A Boron Deficiency in Sisal (Agave Sisalana Perrine)

Abstract

During the course of sand culture investigation sat Mlingano dealing with the macronutrient status of sisal plants, a new leaf symptom was observed. This symptom took the form of a cracking of the leaf epidermis, but it only occurred on well-developed plants with25 leaves or more and on plants which were at least 30 cm. high. Plants were affected more or less irrespective of the macronutrient treatment. All these plants received a complete micronutrient solution but the occurrence of the symptom on these large plants suggested that the supply of one of the micronutrients might be approaching a level of deficiency.