Effect of deficiencies and excesses of phosphorus, potassium and boron on the physiology and growth of avocado (Persea americana, cv. Hass) plants

In order to observe the effects of nutrients: potassium (K), boron (B) and phosphorus (P), on physiological and growth variables in avocado var. Hass, seven treatments and four repetitions with three dose levels were evaluated: (1) deficiency of the respective element: 50% or half of the complete fe...