The invention relates to the technical field of
agriculture, in particular to a buried fertilization device for garden
seedling cultivation. The buried fertilization device comprises a base, a lower
pipe box and a liquid
medicine tank are fixedly connected to the upper end of the base, a
sponge box is connected to the upper portion of the lower
pipe box through a polish rod limiting mechanism, theliquid
medicine tank is connected with a
sponge box through a hose, and a stirring
assembly is arranged in the liquid
medicine tank; and a
sponge block is arranged in the sponge box, an
extrusion assembly is further arranged in the sponge box, an adjusting rod and six inserting pipes are arranged between the sponge box and the lower
pipe box, cotton bundles are arranged in the inserting pipes, agear transmission mechanism is arranged in the lower pipe box, and the
gear transmission mechanism is connected with the six inserting pipes. The water absorption amount of the sponge block is controlled through the
extrusion assembly in the sponge box, so that the liquid absorption amount of the cotton bundles is adjusted, and the soil chemical feeding amount can be effectively adjusted; and thesix inserting pipes can rotate at the same time through the
gear transmission mechanism in the lower pipe box, the inserting pipes drive the cotton bundles to extend into the soil through cooperationof first nut bases and external threads of the inserting pipes, and therefore the problem that the cotton bundles are difficult to insert into the soil is solved.