[Effect of the interaction between biological properties of herbage species and factors of cultivation techniques on the formation of swards in the meadows of the lower Nemunas at various levels of flooding]
2000
Gipiskis, V. (Lithuanian Inst. of Agriculture, Dotnuva (Lithuania))
Competition between herbage species was investigated in the sward composed of 14 grass species on a heavily fertilised background, on high (no floods), medium (duration of the flood 28 days) and low (up to 48 days) lying meadows cut 2, 3, 4 and 5 times. The following was determined : tolerance of grasses to floods, longevity, effect of the first cut timing and duration of aftermath growing on the variation of botanical composition of the sward, changes in the specific composition of grass species during the vegetative growth season, agrobiological peculiarities of Bromus inermis Leyss, Dactylis glomerata L., Poa pratensis L., Agrostis stolonifera L., Phalaroidesarun dinaceaL., Deschampsia cespitosa L., enabling them either to get established or to be suppressed. The essence of phytosocial relations is the struggle amoung grass species for existence, adjustment to enviromental conditions. It is possible to achieve a desirable botanical composition of the sward by mathing cultivation techniques to biological properties of grass species
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