"direct production" is correct and usable in written English.
It can be used to describe the process of creating goods or services without relying on intermediaries. For example, "The company produces all its products in-house through a process of direct production."
Diversity and multiple land use practiced by small farmers guarantee some level of food security through direct production of food products even when commercial production is not profitable.
This change will allow us to direct production resources to other online projects.
The Strauss work, heard on Friday, is being offered in a strikingly direct production by Mr. Copley.
The agreement banned direct production and sales subsidies, but let governments continue to funnel money into new aircraft projects.
The use of zeolite catalysts has enabled the direct production of gasoline from methanol with high efficiency.
Suppose that pollution costs are $2 for the last gallon consumed, but that its $4 price at the pump is just enough to cover its direct production costs.
The replacement of blue-collar manual labourers with technical and professional workers—such as computer engineers, doctors, and bankers as the direct production of goods is moved elsewhere.
These may involve substitution of asexual reproduction for sexual or the direct production of plants by cells other than the usual ones (apomixis).
They include the direct production costs (consumption of materials and services, personnel, maintenance, general production costs).
Carbon's new materials and post-processing techniques promise to go beyond rapid prototyping and enable direct production of finished goods.
Under select conditions, the direct production of polycrystalline films of GaSb was possible.
