Quality of above-ground biomass of amaranth (Amaranthus mantegazzianus) after winter intercrop triticale
1999
Gregorova, H. (Slovenska Polnohospodarska Univ., Nitra (Slovak Republic))
Quality of amaranth (Amaranthus mantegazzianus), the Elbrus variety, cultivated after winter intercrop triticale Dagro was investigated. Amaranth was seeded in two row spacings (0.375 and 0.500 m). Amaranth produced 3.79 to 8.54 t/ha of dry matter, higher yields were obtained under row spacing of 375 mm. On average amaranth in 1 kg of dry matter contained 129.93 g crude protein, 221.30 g fibre, 38.40 g fats, 3.66 g NO3-N, 3.48 g P, 20.03 g Ca, 9.21 g Mg, 35.53 g K and 0.37 g Na. High content of K was compensated by high content of bivalent cations of Ca and Mg, and therefore the values of tetanic ratio were low. During ontogenesis the content of crude protein, amino acids and mineral elements was falling, while the fibre content was increasing. The effect of row spacing on the content of main nutrients was not unambiguous.
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