苹果园林下套种对两种饲用甜菜产量和品质的影响

为了比较苹果园林套种条件下新甜饲1号和FF10000饲用甜菜的产量和品质，在苹果园林套种条件下对两种饲用甜菜的农艺性状、产量以及营养品质进行测定分析。结果表明，FF10000饲用甜菜单位面积块根和叶片产量分别为144581.85 kg/hm2、37453.35 kg/hm2，比新甜饲1号增加了59.37%和-3.55% (P<0.05)。FF10000饲用甜菜48 h消化率为86.77%，比新甜饲1号增加了10.11%(P<0.05)。FF10000饲用甜菜中位叶长、块根最大周长、可溶性糖、有机质和非纤维性碳水化合物显著高于新甜饲1号 (P<0.05)；粗蛋白、粗脂肪、粗纤维、粗灰分、块根含水率和中位叶宽显著低于新甜饲1号 (P<0.05)。叶丛高度在两种饲用甜菜之间无显著差异（P>0.05)。试验结果证明，FF10000饲用甜菜块根产量高、消化率高、饲用品质好，是适合在果园套种的优良品种。

Effects of interplanting under apple orchard on yield and quality of two forage beets

In order to compare the yield and quality of feeding beets Xintian No.1 and FF10000 under the condition of apple garden interplanting, the agronomic characters, yield and nutritional quality of the two feeding beets were measured and analyzed under the condition of apple garden interplanting.The results showed that the yield of root tuber and stem leaf per unit area of FF10000 fodder beet was 144581.85kg/hm2 and 37453.35kg/hm2, respectively, which was 59.37% and-3.55% higher than that of Xintiansi No.1 (P <0.05). The 48h digestibility of FF10000 fodder beet was 86.77%, which was 10.11% higher than that of Xintian No.1 (P < 0.05). The median leaf length, maximum root circumference, soluble sugar, organic matter and non-fibrous carbohydrate of FF10000 fodder beet were significantly higher than those of Xintian No.1 (P < 0.05). Crude protein, crude fat, crude fiber, crude ash, root moisture content and median leaf width were significantly lower than those of Xintian No.1 (P<0.05). There was no significant difference in leaf cluster height between two forage beets (P>0.05). The experimental results show that FF10000 is an excellent variety suitable for interplanting in orchards because of its high root yield, high digestibility and good feeding quality.