Water salinity limits for various plants and animals. |
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| 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. |