德钦苜蓿生产试验初报

A Primary Report of Deqin Alfalfa Productive Trial

在大田生产条件下,全面测试了德钦苜蓿的产量水平和综合表现。结果表明:在云南省种植德钦苜蓿以夏初播种为宜;在迪庆州,一般6月下旬播种。德钦苜蓿返青期较阿尔冈金要早6～7d左右,枯黄期要晚11～15d左右,总的生育天数长20d左右。经抗性观察表明,德钦苜蓿适应性强,耐贫瘠、较耐涝、抗干热能力强,无明显病虫害。生产管理上只需雨季适当排水。产量测定结果表明,三年各试验点德钦苜蓿鲜草、干草产量均极显著高于阿尔冈金(P<0.01),鲜草产量最高增幅可达66.6%(佛山点),干草产量最高增幅可达83.9%(奔子栏点)。总体来看,德钦苜蓿适应迪庆州德钦等类似自然条件地区性强,有较好的丰产性和适应性,是一种值得在生产上推广种植利用的优良的地方牧草品种。

A productive trial of Deqin Alfalfa was carried out to determine its yield level and synthetic value.The results showed that Deqin alfalfa should be sowed in latter summer in Yunnan.When planted in Diqing Tibetan Autonomous,it should be sowed in the last third part of June.As a whole,the reviving stage of Deqin alfalfa was 6～7 days earlier than that of Algonguin,and the reviving stage was 11～15 days latter,the cultivated day was 20 days longer.The analysis of stress resistance insisted that Deqin alfalfa had a strong adaptability and resistance to nutrient-deficient soil,waterlog,drought-hot.Moreover,it had no obvious insect pest.So,it was only needed to drain off water in proper time as its production management measures.The yield results indicated that the fresh and dry matter yields of Deqin alfalfa were singnificantly higher than those of Algonguin（P0.01） in three years,and the increasing rate were 66.6% and 83.9% respectively.In a word,Deqin alfalfa with a stong adaptability and high yield,was a kind of excellent local forage variety which was worth planting and popularizing in DiqingTibetan Autonomous Prefecture.