Autumn leaves are excellent raw materials for composting, and selecting the right leaves is crucial for ensuring the fermentation efficiency of organic fertilizer production equipment like large wheel compost turning machines. Not all fallen leaves are suitable for large wheel compost turning machines; selection based on characteristics and potential contamination is necessary to produce high-quality organic fertilizer and lay the foundation for subsequent processing by equipment such as rotary drum granulators.
Prioritize broadleaf tree leaves, such as poplar, willow, and sycamore leaves. They are thin in texture and have moderate fiber content, allowing them to mix thoroughly with other materials under the action of the large wheel compost turning machine. They have good aeration and decompose easily, resulting in a short fermentation cycle. Sycamore and poplar leaves decompose the fastest, producing fine-textured material after fermentation, which is more suitable for subsequent processing by organic fertilizer production equipment.
Coniferous tree leaves, such as pine needles and cypress leaves, should be used cautiously. They contain oils and resins, and direct addition to the large wheel compost turning machine can lead to incomplete fermentation. If used, they should be crushed beforehand, mixed with broadleaf leaves at a 1:3 ratio, and combined with livestock and poultry manure to balance the carbon-nitrogen ratio, avoiding a reduction in the overall operating efficiency of the organic fertilizer production equipment.
Three types of fallen leaves should be strictly avoided: firstly, leaves contaminated by exhaust fumes and pesticides, which can pose safety risks to the organic fertilizer processed by subsequent rotary drum granulators; secondly, leaves severely affected by pests and diseases, which can spread diseases and pests; and thirdly, leaves with excessively thick textures, such as magnolia leaves, which, if not crushed, will hinder the mixing process of the large wheel compost turning machine and increase the workload of subsequent equipment.
It is recommended to crush the collected fallen leaves to 2-5 centimeters before adding them to the large wheel compost turning machine for mixing and fermentation with other raw materials. The mature compost can then be sent to organic fertilizer production equipment such as rotary drum granulators to be processed into granular fertilizer, increasing its resource utilization value.
