Patent ID: 9061949
Filing Date: 2015-06-23
Classification: A01N,C05D,C05F

Abstract:
1. A method for increasing the content of at least one metal component selected from the group consisting of the elements of manganese, iron, copper and zinc in a plant, which comprises treating the foliage of a plant with a composition containing 5-aminolevulinic acid or a derivative thereof represented by the following general formula (1), or a salt thereof in a concentration of 0.2 to 5 ppm per each time: wherein R wherein a soil or water culture medium in which the plant grows contains at least one metal component selected from the group consisting of the elements of manganese, iron, copper and zinc, and/or the composition further contains at least one metal component selected from the group consisting of the elements of manganese, iron, copper and zinc, whereby the content of at least one metal component selected from the group consisting of the elements of manganese, iron, copper and zinc in the plant is increased.