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The nutritional deficiencies on corn culture contribute significantly to the fall in productivity and, consequently, of the farmer gain. It is important to identify the nutritional deficiencies at the beginning of the plant cycle so that providences can be taken in at time to save the harvest. Thus, this objective of this study was to identify the deficiency symptoms of the nutrients nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, boron, manganese, zinc, molybdenum, and copper in hybrid corn BRS 1010. The experimental design was entirely randomized with thirteen treatments and three repetitions, consisting of a total of thirty nine experimental parcels. Each parcel was represented by a Leonard vase contained two plants. The ‘complete’ treatment was represented by plants that received, through of nutrition solution, everybody the essential nutrients to growth and development. The other treatments were formed by subtraction of every one of the essential nutrients, with the others supplied normally. The deficiency symptoms of each macro and micronutrients were recorded during all periods of the experiment. The diagnosis method by subtraction showed to be very efficient to visually evaluate the symptoms of nutritional deficiency in corn.

Sintomas de deficiência de macro e micronutrientes de plantas de milho híbrido BRS 1010