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退耕坡地高羊茅种子生产及效益评价 被引量:1

Seed Production of Qiancao 1(Festuca arundinacea) Interplanted in Young Forest of Sloping Land and Its Economical Benefit Evaluation
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摘要 2002-2005年在独山县退耕幼林地套种黔草1号高羊茅,进行种子生产及效益评价研究,对种子产量和牧草产量进行了测定和分析:3年种子产量分别为140.55kg/hm^2、679.80kg/hm^2和691.50kg/hm^2,秸秆产量为1469kg/hm^2、2250kg/hm^2和2238kg/hm^2,青草产量为57810kg/hm^2、52220kg/hm^2和51730kg/hm^2;套种高羊茅后,在进行牧草管理的同时对林木进行管理,既使牧草和种子双丰收,又促进了苗木的生长,收益明显提高,最高达到19098.00元/hm^2,是套种前4750元/hm^2的4倍。 Qiancao 1 (Festuca arundinacea) was interplanted in young forest of sloping land in Dushan county from 2002 to 2005, investigate its seed yield and economic benefit. The results show that the seed, straw and green grass yields in 2003, 2004 and 2005 were 140.55 kg/ha, 1469 kg/ha and 57810 kg/ha; 679.80 kg/ha, 2250 kg/ha and 52220 kg/ha; and 691.50 kg/ha, 2238 kg/ha and 51730 kg/ha respectively. The young forest and forage grass is managed at the same time, which not only gets higher yields of forage grass and seed. but also improves growth of young trees. The maximum economic benefit is up to 19098.00 Yuan/ha, which is four times as many as that before interplanting.
出处 《贵州农业科学》 CAS 2006年第4期95-97,共3页 Guizhou Agricultural Sciences
基金 贵州省"十五"科技攻关项目[黔科合农社字(2002)113] 贵州省农业厅资助项目[黔农科字(2002)01]和[黔省专合字2005(253)]
关键词 退耕还草 高羊茅 种子生产 效益评价 return cultivated land to grassland tall fescue seed production benefit evaluation
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