Macro and micronutrient accumulation in watermelon

The expansion of crop productivity such as watermelon can be reached by providing adequate nutrition in quantity and when plants need it most. It is known that well-nourished better resist biotic abiotic stresses, being determinants for more sustainable management. In this sense, the objective present study was to evaluate plant growth, rate nutrient absorption, proportion estimate exported nutrients fruits. experiment implemented randomized block design with eight treatments (phenological phases) - 33 40 (growth), 47 54 (flowering), 61 68 (filling), 75 82 (maturation) days after planting (DAP). Each evaluation consisted collection dry mass, macro, micronutrient analysis shoot (leaves stems), fruits, entire plant. period between DAP one highest matter increment. accumulation macronutrients showed following decreasing order: Ca>N>K>Mg>P>S, fruits: K>N>P>Ca>Mg>S whole plant: K>N>Ca>P>Mg>S. For micronutrients, order were Fe>Mn>Zn>B>Cu, fruits Fe>B>Zn>Mn>Cu.