Jujube irrigation recommendations

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Irrigation recommendations for Manjimup, WA

The tables below assume drip irrigation and good irrigation uniformity. Check the output of the emitters across the block to see how uniform the irrigation is. If the uniformity is poor, additional water may be required over the irrigation block to ensure the trees which are watered by emitters with a lower output receive sufficient water. If under tree sprinklers are used add an additional 10 % of water. The tables below assume good weed control. If the irrigation water has elevated salinity levels then additional water (called a leaching fraction) is required to flush any buildup of salt from the root zone.

Table 6 Estimated water required (m³/ha) for each month in cubic metres per hectare
Percent of orchard floor covered by leaves	Tree age (years)	Total	Jan	Feb	Mar	Apr	Oct	Nov	Dec
5	1	225	45	40	20	10	20	45	45
10	2	450	90	80	40	20	40	90	90
20	3 to 4	900	190	160	80	30	80	180	180
40	5 to 6	1810	380	330	160	70	170	360	350
80	Mature	3620	760	660	320	140	340	720	700

Table 7 Estimated water required (litres/tree) for each month in litres per tree (for an orchard with 1250 trees/ha)
Percent of orchard floor covered by leaves	Tree age (years)	Total	Jan	Feb	Mar	Apr	Oct	Nov	Dec
5	1	180	36	32	16	8	16	36	36
10	2	360	72	64	32	16	32	72	72
20	3 to 4	720	152	128	64	24	64	144	144
40	5 to 6	1448	304	264	128	56	136	288	280
80	Mature	2896	608	528	256	112	272	576	560

Acknowledgements

This work was carried out by independent agronomist Neil Lantzke through the Perth NRM Healthy Soils Healthy Rivers program and supported by the Rural Industries Research and Development Corporation.

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Jujube irrigation recommendations

Irrigation recommendations for Manjimup, WA

Acknowledgements

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