About the Disc Pasture Meter The disc pasture meter (or DPM) is an aluminium instrument used to determine grass biomass per hectare (kg dry grass/ha). It is an easy alternative to cutting, drying, and weighing grass samples for measuring biomass. The grass biomass data is then typically used for the following.

    • Determining the grazing capacity on a property or a single camp/paddock
    • To make decisions regarding prescribe burning

How does it work? The DPM consists of a disc attached to a tube which slides over a rod fitted with measurements in centimetre (see illustration). The disc and tube unit are dropped onto the grass sward with the rod placed vertically to the ground. The height (in centimetres) at which the disc settles is then recorded where the rod meets with the upper fringe of the tube. At least fifty such recordings are made at one sample site after which the average (in cm) is calculated. Recordings are usually done on a straight transect at one step intervals.

How is biomass determined? Grass biomass, or standing crop, in kilogram dry grass per hectare (kg/ha), is then calculated by using an equation. Various equations are developed by pasture scientists through calibrating the DPM for certain grassland and savanna regions. These equations are supplied with the instrument or can be downloaded from our resources page.


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ABOUT THE EZ SPRAY The EZ spray is a convenient 16L battery operated electric backpack sprayer. It is used for spraying herbicides, pesticides, foliar fertilisers, parasite control on livestock, etc. It is fitted with a rechargeable battery (charger included), 2-speed motor and pressure adjustable knob.

Capacity: 16L
Rechargeable battery: 12V / 9Ah
Rotate speed: 3 500 times/minute
Working pressure: 3.5 – 5 bar
Working electricity: 2.2 – 2.8 A
Spray time: 12 hours (after full charge)
Dimensions: 44.5 x 40 x 61 cm
Weight: 16 kg (empty)
Equipped with pump + 12 V battery
Charger Input: AC 100 – 240 V, 50 – 60 HZ
Charger Output: DC 12 V, 1.5 A
Sprayer flux (per minute):
a) 4-hole nozzle 1.5-1.8L; dreamline 2.5L
b) double nozzle 2-2.2L

It comes with various nozzles and an optional boom extension that allows you to spray 1.5 m strips.


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