The invention belongs to the field of agricultural
fertilizer processing, and discloses a sun-screening foliar fluid
fertilizer and a preparation method thereof. The fluid
fertilizer is prepared from the following components in percentage by
mass: 10-40 percent of sun-screening agents, 8-20 percent of water-soluble
calcium salt, 0.5-2 percent of water-soluble
boron salt, 1-12 percent of water-soluble
zinc salt, 4-8 percent of water-soluble
potassium salt, 1-7 percent of a
wetting agent, 1-5 percent of an anti-freezing agent, 4-10 percent of a dispersing agent, 0.1-1.0 percent of a defoaming agent, 0.1-2.0 percent of a
thickening agent and the balance of water. The sun-screening foliar fluid fertilizer has sun-screening and resisting effects and an effect for improving
disease resistance by selecting
titanium dioxide,
calcium carbonate,
zinc oxide and the like as the sun-screening agents and adding trace elements, namely
calcium,
boron,
zinc and the like, for reinforcing
plant adverse resistance. Field test production application proves that the sun-screening foliar fluid fertilizer has a remarkable sun-
screening effect, and has a preventing and controlling effect reaching 80-90 percent.