Interaction of provenance (seed source), fertilizers and salinities in Eucalyptus tereticornis and E. camaldulensis grown in north-west India

Eight Australian provenances of Eucalyptus camaldulensis and E. tereticornis, alongwith one local material were tested on saline soils (0.45, 2.16 and 3.97 dS m⁻¹) in field conditions at experimental farm of Krishi Vigyan Kendra, Jind (29.03′ and 29.51′ and 75.53′ and 76.47′) located in north-west India. At two years of age, plant height ranged from 294 to 464 cm, the collar diameter from 51 to 93 mm and dry weight of plant from 3.14 to 4.52 kg. The provenances showed varied growth with fertilizer treatments in different salinities. The response of organic matter was better as compared to low doses of inorganic fertilizers. The response of fertilizer increased up to a level of medium dose. The split doses of N and P for two consecutive years contributed to better growth as compared to initial basal application. The maximum growth was attained by E. camaldulensis of Emu Creek, Petford and minimum in E. tereticornis (Indian local source). The interaction of provenances, salinity and fertilizer was significant (P<0.05).