高丹草新品种在河北平原农区的引进筛选

在河北平原农区，通过对国内外11个高丹草新品种的产草量、粗蛋白产量、物候期、分蘖力、再生性、株高等性状的研究分析，结果表明：以青饲、青贮饲喂牛为目的，表现最好的品种为健宝，不仅产草量高、粗蛋白产量、分蘖能力、再生性、长势均较好。其次为晋草1号、瑞奥3号。高丹草在河北平原农区春播、夏播均可，春播可刈割三次，夏播可刈割二次。

Study on the Introducing and Screening of Sorghum sudanense New Varieties into Hebei Plain Farming Area

A study of 11 new Sorghum sudanense varieties from China and abroad countries to analyzing the traits of grass yield, gross protein yield, growth periods, tillering ability, reproduction, and plant height was conducted in the Hebei Plain Farming Area. The result showed that: feeding cattle as green forage or as stored green forage, the variety "jianbao" appeared best in the traits of high yield and good gross protain yield, tillering ability, reproduction, growth as well; the varieties "jincao 1", and "ruiao 3" were next to it. Sorghum sudanense can seed in spring or summer in the Hebei Plain Farming Area. Spring-seeding can harvest three times and summer-seeding can harvest two times.