刈割时期对昭苏马场人工割草地产量和品质的影响  

Effects of Cutting Period on Herbage Yield and Quality of Cut-grassland at Zhaosu Horse Ranch

作　　者：阿依古丽.达嘎尔别克 阿布都卡哈尔.阿布都卡迪尔 哈丽代.热合木江 艾比布拉.伊马木 

机构地区：[1]新疆农业大学草业与环境科学学院新疆草地资源与生态重点实验室,新疆乌鲁木齐830052 [2]新疆伊犁哈萨克自治州草原工作站,新疆伊宁835000

出　　处：《畜牧与饲料科学》2013年第11期37-39,共3页Animal Husbandry and Feed Science

基　　金：马专用干草的刈割和调制技术研究与示范(2012BAD45B03-02)

摘　　要：分别于2013年7月上中旬和8月上中旬对新疆维吾尔自治区伊犁哈萨克自治州昭苏马场人工割草地进行刈割,并进行了产草量测定和牧草品质的比较分析。结果表明,刈割时期对建植第3年和第7年割草地的鲜草和干草产量无明显影响;8月上中旬刈割牧草的粗蛋白(CP)含量与7月上中旬刈割牧草相比显著降低(P<0.05);刈割牧草中,豆科牧草的比例无明显变化,但8月上中旬刈割牧草的叶茎比显著降低(P<0.01);在8月上中旬刈割的牧草中,中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)含量有不同程度的增加(P<0.05)。由试验可知,昭苏马场的合理割草时间以7月上中旬为宜,此时牧草的产量和质量较佳。The cut-grassland in Zhaosu Horse Ranch of Yili Kazakh Autonomous Prefecture of Xinjiang were harvested in July and August of 2013. The grass yield and forage quality were analyzed. The results showed that the cutting period had no obvious effect on the yields of fresh grass and hay in cut-grasslands that had been established for third years and seventh years. The crude protein content in the forage that was cut in August was significantly decreased than that in July （P〈0.05）. The proportion of leguminous plants in the cutting herbage had no significant changes with the cutting period, but leaf-stem ratio was significantly decreased in August （P〈0.01）. The content of neutral detergent fiber and acid detergent fiber in the forage cut in August was increased in different degrees （P〈0.05）. Therefore, the reasonable cutting period for Zhaosu Horse Ranch＇s cut-grassland was in early and middle stages of July, the forage yield and quality were better.

关 键 词：割草地 刈割时期 牧草产量 牧草品质 

分 类 号：S812.4[农业科学—草业科学]