不同紫花苜蓿品种在黄河滩区的生产性能比较

采用完全随机区组设计,研究了14个紫花苜蓿品种在黄河滩区第1个生长年份的生产性能和营养品质。结果显示:14个紫花苜蓿品种干物质产量,前5名分别是赛特、金皇后、三德利、德宝和傲汗,产量分别为16.14 t/hm2、15.52 t/hm2、15.06 t/hm2、13.99 t/hm2、12.54 t/hm2。不同茬次的紫花苜蓿干物质产量呈现出不断下降的变化趋势,并且不同茬次之间差异显著(P<0.05),其中第1茬产量最高,前3茬的产量占总产量的82.01%。株高前4名的分别是三德利、德宝、金皇后和赛特,均在60cm以上。叶茎比以爱菲尼特最高,为54.69%,其次是多叶王、德宝、金皇后、盛世,前5名叶茎比均在50%以上;粗蛋白含量最高是为多叶王,20.21%,其次是爱菲尼特、盛世、傲汗、德宝;粗蛋白产量以金皇后最高,为2.93 t/hm2,其次是德宝、三德利、赛特、傲汗。

Studies on the Production Performance of Alfalfa in Yellow River Beach Areas of Zhengzhou

To study the production performance and nutritional value of alfalfay,a complete randomized block design was used in this experiment.The results showed that Sitle has the highest dry matter yield up to 16.14 t/hm2 and next comes Golden queen,Sandili,Derby and ACAah,which showed the dry matter yields up to 15.52 t/hm2,15.06 t/hm2,13.99 t/hm2 and 12.54t/hm2,respectively.As cutting times of alfalfa increased,the dry matter yields decreased and significant differences were onserved among five cutting times.The first cutting had the highest yield and the dry matter yield of first three cutting times make up 82.01% of the total yield.Plant height of the top four alfalfa varieties was Sandili,Derby,Golden queen and Sitle,which were more than 60cm.Affinity shows the highest leaf-stem ratio among the fourteen alfalfa varieties,and the following is Multiking,Derby,Golden queen and Millennium.The leaf-stem ratio of the first five varieties was all above 50%.The crude protein content of Multiking was highest.The yield of crude protein of Golden queen was the highest of 2.93 t/hm2 and the following is Derby,Sandili,Sitle and ACAah.