干旱区7个禾本科牧草品种生产性能与饲用价值评价

Evaluation on the production performance and feed value of seven grasses in arid areas

摘要:

【目的】探究干旱区过渡地带 7 个禾本科牧草种植生产价值，为本地区种植禾本科牧草提供品种选择支撑。【方法】本研究选取粮饲兼用玉米科桦 669、绿博 6 号、甜高粱、苏丹草、高丹草、巨菌草和金牧粮草 7 种饲用作物为研究对象，同一水肥条件下，对比分析其农艺性状、干草产量、营养成分、相对饲用价值和种植经济效益，并结合各指标进行灰色关联度分析。【结果】科桦 669、绿博 6 号干草产量分别为 25 225. 07 kg/hm² 、23 692. 55 kg/hm² ；相对饲用价值分别为 170. 88、147. 97；经济效益分别为 16 150. 26 元、14 203. 38 元。灰色关联度分析排序为科桦 669＞绿博 6 号＞巨菌草＞金牧粮草＞高丹草＞ 甜高粱＞苏丹草。【结论】表明玉米品种科桦 669、绿博 6 号更适宜在干旱半干旱地区过渡地带水地种植。

Abstract:

【Objective】 The planting value of seven grass grasses in the arid areas was investigated to provide theoretical support for the variety selection of grasses planted in this area.【Method】 Seven forage crops including Kehua 669. Lvbo 6，Sweet Sorghum，Sudan grass，Sorghum sudanense，Pennisetum sinese and Jinmu forage were selected as the research objects. Their agronomic traits，hay yield，nutrient content，relative feed value and planting economic benefits were compared and analyzed under the same water and fertilizer conditions，and the grey correlation degree analysis was carried out in combination with various indicators.【Result】 The results showed that the hay yields of Kehua 669 and Lvbo 6 hay were 25 225. 07 kg/hm² and 23 692. 55 kg/hm² ，respectively. The relative feeding value was 170. 88 and 147. 97，and the economic benefits were 16 150. 26 yuan and 14 203. 38 yuan，respectively. The order of grey correlation was Kehua 669＞ Lvbo 6＞ Pennisetum sinese ＞ Jinmu Forage ＞ Sorghum sudanense ＞ Sweet Sorghum ＞ Sudan Grass.【Conclusion】 Comprehensive analysis shows that maize varieties of Kehua 669 and Lvbo 6 are more suitable for planting in water land in the transition zone of arid and semi-arid areas.