The invention discloses an
extrusion method of
porphyra haitanensis seed vegetables for repeatedly releasing carpospores. The method comprises the following steps: maturation promoting is performed onthe
porphyra haitanensis seed vegetables, the
moisture ratio of the seed vegetables after maturation promoting is 25-35%, and the
area ratio of deep red patches to the whole
thallus is about 15%; theseed vegetables after maturation promoting are put into
seawater to release the carpospores, and the carpospores are inoculated on conches; the
porphyra after releasing the carpospores is fished out,and packed into a double-layer plastic net bag after the porphyra is washed, and then sent to an
extrusion apparatus to be subjected to
extrusion, and the
seawater after the porphyra is washed and the extrusion water are combined and inoculated on conches as a
spore water; and the
moisture ratio of the extruded porphyra is made to be 25-35% through water evaporating, then the porphyra can be preserved as the seed vegetables and can continue to release the carpospores as the seed vegetables. According to carpospores repeated releasing of the
porphyra haitanensis seed vegetables, the deficiencyof seed vegetable insufficiency is solved, and the
utilization rate of specific high-quality seed vegetables is improved. The method has the advantages of convenient operations and simple managements, and the efficiency and the benefit of
seedling-raising and cultivation can be significantly improved.