The efficiency of magnesium (Mg) on rice growth, biomass partitioning and chlorophyll contents in alkaline soil condition

Abstract

Magnesium (Mg) is recognized as an essential macronutrient because of its involvement in several morphological and physiological processes in numerous plant species. While, its deficiency in the soil lead to cause the severe reduction in plant growth and yield. The purpose of the current study was to evaluate the efficiency of Mg at (40, 80 and 160 kg/ ha) for rice growth, yield, biomass production and chlorophyll contents as well as Mg availability in in calcareous soil. Results demonstrated that the addition of Mg showed the prominent increase in rice plants vegetative growth, shoot and root fresh and dry biomass as well as enhance the availability of NPK in calcareous soil. Similarly, the significant increase in chlorophyll contents was also observed with the increasing rate of Mg fertilization. In conclusion, addition of Mg fertilizer in calcareous soils is considered an effective strategy for the rice growth.