Shoot growth, plant tissue elemental composition, and soil salinity following irrigation of alfalfa and tall fescue with high-sulfate waters

Groundwater contaminated with sulfate (SO4(2-)) at concentrations higher than allowable for drinking water might still be usable for irrigation. Objectives were to determine the growth response and mineral uptake of two forage crops irrigated with waters containing SO4(2-) at concentrations ranging...

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Bibliographic Details
Published in:Journal of plant nutrition 1997-01, Vol.20 (9), p.1137-1153
Main Authors: MacAdam, J.W, Drost, D.T, Dudley, L.M, Soltani, N
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
AGUA DE RIEGO
AZUFRE
Biological and medical sciences
BORE
BORO
BORON
CINC
CONTENIDO DE MATERIA SECA
CONTENIDO MINERAL
CRECIMIENTO
CROISSANCE
DRY MATTER ACCUMULATION
DRY MATTER CONTENT
EAU D'IRRIGATION
FERTILIDAD DEL SUELO
FERTILITE DU SOL
FESTUCA ARUNDINACEA
Fundamental and applied biological sciences. Psychology
GROWTH
IRRIGATION
IRRIGATION WATER
MAGNESIO
MAGNESIUM
MEDICAGO SATIVA
MINERAL CONTENT
MOLIBDENO
MOLYBDENE
MOLYBDENUM
NUTRIENT CONTENT
NUTRITIVE VALUE
POTASIO
POTASSIUM
RIEGO
SALINIDAD DEL SUELO
SALINITE DU SOL
SODIO
SODIUM
Soil and water pollution
SOIL FERTILITY
SOIL SALINITY
Soil science
SOIL SOLUTION
SOLUCIONES DEL SUELO
SOLUTION DU SOL
SOUFRE
STEMS
SULFATE
SULFATOS
SULPHATES
SULPHUR
TALLO
TENEUR EN ELEMENTS MINERAUX
TENEUR EN MATIERE SECHE
TIGE
VALEUR NUTRITIVE
VALOR NUTRITIVO
ZINC
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Summary:Groundwater contaminated with sulfate (SO4(2-)) at concentrations higher than allowable for drinking water might still be usable for irrigation. Objectives were to determine the growth response and mineral uptake of two forage crops irrigated with waters containing SO4(2-) at concentrations ranging from 175 to 1743 mg/L, and with electrical conductivities (EC) ranging from 1.2 to 3.6 dS/m. Plants were grown for 12 weeks in 8-L pots containing a calcareous sandy loam and were harvested at 4, 8, or 12 weeks for plant growth measurements and tissue analysis. Digested leaves, stems, and reproductive tissues were analyzed by inductively coupled plasma (ICP) spectroscopy at each harvest, as were saturated soil paste extracts. Shoot growth of tall fescue (Festuca arundinacea Schreb.) was not affected by irrigation water treatment, whereas shoot growth of alfalfa (Medicago sativa L.) was increased by a moderate level of soil solution SO4(2-). Sulfur (S), boron (B), magnesium (Mg), sodium (Na), and zinc (Zn) concentrations in shoot tissues of both species showed a tendency to increase with increasing SO4(2-) content of irrigation water. Shoot tissue concentration of molybdenum (Mo) increased with maturation in both species, while the concentrations of B, potassium (K), manganese (Mn), Na, and Zn decreased. Soil saturated paste extract concentrations of Mg and Na increased with irrigation water Mg and Na concentrations, while Ca and S concentrations in the soil solution became saturated at the higher irrigation water concentrations of these elements
ISSN:0190-4167
1532-4087
DOI:10.1080/01904169709365323