植物矿质营养素缺乏及主要营养素流失原因分析

植物矿质营养素缺乏的一般原因包括土壤营养元素的缺乏、土壤中的元素不可吸收、不良的气候条件、土壤施肥不科学以及土壤管理不善等。土壤中氮素的流失与挥发、农田排水与降雨径流密切相关;磷素的损失主要通过磷的渗漏淋失与磷的流失造成;钾素的损失主要表现为钾的固定与钾的淋失。

Analysis on Mineral Nutrient Elements Deficiency and the Cause of Main Nutrient Elements Drain

The general causes of the mineral nutrient elements deficiency in the plants include the nutrient elements deficiency and loss,the bad climate condition,the wrong fertilizer application,and the lagging management methods,et al.The drain and evaporation of the nitrogen in the soil,the water draining of the farmland are closely related to the runoff of the rainfall.The loss of phosphorus mainly depended on its leakage and drain.The loss of the potassium mainly depended on its fixation and drain.