Cocopeat based substrate and its manufacturing method

A manufacturing method of a cocopeat substrate, comprising the steps of:

• (a) mixing raw materials, part by mass, of 70-75 parts of cocopeat, 0-0.5 parts of pH regulator, 0-0.5 parts of rooting agent, 25-30 parts of modified diisocyanate and 20-35 parts of water uniformly by a mixer with a stirring speed of 100-300 rpm to form a premixed material;
• (b) immediately after the raw materials are mixed uniformly in step (a) to form the premixed material, filling the premixed material into a mold and carrying out hot press curing at a curing temperature of 60-110° C. and a curing time of 60-90 seconds to obtain a cured cocopeat substrate;
• and
• (c) drying with hot air at a drying temperature of 60-80° ° C. to remove excess moisture, and then air cooling under room condition to obtain a finished product of cocopeat substrate,
• wherein the finished product of cocopeat substrate has an EC value less than or equal to 1.0, a pH value of 5.0-6.5, a porosity of 80-85%, and a density of 0.18-0.25 g/cm3.