臺灣北部地區盤固草地冬季混植禾豆類牧草增產之分析

Analysis of forage yields of pangolagrass mixed culture with gramineae-legume forage in northern region of Taiwan in winter season

梁世祥(Shih-Hsiang Liang) ； 朱明宏(Ming-Hung Chu) ； 蕭振文(Jen-Wen Shiau)

《畜產研究》 49卷4期 (2016/12) Pp. 285-289

摘要

本研究以北部地區盤固草（Digitaria decumbens）A254多年生草地，於2013年冬季混植燕麥（Avena sativa cv. Saia）、苜蓿（Medicago sativa）和埃及三葉草（Trifolium alexandrinum），2014年調查在不同混植牧草種類處理組的產量表現。處理組合包括多年生盤固草地混植燕麥和埃及三葉草、盤固草混植燕麥和苜蓿、盤固草混植燕麥、盤固草混植埃及三葉草、盤固草混植苜蓿及沒有混植任何禾豆類牧草的盤固草地為對照組。播種後每隔2個月調查記錄產量，探討北部地區多年生盤固草地冬季混植禾豆類牧草的可行性。研究結果顯示，多年生盤固草地同時混植燕麥和埃及三葉草與混植燕麥之乾草產量較高，同時混植燕麥和苜蓿與混植埃及三葉草之乾草產量次高，混植苜蓿之乾草產量更次，對照組乾草產量最少。冬季混植耕作不會影響後續盤固草地應有的產量，若搭配盤固草地部分更新方式之改善，可確保混植禾豆類牧草的生長與產量。

關鍵字

禾豆混植 ； 盤固草 ； 燕麥 ； 埃及三葉草 ； 苜蓿

並列摘要

The objective of this study was to assess forage yield of perennial pangolagrass (Digitaria decumbens Stent.) pasture mixed planting with gramineae-legume in northern region of Taiwan in the winter season. Different kinds of graminese-legume treatment were pangolagrass mixed with oat (Avena sativa) and clover (Trifolium alexandrinum), with oat and alfalfa (Medicago sativa), with oat, with clover, and with alfalfa, respectively. The perennial pangola grass was used as the control treatment. The forage yield was surveyed and recorded every two months during experimental period from Nov, 2013 to Jun, 2014. The results showed those the forage yield of pangola-oat-alfalfa or pangola-oat mixed culture was higher than that of single legume mixed or control at 2nd harvested time during experimental period. The operation of forage mixed planting in winter season will not affect the next ordinary ratoon production of pangola grass pasture. Therefore, the gramineae-legume mixed planting with shallow rotation could be considered as a potential method to ensure forage growth and yield for the management of pangola pasture.

並列關鍵字

Grass-legume mixture ； Pangola grass ； Oat ； Egyptian clover ； Alfalfa