摘要
采用营养液培养法研究通气状况与氮素形态对水、旱稻生长和养分吸收的影响 .结果表明 ,通气与不通气相比 ,通气明显的增加了植物地上部和地下部的生物量 ;同时验证了水稻喜 NH+4 和旱稻喜 NO- 3的吸收特性 .叶面积测定与地上部生物量的趋势完全一致 ,表明这种生物量的增加与光合作用增强、光合面积增大有关 .植物地上部全 N、P、K含量测定显示 ,通气状况与氮素形态对水、旱稻生物量的影响与 N、P。
In culture solution experiment,we have studied that ventilation and N-form affect biomass of lowland and upland rice.The results showed the biomass of plants increases when enough ventilation is given.At the same time,the characteristics were verified that the lowland rice prefers NH + 4 to NO - 3 in contrast with the upland rice.Leaf area is identical to the biomass of the plants.With the biomass of the plant increasing,photosynthesis and photosynthetic area increased.N?P?K content of the shoot implied that the effect of ventilation and N-form on the biomass of the lowland and upland rice is not directly correlative with the uptaking of N?P?K.
出处
《哈尔滨师范大学自然科学学报》
CAS
2002年第4期97-102,共6页
Natural Science Journal of Harbin Normal University
基金
国家自然科学基金资助项目 (39970 4 34和 30 0 70 4 4 9
