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2009, vol. 25, iss. 5-6-2, pp. 1225-1231
Effects of growth stage on the mineral concentrations in alfalfa (Medicago sativa L.) leaf, stem and the whole plant
Institute for Forage Crops, Kruševac, Serbia
Projekat Ministarstva nauke Republike Srbije, br. 20048

The proper balance of protein, energy, vitamins and all nutritionally-important minerals is needed to make a nutrition program successful. Nutrient balance is the key to any effective nutrition program. Mineral concentrations in forages vary much more than do protein and energy concentration. In general, alfalfa leaves were higher in nitrogen, phosphorus, calcium, magnesium, copper, zinc, iron and manganese than alfalfa stem and whole plant. In contrast, stem of alfalfa tended to be higher in potassium than leaf of alfalfa. Forage mineral concentration was affected by maturity. Generally, there was a rapid uptake of mineral during early growth and gradual dilution as the plant matured. Nitrogen, potassium, magnesium, iron, copper, zinc and manganese are the most common minerals affected by plant maturity. Phosphorus and calcium concentrations increased with growth and development in both anatomical fractions as well as in whole plant. This experiment was conducted to determine the mineral composition of alfalfa (cv K-28) leaf, stem and whole plant during growth and development.
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article language: English
document type: Original Scientific Paper
published in SCIndeks: 24/11/2009

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