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首页> 外文会议>International^Symposium of the European^Grassland^Federation >Herbage yield and quality of Persian clover and annual ryegrass mixtures harvested at different growing stages
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Herbage yield and quality of Persian clover and annual ryegrass mixtures harvested at different growing stages

机译：PSPERIAN三叶草的牧草产量和质量和每年黑麦混合物在不同的生长阶段收获

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This research was conducted to determine the effects of mixture rates and harvest periods on hay yield and quality of Persian clover (PC) and annual ryegrass (RG) mixtures. Experiments were conducted in the Black Sea Region during the years 2012 and 2013, using a randomized complete block design. Pure stands of PC and RG and their mixtures (80% PC + 20% RG, 70% PC + 30% RG, 60% PC +40% RG, 50% PC + 50% RG, 40% PC + 60% RG) were investigated. Hay yield, crude protein content, acid detergent fibre (ADF) and neutral detergent fibre (NDF) ratios were determined in different harvest periods (beginning of budding and 25% flowering). Average hay yields were between 4,732 and 8,121 kg ha~(-1) at the beginning of budding, and between 7,261 and 11,042 kg ha~(-1) at 25% flowering stage. At beginning of budding crude protein varied between 13.26 and 17.82%, ADF between 37.03 and 41.46% and NDF between 46.55 and 57.74% at beginning of budding; the values at 25% flowering varied, respectively, between 10.50 and15.22%, between 41.66 and 47.63% and between 50.93 and 61.86%. It was concluded that harvests should be performed between budding and the beginning of flowering and mixture ratios should be selected as either 20RG+80PC or 30RG+70PC.
机译：进行该研究以确定混合物率和收获期对波斯三叶草（PC）和年黑麦草（RG）混合物的效果和质量的影响。在2012年和2013年的黑海地区进行了实验，使用随机完整的块设计。 PC和RG的纯代架及其混合物（80％PC + 20％RG，70％PC + 30％RG，60％PC + 40％RG，50％PC + 50％RG，40％PC + 60％RG）被调查了。在不同的收获期间测定干草产量，粗蛋白质含量，酸洗涤剂纤维（ADF）和中性洗涤剂纤维（NDF）比率（发芽的开始和25％开花）。在萌芽开始时平均干燥产率在4,732和8,121 kg ha〜（-1）之间，在25％开花阶段的7,261和11,042kg ha〜（-1）之间。在发芽粗蛋白的开始时，在发芽开始时，ADF在37.03和41.46％之间的37.03和41.46％之间，NDF为46.55和57.74％; 25％开花的值分别为10.50〜15.22％，在41.66和47.63％之间，50.93和61.86％之间。得出结论，收获应在萌芽之间进行，并且开花的开始和混合比应选择为20rg + 80pc或30rg + 70pc。

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