摘要
[目的]筛选适合广东韶关地区林地种植的牧草。[方法]以山毛豆(Tephrosia candida)、木豆(Cajanus cajan)、甜象草(Pennisetum purpureum)、大叶菊苣(Cichorium intybus)、糖蜜草(Melinis minutiflora P.Beauv.)和晚熟狼尾草(Pennisetum alopecuroides)为试验材料,通过测株高、生物量、粗蛋白、粗脂肪、粗纤维、粗灰分等指标,评价6种牧草营养指标的差异性。[结果]播种后90 d晚熟狼尾草株高达到250 cm,甜象草为180 cm,木豆和山毛豆分别为150和120 cm;晚熟狼尾草和甜象草鲜草产量分别达到172470和176415 kg/hm^(2);山毛豆蛋白含量最高,达17.0%,木豆为15.3%;木豆的粗脂肪含量最高,达4.1%,其次为大叶菊苣(3.5%)。[结论]山毛豆和糖蜜草更适合林下种植,而甜象草和晚熟狼尾草虽然产量大,但株高较高可能会对其他林地经济作物造成影响,更适合在成熟林下种植。
[Objective]In order to select forages suitable for planting in Shaoguan woodland in Guangdong.[Method]Tephrosia candida DC and Cajanus cajan(Linn.)Millsp,Pennisetum purpureum,Cichorium intybus,Melinis minutiflora P.Beauv and Pennisetum alopecuroides(L.)Spreng,the six kinds of forage were used as experimental materials,and the differences in nutritional indicators of the six kinds of forages were evaluated by ANOVA by measuring plant height,biomass,crude protein,crude fat,crude fiber,crude ash and other indicators.[Result]The results showed that after 90 days of sowing,Pennisetum alopecuroides(L.)Spreng reaches a height of 250 cm,Pennisetum purpureum was 180 cm,Cajanus cajan(Linn.)Millsp and Tephrosia candida DC were 150 cm and 120 cm,respectively.Pennisetum alopecuroides(L.)Spreng and Pennisetum purpureum had a fresh weight of 11498 kg and 11761 kg respectively.The highest protein content on nutritional indicators was Tephrosia candida DC(17.0%),Cajanus cajan(Linn.)Millsp was 15.3 percent.Cajanus cajan(Linn.)Millsp had the highest crude fat content at 4.1%,followed by Cichorium intybus(3.53%).[Conclusion]The combined results showed that Tephrosia candida DC and Melinis minutiflora P.Beauv were more suitable for understory cultivation,while Pennisetum purpureum and Pennisetum alopecuroides(L.)Spreng although had a large yield,its higher plant height may affect other forest land cash crops,and it was more suitable for cultivation under mature forests.
作者
张晖
邓琳
李珊珊
崔育
曾宪煌
张斌
陈平
李永泉
周胜
ZHANG Hui;DENG Lin;LI Shan-shan(Zhongkai University of Agriculture and Engineering,Guangzhou,Guangdong 510225)
出处
《安徽农业科学》
CAS
2023年第19期104-107,共4页
Journal of Anhui Agricultural Sciences
基金
广东省普通高校优稀特色经济林果工程技术研究中心(2022GCZX002)
广东省土地复垦植被恢复工程技术研究中心
林地牧草种植适应性研究(2022440111000724)。
关键词
牧草
种植
林下
韶关
Forage
Plantation
Under-forest
Shaoguan
