Water salinity limits for various plants and animals.
EC (uS/cm) EC (mS/cm) mg/L (or ppm) This is the upper limit for:

1000

1

670

red clover, white clover,  strawberry, avocado, citrus, apples, stonefruit, beanscelery, gardenias, jasmine, camelia, magnolia,

2000

2

1340

Hot water systems, oats, wheat, rye, lucerne,mulberry, grape, cucumber, capsicum, melons, tomato, hibiscus, geraniums, lantana, Dodonea species, Callistemon viminalis, Eucalyptus aggregata, E. camphora, E. cinerea, E. cladocalyx, E. cornuta, E. crenulata, E. dumosa, Acacia melanoxylon. Avoid irrigating on hot days, water occasionally and deeply

3000

3

2010

Human consumption

5000

5

3350

Poultry

5500

5.5

3685

Paspalum dilutum, birdsfoot trefoil, Phalaris, sudan grass, perennial ryegrass, Pangola grass, tall fescue, Rhodes grass, Kikuyu, couch grass, Olives, figs, pomegranate, spinach, asparagus, kale, crysanthemun, carnation, oleander, rosemary, pepper trees, pyramid trees, false acacia, NZ Christmas bush, Eucalyptus camaldulensis, buffalo grass, Portulacas, pigfaces, boobiallas (Myoporum species), swamp yate, York gum, couch grass, bamboo, Eucalyptus largiflorens, E. platypus, E. robusta, E.occidentalis, E. sargentii, Acacia longifolia, A. saligna, Melaleuca ericifolia, M. lanceolata, Allocasuarina verticillata. Only irrigate where drainage is good, don't wet leaves of plants.

6000

6

4020

Dairy cattle producing milk, showers and baths

7000

7

4690

Pigs

10000

10

6700

Horses

11000

11

7370

Lambs, weaners, breeder ewes, dry dairy cattle

16000

16

10720

Septic tanks, beef cattle

20000

20

13400

Saltwater couch (Sporobolus virginicus), Puccinellia, sand couch, date palms, salt river gum, salt sheoaks, saltbushes (Atriplex and Maireana species), tamarisks, samphires (Halosarcia species), Acacia stenophylla, A. cyclops, Eucalyptus kondininensis, E. robusta, Casuarina obesa, C. cunninghamiana, C. glauca, Melaleuca halmaturorum. Don't wet the leaves, best on sandy soil with excellent drainage.

22000

22

14740

Adult sheep. Do not use to irrigate.

 

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