The present invention discloses a slow-release biological
organic fertilizer, which is characterized by comprising the following raw materials by weight: 20-30% of
Perilla Frutescens seed, 6-10% of hemp seed, 5-10% of
fly ash, 15-25% of an
organic matter, 10-15% of a high barrier property
organic matter, 10-20% of an amino resin-expanded
graphite complex, 5-10% of a degradable
polymer, 5-8% of a
silicate mineral, and 10-20% of
humic acid. According to the present invention, the
silicate mineral, the biological
fertilizer and other components are integrated, such that characteristics of rich
nutrition variety, strong
crop specificity, stable physical and chemical indicators, excellent interaction, efficiency, fast-acting property, long-acting property, no
toxicity, and wide application are provided; the amino resin-expanded
graphite complex is adopted as the film forming substance, such that the release period of the
fertilizer is increased, and the
fertilizer efficiency of the fertilizer of the present invention is equal to or higher than the fertilizer efficiency of the fertilizer in the prior art; and the
plant diseases and the
insect pests of the crops are reduced, the
stress resistance is enhanced, the film body is the fertilizer material, and no harm is produced to the environment.