You are here

nozzle

Categorised under:

Catalogue: GRDC Updates
Many grain growers that have planted crops such as chickpea using a one metre row configuration have turned off every second nozzle on the boom (based on a boom with standard 50cm nozzle spacing) and called this a 50% band for spraying insecticides and fungicides... In theory applying a 50% band would allow them to use half the amount of product that would have been required to spray the entire paddock using a traditional broad-acre boom set-up with every nozzle turned on... Many operators wanting to apply 50% bands to crops such as chickpeas could benefit from utilising narrower nozzle spacing's (such as 25 cm) and using 2 nozzles per row, with the nozzles offset from the plant row and the spray directed at the crop from either side...
Related categories:
Catalogue: GRDC Updates
Droplet size distribution for the nozzles that were tested... The airborne drift profile was also determined by quantifying the amount of spray that was deposited on collector strings that were located 2 metres downwind from the nozzle in the wind tunnel (Figure 2)... The work will be extended using spray tank mixtures of glyphosate and 2,4-D. Herbicide efficacy will also be assessed using a range of these nozzles on selected hard-to-control weed species (fleabane, common sowthistle, barnyard grass and climbing buckwheat)...
Related categories:
Catalogue: Ground Cover
Versatile nozzles give more spray options.. Selecting the most suitable nozzle size and type, and using rate-control functions, such as the minimum hold for pressure, speed or volume, can help reduce these problems," he says... With banded and shielded spraying becoming more popular, growers may need formulas to calculate application rates and select the most appropriate nozzle size and pressure," he says. "..
Related categories:
Catalogue: Ground Cover
Versatile nozzles give more spray options.. Selecting the most suitable nozzle size and type, and using rate-control functions, such as the minimum hold for pressure, speed or volume, can help reduce these problems," he says... With banded and shielded spraying becoming more popular, growers may need formulas to calculate application rates and select the most appropriate nozzle size and pressure," he says. "..
Related categories:
Catalogue: GRDC Media
NOZZLE KNOW-HOW: With more emphasis being placed on reducing the potential for spray drift, correct spray nozzle selection by grain growers is becoming increasingly important... Supported by the Grains Research and Development Corporation (GRDC), industry expert Bill Gordon, of Bill Gordon Consulting, says grain growers must carefully select the nozzles they intend to use and operate their sprayers to maximise efficacy while reducing the potential for spray drift... To assist growers in choosing the right nozzles, Mr Gordon has collaborated with the GRDC and consultant Graham Betts, of ASK GB, to develop a useful Nozzle selection for boom, band and shielded spraying Back Pocket Guide...
Related categories:
Catalogue: GRDC Updates
The operating speed of the sprayer is generally around 16 km/h (although some operators have mounted nozzles further back from the detector to increase that speed)... When selecting the most appropriate nozzle sizes for the weed seeker, we need to take into account the sprayed width (band) of each nozzle below the boom to determine the true application rate, that is the actual litres per sprayed hectare that each unit delivers... A common mistake with selecting nozzles for the Weed Seeker is to simply use the nozzle spacing of 38cm (distance apart on the boom) to calculate the application volume, this would only be correct if every unit was spraying continuously, we actually need to treat each unit and nozzle as an individual spot sprayer or band sprayer...
Related categories:
Catalogue: Ground Cover
Nozzle selection improves performance and saves money.. Changes to travel speed or application volume will change the type of nozzle that would be most suitable.. The process of selecting nozzles must take into account: the target, product type and label, which dictate the spray quality that should be used; the spray quality chosen then dictates acceptable conditions; pump capacity and plumbing, which determine the type and size of nozzle that should be used; travel speeds, which determine the range of operating pressures when automatic rate controllers are used; and the pressure range, which dictates the most appropriate nozzle for the situation and the controller settings required...
Related categories:
Catalogue: GRDC Updates
Using a 50cm nozzle chart, we find that we could use an 015 orifice at 7 bar, an 02 orifice at 4 bar or an 025 orifice at 2.5 bar... STEP 3: Identify the types of nozzles based on their operating pressure at the average speed, and identify the most appropriate minimum operating pressure for each nozzle type (the SPRAYWISE charts are useful for evaluating suitable minimum operating pressures for each of the nozzles).. For example you may choose a nozzle that is coarse at your lower volume range and medium at higher volume to go from fallow to in-crop in winter (such as a pre-orifice nozzle or low pressure air induction), and have another set that stays coarse through your volume range to do summer fallow and pre-emergent spraying (such as a coarser low pressure air induction)...
Related categories:
Catalogue: GRDC Factsheets
CHeCKS key PoinTs Always start with a clean machine... Use the self-test or test speed function to check the machine for leaks, restrictions and uniform output... By entering the desired L/ha and test speed, the operator allows the machine to operate at the simulated speed while the machine is stationary in 'manual' or 'auto' mode (some machines that utilise the GPS for determining travel speed may need to switch off the mapping capabilities to be able to use the simulated speed function)...
Related categories:
Catalogue: GRDC Updates (North)
I believe a key factor in the success of many of today's leading agricultural enterprises has been their ability to have their children acquire an education and experience that will equips them to make a meaningful contribution to the business... Early harvesting of grains has the potential to increase yields and grain quality in Australian grain growing areas... Previous research found the losses in wheat ranged from 0.18-2.5% of yield per day that harvest is delayed...
Related categories:

Pages