摘要
钙镁是农作物生长所需的主量元素，在喀斯特农业生态环境中钙镁的赋存、迁移、平衡能否满足农作物生长的需要，是一个研究很薄弱的问题。本文应用钙镁迁移转化的垂直剖面变化，阐述其自岩石、土层、农作物的赋存状况及供虎平衡关系，初步总结出碳酸盐岩富钙镁，土层贫钙镁。农作物需钙镁的生态特征，以所掌握的资料，提出该区缺钙镁的认识，并采取相应的补偿对策，改善缺钙镁的生态环境。
Calcium and Magnesium are the main elements of crop growth, but the study,that is,if the occurrence and migration of the two elements in cropland of karst region can reach to such an equillibrium that their content just meet the growth of crops f has long been ignored.In this paper,the authors, accordance with the variation of Ca and Mg in soil profile,come to a conclution that Ca and Mg are aboundant in carbonate rocks but lack in their topped-soil and that a compensation is necessary for the crops,and put forward a step to improve ecological environment.
出处
《贵州地质》
1995年第1期61-68,共8页
Guizhou Geology
