ISSN:
1573-5036
Schlagwort(e):
Chloride and sulphate salinity
;
Soybean yield
;
Zn effect
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
Notizen:
Abstract A study was conducted in a screen house in pots on a sandy loam soil deficient in Zn. Salinity was induced by adding 44, 88 and 132 me/l of chloride and sulphate salts in the saturation extract. To these treatments, 0, 5 and 10 ppm Zn were added as ZnSO4·7H2O or Zn-EDTA. The results indicated that the yield of soybean shoot was lowest at the highest salinity level and highest at the lowest level. Shoot yield improved markedly with Zn application. Both sources of Zn were equally effective in augmenting crop yields. Yields were low in Cl-salinity when compared with equivalent levels of SO4-salinity. Application of ZnSO4·7H2O produced higher yields in SO4-dominant salinity. Zinc content increased and Zn uptake decreased with increase in Cl-salinity regardless of Zn sources. In SO4-salinity, ZnSO4·7H2O did not influence the Zn content, but uptake was suppressed with increase in SO4-salinity. Increasing rates of SO4-salinity enhanced Zn content in the presence of Zn-EDTA.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02197164
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