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首页> 美国卫生研究院文献>Journal of Animal Science >425 Forage productivity quality and compatibility of native and tame legume species in mixtures with cool season grasses in western Canada.
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425 Forage productivity quality and compatibility of native and tame legume species in mixtures with cool season grasses in western Canada.

机译：425与加拿大西部凉爽季节草的混合物中的牧草生产力和本地豆科植物的品质及兼容性。

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The effects of AC Yellowhead alfalfa (ALF), sainfoin cultivars; AC Mountainview, Nova, Shoshone, Delaney, AC Veldt cicer milkvetch (VELDT), Great Plains Canadian milkvetch (GRT), AC Lamour purple prairie clover and Antelope white prairie clover in binary mixtures with either Tom Russian wildrye (RWR), AC Success hybrid bromegrass (HBG) or Admiral meadow bromegrass on forage yield, quality and compatibility sampled in summer and fall were determined at Swift Current and Saskatoon in a split-plot arrangement of a randomized complete block design (RCBD). All sainfoin cultivars were seeded at 30 pure live seeds (PLS) m-1, while the other species were seeded at 50 PLS m-1 at Swift Current (John Deere 1590 Double Disc Press) and Saskatoon (“Hege” plot seeder) in May 2015 at a depth of 1.9 cm. Forage dry matter yield (DMY) was estimated using a flail plot harvester (0.6 X 5 m area) at Swift Current and 2 0.25 m2 quadrats within each replicate (n=4) plot randomly clipped (2cm stubble height) at Saskatoon in July and September. Data were analyzed as split-plot RCBD with four replications (n=4) using Mixed Model of SAS. Year was included as a random effect, harvest dates as main-plot and binary mixtures as sub-plot. Forage DMY and harvest dates (yr 2) differed (P < 0.0001) at both sites. ALF-HBG (10,491 kg ha-1) (Saskatoon) and VELDT-HBG (5,657 kg ha-1) (Swift Current) produced the highest yield. Crude protein, fibre content (acid and neutral detergent fibres), in-vitro organic matter digestibility, calcium and phosphorus differed (P < 0.0001) among treatments and between harvest dates. ALF-HBG and VELDT-HBG are suggested to be desirable mixtures (DMY), whereas GRT-RWR and VELDT-RWR mixtures ranked high (quality). These results suggest that although yield and compatibility differed in contrasting agro-climatic zones, specific mixtures are suitable for deferred grazing in summer and fall in the Canadian prairies.
机译：交流黄a苜蓿（ALF），皂苷品种的影响； AC Mountainview，Nova，Shoshone，Delaney，AC Veldt cicer奶白（VELDT），加拿大大平原奶白（GRT），AC Lamour紫色大草原三叶草和羚羊白大草原三叶草与Tom Tommy wildrye（RWR），AC Success杂种的二元混合物在夏季和秋季取样的草皮草（HBG）或海军上将草皮草在Swift Current和Saskatoon上以随机完整块设计（RCBD）的分块布置确定。所有sainfoin品种在30个纯活种子（PLS）m-1上播种，而其他物种在Swift Current（John Deere 1590 Double Disc Press）和Saskatoon（“ H​​ege”地块播种机）分别以50 PLS m-1播种。 2015年5月，深度为1.9厘米。使用连ail积收割机（0.6 X 5 m面积）在7月和19日在萨斯卡通随机修剪（2cm残茬高度）的每重复（n = 4）个地块内使用2个0.25 m2夸脱，估算草料干物质产量（DMY）。九月。使用SAS混合模型，将数据分析为具有四个重复（n = 4）的分割图RCBD。年份是随机影响，收获日期是主图，二元混合物是子图。两个地点的牧草DMY和收获日期（第2年）不同（P <0.0001）。 ALF-HBG（10,491 kg ha-1）（萨斯卡通）和VELDT-HBG（5,657 kg ha-1）（快速电流）产量最高。粗蛋白，纤维含量（酸和中性洗涤剂纤维），体外有机物消化率，钙和磷在处理之间和收获日期之间存在差异（P <0.0001）。建议ALF-HBG和VELDT-HBG是理想的混合物（DMY），而GRT-RWR和VELDT-RWR混合物则排名较高（质量）。这些结果表明，尽管在不同的农业气候区中产量和相容性有所不同，但特定的混合物适合于夏季和加拿大大草原的秋季推迟放牧。

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