论文部分内容阅读
作物生长发育需要的磷素营养主要来源于土壤的有效磷素.研究和揭示土壤有效磷的动态变化特性与作物磷素营养的相互关系,具有重要的理论和实践意义.(土娄)土的磷素营养,过去多偏重于磷肥增产效应方面的研究,而把土壤—肥料—植物作为一个统一体研究则感缺乏.我们以武功头道塬红油土作为(土娄)土的代表性土壤,用小麦作指示作物,试图进一步探讨.在小麦生长过程中,(土娄)土有效磷素的动态变化过程,施入肥料磷对土壤有效磷动态变化的影响,以及对小麦磷素营养水平和生长发育的作用.
Phosphorus nutrition needed by crop growth and development mainly comes from available phosphorus in soil, and it has important theoretical and practical significance to study and reveal the relationship between the dynamic changes of soil available phosphorus and crop phosphorus nutrition. In the past, much emphasis was put on phosphorus production, but soil-fertilizer-plant as a unitary study was lacking.We used the red soil as the representative soil , Wheat as an indicator crop, trying to further explore.During the growth of wheat, the dynamic changes of available phosphorus in soil, the impact of fertilizer application of phosphorus on dynamic changes of available phosphorus in soil, And the role of growth and development.