贵州野生牧草“金荞麦”平衡施肥试验研究

Balanced Fertilization for Polygonum cymosum Tvev-a Wild Forage Grass in Guizhou Province

中国南方分布较广的野生金荞麦,作为中草药使用有悠久历史和较多的研究,但作为牧草资源人工栽培和研究报道极少。在调查贵州南部农民将其用于饲用和护坡的基础上,在贵州中部开展了引种栽培和肥料田间试验,研究金荞麦在栽培条件下,高产和高效需求的肥料配比,养分吸收,饲草的品质分析等。田间试验和其生长特点证明,金荞麦易繁殖移栽,抗劣性强,牧草品质较好,产量高,作为可供选择的栽培牧草品种,在南方适宜地区有较大的推广价值。

Polygonum cymosum Tvev is a kind of wild grass that widely distributed in the Southern China,and has been used as herb medicine for a long history, but a few information as a forage resource in farmland has been reported. Based on the survey of Polygonum cymosum Tvev as forage and one of the erosion control grasses in the Southem Guizhou, an investigation was conducted on fertilization and nutrient requirements for the grass production and quality. The results showed that Polygonum cymosum Tvev was easily grown and showed the characteristics of strong resistance to draught, cold, insects and diseases, and high adaptability to poor soil fertility, thus it was valuable to apply in the Southern China.