作者: Víctor A. González-Hernández , Alfonso Hernández-Garay
DOI:
关键词: Composition (visual arts) 、 Horticulture 、 Perennial plant 、 Organic matter 、 Biology 、 Randomized block design 、 Dry matter 、 Yield (wine) 、 Lolium perenne
摘要: The aim of this study was to determine the effects three cutting frequency perennial ryegrass (Lolium perenne L.) in order obtain highest seasonal and annual herbage production nutritive value. Three frequencies (2, 4 6 weeks) were evaluated, allocated x m plots, a completely randomized block design, with four replicates. Variables studied dry matter (DMP), growth rate, plant height, botanical composition value, which expressed on basis. higher DMP (6,000 kg DM ha-1 year-1) obtained at wk frequencies. About 72 % produced spring summer. Growth rate greatest (35 day-1) lowest (5 ha -1 day ) July January, respectively (P<0.05). In vitro organic digestibility winter, decreased as interval increased Crude protein averaged 20.3 %, showed tendency decrease from 2 Data suggest that digestible crude yields, under same conditions stated study, should be wk.