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Tools & Resources

Charts and Tables

Nufarm SprayWise Conversion Table

Are you confused about water rates in tree crop and vine applications?
Croplands and Nufarm have developed an easy to follow table to simplify the process and answer your questions on dosage rates converting L/ha to L/100m.

View/Download here or to obtain a free printed copy please contact Croplands on freecall Australia 1800 999 162 or New Zealand 0800 107 898.

ATR Hollow Cone Flowrate Chart

Please take care when selecting your nozzles for horticulture - not all nozzles are ISO colour coded in the same way as broadacre nozzles.

Refer to this chart to determine equivalent nozzles, also published in the Horticulture Buyers Guide

hort nozzles - equivalent

Note: Colours in table represent actual nozzle colour. ALBUZ TVI range is ISO colour coded.
The ALBUZ ATR is NOT ISO colour coded. The nozzle colour is NOT related to a specific output.

Coverage Assessment Tools

The appearance of a spray cloud interacting with the canopy does not provide accurate indications about coverage achieved in the canopy. More often than not the perception of the human eye is not even close to the real coverage achieved.

For example, the plumes of high volume applications will generally look reassuringly better than the hardly visible plumes from low volume applications. Yet, coverage with the lower volume is often equivalent or even better.

Hard to cover surfaces may not allow deposition and what looks superficially like an effective plume may not translate into actual coverage. Therefore, for any realistic assessment of spray coverage it becomes imperative to create some unbiased standard with the help of spray indicators!

Clay Markers

Their main use pattern is to protect fruits and leaves from sun burn. By far the most visible residues are produced by Surround which makes it an excellent product for the assessment of coverage. Spraying with Surround provides the advantage to see coverage over the entire canopy as a whole as well as in detail.
Uneven banding or shading in the canopy can be picked up very effectively. Surround is the best method to demonstrate excessive run-off.  An assessment can be carried out soon after application, once the clay marker has dried. The sprayer can be modified according to shortcomings.
This continuous workflow makes working on the set-up very effective.  A good visual spray indicator rate is 1.25kg/100 litre Dilute Volume. If a concentrate spray volume is used the x-factor rules must be applied.

Fluorescent Dye

For thorough spray coverage analysis, all sprayer operators or owners of sprayers should consider investing in Croplands SARDI fluorescent dye.

IMG_3166

dye bottle

The dye is tank-mixed with water and sprayed onto the target crop. There are no residue issues as this is food grade quality dye.

A UV-light is needed to assess coverage results.

Available in 1 litre and 5 litre bottles.

Water Sensitive Paper

water and oil paper

Water sensitive paper has the advantage that it is very easy to handle (but watch out for moisture) and store (used and unused) which make it an ideal tool for documentation. It can be assessed straight after the application and like clay, it is excellent to be in cooperated into the work flow of the set-up. 

It provides only a small snapshot of the canopy target and great care needs to be taken to produce a representative standard when placing the papers into the canopy. As a rule of thumb, if three out of ten papers show inadequate coverage the set-up needs improvement.