摘要
研究不同耐低磷大豆品种在酸性红壤和石灰性土壤上的耐性变化。结果表明，大豆品种的耐低磷能力与土壤类型有一定关系，干物质积累量和磷积累量的大豆品种×土壤类型间交互作用极显著。在酸性低磷红壤上，大豆品种湘春９１—１００、涟源泥冬黄豆和浙春２ 号的干物质量和磷积累量都显著高于桂阳傲泉黄豆和湘豆３ 号。在石灰性土壤上，干物质表现为湘春９１—１００、涟源泥冬黄豆＞ 桂阳傲泉黄豆、浙春２ 号＞ 湘豆３ 号，而磷积累量除湘春９１—１００ 显著较高外，其它４ 个品种间无显著差异。
A pot culture experiment was carried out to study the tolerance of 5 soybean cultivars (cv) to low level of P in an acid red soil and a calcareous soil. The experimental results showed that dry matter weight and accumulated phosphorus amount of these cultivars were well correlated with the interaction of cultivar with soil i.e.cv×soil. In the acid red soil the dry matter weight and P content of Xiangchun 91—100, Lianyuan nidong huangdou and Zhechun No.2 were significantly higher than those of Guiyang aoquan huangdou and Xiangdou No.3; In the calcareous soil 3 significantly (p<0.05) different levels of dry matter weight were found. The cultivars were ordered as follows: Xiangchun 91—100, Liangyuan nidong huangdou > Guiyang aoquan huangdou, Zhechun No.2 > Xiangdou No.3. However P contents of the plant showed no significant difference among these cultivars except Xiangchun 91—100. So the data suggested that capacity of soybean cultivars to tolerate a low P level was affected by two types of soil. This can be explained by different root growth of the cultivars in acid red soil and calcareous soil.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
1999年第3期56-60,共5页
Chinese Journal of Oil Crop Sciences
基金
中国农科院油料作物所所级课题
