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在作物栽培中,常发生缺素病,如何做出正确的诊断并及时医治,是一个很重要的问题。作物缺素病有很多诊断方法。例如植物外部形态诊断法、田间试验诊断法,土壤营养诊断法、植物营养化学诊断法、生物化学诊断法等。这些方法各有优劣,最常用的是第一种方法。当人们怀疑作物缺素时,一般是查《植物缺素检索表》对照叶片的症状进行诊断。但这也不是一个最好的方法,因为作物缺素问题很复杂,受多种因子的影响,仅靠查表有时还不能做出正确的判断,甚至误诊。目前国外又推行一种DRIS
In crop cultivation, often lack of disease, how to make the right diagnosis and timely treatment, is a very important issue. There are many diagnostic methods for crop deficiency. For example, plant morphology diagnosis, field test diagnosis, soil nutrition diagnosis, plant nutrition chemical diagnosis, biochemical diagnosis. The advantages and disadvantages of each of these methods, the most commonly used is the first method. When people suspect that crop deficiency, the general is to check the “lack of phytoremediation table” control leaf symptoms diagnosis. However, this is not the best method. Because the problem of crop deficiency is complicated and influenced by many factors, it is sometimes impossible to make correct judgments or even misdiagnosis only by looking up the table. At present, a DRIS is introduced abroad