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植物矿物营养诊断指导施肥技术,在生产上推广使用具有明显的增产效果。但橡胶叶片(含植物样品)养分含量的测定方法,以往都是按常规分析法采用酸消化法测定氮和磷;用干灰化法测钾、钙、镁等,由于每一个分析样品都要分别制备,既费时、又耗药,而且样品采集和分析时间都较集中,批量大,用常规分析难以适应科研和生产上的要求。为改变这种现状,寻求一种低耗高效而可靠的测定方法,近两年来,我们经过反复试验筛选出硫酸——双氧水消化法(即酸消化法)一次性制样联合测定橡胶叶片中氮、磷、
Plant mineral nutrition diagnosis and guidance fertilization technology, promote the use of production has obvious yield-increasing effect. However, the determination of the nutrient content of rubber leaves (including plant samples) used to determine nitrogen and phosphorus by acid digestion according to the conventional analysis method. The determination of potassium, calcium, magnesium and the like by dry ashing method was required for each analytical sample Respectively, preparation, both time-consuming, and consumption of drugs, and sample collection and analysis of time are more concentrated, large quantities, with conventional analysis difficult to adapt to scientific research and production requirements. In order to change this situation and seek a low-cost efficient and reliable determination of the method, in the past two years, we have repeatedly tested and selected sulfuric acid - hydrogen peroxide digestion (ie acid digestion) one-time sample preparation combined determination of rubber leaves nitrogen ,phosphorus,