Rice cultivation is sensitive to calcium and boron deficiencies, especially at the start of flowering, stem formation and grain filling stages.
Optimum levels of calcium in rice plants oscillate between 1.0% and 4.0%. Levels below 0.5% cause a deficiency of the element. Optimum levels of boron in rice plants oscillate between 6 and 7 ppm.
Levels below 4 ppm cause a deficiency of the element (Jones, J. B. Jr. 1998.- Plant Nutrition, manual. CRC Press LLC. Boca Ratón, Florida, USA. p147).
Calcium is essential for the stages of flowering, stem formation and grain filling in rice plants. The formation of biomass in the stem is an indicator of the quantity of viable grains.
Deficiencies of boron are linked to high percentages of empty grains and weak stems. This effect is visible when measuring biomass during harvesting.
Trials carried out in COLOMBIA by ATLÁNTICA AGRÍCOLA, where different doses of the product were compared in addition to measuring effectiveness against other commercial products and untreated controls, showed that Microcat Calcium-Boron at a dose of 1.5 L/Ha maintained satisfactory levels of calcium and boron in addition to ensuring the best levels of biomass formation in rice plant stems.