The investment cost of establishing a powdered organic fertilizer production line is affected by a variety of factors, including production scale, equipment selection, raw material costs, labor costs, and operation locations. Here are some possible cost items and rough estimates:

1. Equipment cost: The key equipment of powder organic fertilizer production line includes crusher, granulator, screening machine, packaging machine, etc. The price of these organic fertilizer equipment varies according to brand, model and production capacity. Generally speaking, the cost of a complete set of equipment may range from several hundred thousand yuan.

2. Raw material cost: The cost of organic raw materials depends on the type and quantity of raw materials purchased, and the composition and ratio of organic fertilizer will also affect the cost.

3. Labor costs: Operating a production line requires workers to operate and manage it, and labor costs vary with the number of people employed and the wage level of the region.

4. Space rental or purchase: The cost of space required for the production line will vary according to geographical location and size. Operating costs: including power consumption, maintenance costs, management costs, etc.

5. Environmental protection and certificate licensing: The production of organic fertilizer needs to comply with relevant environmental regulations and production licensing requirements, which may involve additional costs.

6. Taking the above factors into consideration, the initial investment estimate for establishing a powdered organic fertilizer production line may range from hundreds of thousands of yuan. The specific amount of investment needs to be analyzed and budgeted in detail based on specific market research, equipment selection and production plans.