fan angle When stubble is introduced into the system the stubble provides a false floor. This leads to the spray jet overlap occurring within the stubbles canopy. This...

NSW DPI Stubble Grazing efficiency

Stubble efficiency – Stubble GrazingCondobolin 2015 Key points Treatment 1, Nil grazed, moderate stubble yielded the highest, (2.18 t/ha).No significant difference in Total Plant Available Water, the majority of stored water was below the 50 cm depth.There was a significant difference between the eight treatments when comparing available soil nitrogen.There was a significant difference in...

Impact of Windrow Burning on Mice Populations

Windrow burning is commonly used for the control of weeds in retained stubble systems. By removing the spinners from the rear of the header the stubble, trash and weed seeds are directed into a narrow windrow. From here the farmer can elect to burn the stubble thus destroying the weed seeds in the process. The...

Crop Rotations (2014)

The Merriwagga tillage and rotational trial was established in the year of 1999. The trial aimed to compare no till farming techniques against conventional farming methods over, wait for it a whopping five different crop rotations. The trial is currently managed by Agrow agronomy in a partnership with central west farming systems. In the past...

The Use of Cover Crops in NSW

In  2009, 95 farmers in the mixed cropping zone of NSW were surveyed in relation to their use of pasture species with perennial pastures being a key focus. The survey found that 52% of the land was under crop, 29% contained perennial pasture and 19 % contained annual pastures. Stemming on from the survey was...

Good Stubble or Bad Stubble Loads

Background Stubble retained systems has began to become common practice throughout the central western area. This has lead to the focus of current research being directed towards maintaining the profitability and environmental sustainability of retained stubble systems. The major agronomic drivers for the adoption of stubble retained farming systems has been minimising the risk of...

Fallow Periods

Fallow periods and green manures are usually used by farmers to conserve moisture, mineralise and produce nitrogen as well as to control weeds. So its to no great surprise that a well managed fallow period can have significant impacts on yield. Key Points:  Long fallows and green manure crops are valuable managment tools that increase...

2015 Report – Merriwagga Long Term Tillage and Rotational Trial

Stubble efficiency – Stubble GrazingCondobolin 2015 Key points No-till treatments, for all rotations, were slightly higher-yielding than the conventional tillage treatments for wheat. The yield of peas, in rotation 2, was very low in this trial as a result of the season and Sakura® damage.Rotations including a fallow, such as the WFW treatment, had lower...

2015 CSIRO Collaborative Project

Cultural control strategies: the impact of stubble management on invertebrate pests in dryland cropping systems 2015 trial Key points Pest density was very low throughout the course of the trial and there was no obvious impact of stubble management practices on ground-dwelling pest numbers.High numbers of beneficials (mostly ants and spiders) were active in the...
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