1. Environmental temperature adaptability: The use of organic fertilizer equipment should be suitable for environmental temperature, especially in areas with greater climate change, such as Shaanxi and other central and western regions. The equipment should be able to operate stably under different climatic conditions such as dry spring, hot and rainy summer, cool and wet autumn, and cold and dry winter.

2. Technical mastery: Operators need to be familiar with the performance, operation methods, maintenance essentials, production capacity and application scope of organic fertilizer equipment, as well as the role of all controllers and alarm devices of the equipment.

3. Raw material supply: The main raw materials of organic fertilizer production line include pig manure, cow manure, chicken manure, furfural residue, straw, etc. It is necessary to ensure the reliability of raw material supply, and the supply shall not be lower than a certain standard.

4. Process flow: The basic process flow of organic fertilizer production line includes several processes such as inoculation and fermentation of organic materials (pre-fermentation), main fermentation, crushing, compounding and mixing, drying, granulation, cooling, screening, metering and packaging.

5. Environmental protection and energy saving: Organic fertilizer equipment should meet environmental protection requirements, reduce energy consumption and environmental pollution in the production process, and meet the relevant national standards.

6. Compliance with safety technical regulations: In the process of design, construction, installation, commissioning, operation and maintenance, safety technical regulations and related equipment safety requirements should be complied with.

To sum up, the use of organic fertilizer equipment needs to consider environmental adaptability, technical mastery, raw material supply, process flow, environmental protection and energy saving, policy support, safety regulations and facilities and equipment requirements and other conditions.