Use this calculator to determine whether the fruit weight and/or dry matter of fruit from your existing pollination system (the 'control') is as good as the 'ideal' hand pollinated fruit.

This is an interactive tool for interpreting irrigation water quality information.

This calculator estimates trigger points for irrigation, water holding capacity of your soil type, and the time needed to irrigate your soil for tensiometer-based monitoring of soil water content.

Many soil moisture sensors provide growers with immediately available volumetric estimates of the amount of plant available water in the root zone and, from that estimate, the volume of water needed to return the soil to field capacity.   

This calculator estimates the daily crop evapotranspiration for a chosen day using the maximum and minimum temperatures for that day and the location of your orchard/vineyard.

This calculator provides you with an easy test for evaluating the uniformity of your micro-irrigation system.

This calculator enables you to do a quick check on the annual $ returns from operating an irrigation system. It was developed by the Department of Primary Production in New South Wales and is used here with their permission [pending].

The methods described in this calculator give spray application volume requirements as outputs required per 100 metres of sprayed row - hence the term distance based spraying.

Notes:

The methods described in this calculator give spray application volume requirements as outputs required per 100 metres of sprayed row - hence the term distance based spraying.

Knowing your spraying speed is important when you come to calibrate your sprayer.

This calculator generates the tank and per 100 L rates for converting dilute (high volume) spray settings into concentrate (low volume) spray settings.

Pick two different canopies on your vineyard and enter the requested information on each canopy in this calculator.

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Canopy-based spraying involves adjusting application volumes on the basis of canopy size and density. Tree-row-volume (TRV) calibration is one method of achieving this outcome.

This calculator estimates the likely gross margins for given scenarios of cultivar, existing incidence of canker, and canker management strategies.

This calculator generates the tank and per 100 L rates for converting dilute (high volume) spray settings into concentrate (low volume) spray settings.

The costs of application need to be factored into any calculations on the cost benefit of applying any spray.