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水稻受亚铁中毒危害是我国南方各省湿田土壤中常见的一种稻障碍。经过多次研究结果表明,当土壤中缺钾和偏施化学氮肥时,水稻更易受亚铁的中毒危害。有关亚铁中毒症状及其与钾、氮肥的关系,已在其它报告中作了讨论,其病症往往受环境因素的干扰而发生变化。但是单凭病症形态诊断则易误诊,如能配以化学速测手段,则对病症的确诊很有助益。经多年研究的生产应用,证明对水稻亚铁中毒症具有较好诊断性的化学速测法——0.1％邻菲罗林直接浸提法总结如下,以供参考。 一、研究结果简结
Damage to rice by ferrous poisoning is a common rice obstacle in wetland soils of all provinces in southern China. After several research results show that when the soil potassium and partial chemical nitrogen fertilizer, rice is more susceptible to the poisoning of ferrous. The symptoms of ferrous poisoning and its relationship to potassium and nitrogen fertilizers have been discussed in other reports, and the symptoms are often altered by environmental factors. However, diagnosis of the disease alone is easy to misdiagnosis, if accompanied by rapid means of chemical tests, the diagnosis of the disease is helpful. After many years of research and application of production, to prove that rice ferrous poisoning has good diagnostic speed of chemical rapid test - 0.1% o-phenanthroline direct extraction method is summarized below for reference. First, the study concludes