广西饲用青贮玉米品种比较试验

Comparative Trial of Silage Maize Varieties for Feeding in Guangxi

通过对郑单958、桂单0810、桂单162、兆丰588、兆丰788、桂单0811、耀青5号、青饲2号、苏玉10号9个饲用青贮玉米品种春播和夏播的比较试验,并观测其植株出苗率、植物学特征和生物产量。结果表明,耀青5号品种表现为植株高大,且其风干物质含量和生物产量较高。春播时耀青5号的鲜草产量为4 604.52 kg/666.7 m2,比郑单958增产24.89%;夏播时耀青5号的鲜草产量为4 987.55kg/666.7 m2,比郑单958增产47.08%,可在广西大力推广应用。

In this study,a comparative trial was carried out using the spring sowing and summer sowing varieties of nine silage maize for feeding,including Zhengdan958,Guidan 0810,Guidan 162,Zhaofeng 588,Zhaofeng 788,Guidan 0811,Yaoqing No.5,Qingsi No.2 and Suyu No.10,as experimental materials to compare their plant seedling rate,botanical characteristics and biological yield.The results showed that Yaoqing No.5 exhibited higher plant height and performed better in content of air-dried matter and biological yield.The fresh grass yield of spring sowing and summer sowing varieties of Yaoqing No.5 was 4 604.52 kg/666.7 m^2 and 4 987.55 kg/666.7 m^2,respectively,which was increased by 24.89%and 47.08%than that of Zhengdan 958,respectively.It was indicated that Yaoqing No.5 could be widely popularized in Guangxi.