巨菌草在冀中南地区的引种试验

Introduction Experiment of Pennisetum sp. in Central and Southern Regions of Hebei

[目的]缓解北方地区粮草争地矛盾。[方法]2014～2015年在冀中南地区进行巨菌草引种试验,探索巨菌草在我国北方地区的适宜种植管理模式。[结果]当巨菌草株高在1.2 m左右时,巨菌草叶风干样中粗蛋白含量达17.40%,茎风干样中粗蛋白含量为16.65%;当巨菌草株高在2.0 m左右时,巨菌草叶粗蛋白含量为16.18%,茎粗蛋白含量为12.17%。巨菌草在冀中南地区的产量为150～255 t/hm^2。当巨菌草的留茬高度为5～10 cm时,最有利于巨菌草的再生。[结论]该研究可为巨菌草在北方地区的推广种植奠定基础。

[ Objective] To alleviate grain-grass land contradiction. [ Method ] The introduction experiment of Pennisetum sp. was conducted in central and southern regions of Hebei during 2014 -2015. The suitable planting and management models of Pennisetum sp. in northern regions of China were explored. [ Result] When the plant height of Pennisetum sp. was about 1. 2 m, the content of crude protein in dried leaves of Pennisetum sp. was 17.40% and the content of crude protein in dried stem was 16.65%. When the plant height of Pennisetum sp. was about 2.0 m, the content of crude protein in the leaves of Pennisetum sp. was 16. 18% and the content of crude protein in the stem was 12.17%. The yield of Pennisetum sp. in central and southern regions of Hebei was 150 -255 t/hm^2. When the stubble height of Pennisetum sp. was 5 - 10 cm, it was most favorable for the regeneration of Pennisetum sp.. [ Conclusion ] The research can lay the foundation for the popularization and planting of Pennisetum sp. in northern regions of China.