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Production of the Forage Halophyte Atriplex amnicola in Metal-Contaminated Soils

مؤلف البحث
Mamdouh A. Eissa, E. M. Ahmed and S. M. Reichman
ملخص البحث

Clean-up of contaminated soils is a costly and slow process that requires long periods of time to be effective. Therefore direct use of contaminated sites with
appropriate management is often likely to be a more efficient use of such land. Consequently, the production of safe animal forages from contaminated soils was the aim of this research. Field studies were conducted to evaluate the growth and elemental composition of river saltbush (Atriplex amnicola) grown on a metal-contaminated soil. The soil was amended with compost at rates of 0,15 and 30 t/ha to assess its role on plant growth and metal uptake. Compost application significantly (P<0.05) increased biomass yield, crude protein (CP) and ash content of river saltbush; in contrast, it decreased the Zn and Pb concentrations in shoot tissues. When 30 t/ha of compost was added, the Pb concentrations in the stems and leaves decreased by 32 and 38% respectively. Despite the large total and extractable contest of metals in the studied soil, shoot concentrations of these metals in A. amnicala were always maintained below poteatially toxic levels. The biomass material of A. amnicala had a high nutritive value compared to conventional forage crops and could safely be used as animal forage. This work demonatrates that an Atriplex spp. A.amnicala, has significant potential for use as a safe forage crops in the sustainable on-site management of contaminated soils

مجلة البحث
Soil Use and Management.
المشارك في البحث
الناشر
NULL
تصنيف البحث
1
عدد البحث
Vol. 32 - No.3
موقع البحث
NULL
سنة البحث
2016
صفحات البحث
p:350-356.