Mustard plants (Brassica juncca) 'Lisa' were cultivated in pots containing fine crushed quartz. The plants were irrigated several times a day with several nutrient solutions. The treatments were: all nutrients, -N, -P, -K, -Ca, -Mg, -S, -B. Once the plants sowed a clear picture of malnutrition their were harvested and analyse for the elements. The authors concluded: - the omission of the nutrients affected with severity the growth of the plants; - the malnutrition symptoms were easy identificated for all elements; - the normal and abnormal leaves presented the following concentrations: N% 3.68-3.44; P% 0.60-0.50; K% 4.97-1.03; Ca% 2.40-0.46; Mg% 1.00-0.06; S% 0.31-0.13 B ppm 85-23.