This invention relates to the field of waste utilization and
organic fertilizer preparation technology, specifically to a high-carbon, low-
nitrogen organic fertilizer prepared from bayberry branches and its preparation method. The
organic fertilizer raw materials, by weight, include: 80-150 parts of crushed bayberry branches, 3-5 parts of a
nitrogen source, 0.15-0.2 parts of a compound
microbial agent, and 0.1-0.15 parts of auxiliary materials; the
nitrogen source is one or a combination of
manure and
urea; the compound
microbial agent is selected from one or a combination of
lignin-degrading
bacteria, nitrogen-fixing
bacteria,
cellulose-decomposing
bacteria, and
phosphorus- and
potassium-solubilizing bacteria; the auxiliary material is a mixture of
lime and
gypsum. The carbon-to-nitrogen ratio of the mixed raw materials is 45-70:1. This invention enables the resource recycling of bayberry branches, producing high-quality, high-efficiency organic
fertilizer that is well-suited to the growth characteristics of bayberry cultivation, which requires strict nitrogen control. It can effectively reduce the fruit drop rate, improve
fruit flavor, and enhance
sweetness and quality. Furthermore, this invention can sustainably improve
soil fertility, maintain soil microbial
community stability, and create a favorable environment for bayberry
root growth.