adoption of BNF have generally developed as needed. This includes the nature, organization, and support for applied BNF research and development; the technology-transfer system, including the information and education subsystems; links between research and extension; increased educational levels of producers and agribusiness support personnel; availability of consultants; and strengthening of farmers' organizations. Research on these systems might provide information to improve efficiency and survival.

The adequacy of organizational structures and capital markets (for financing production and distribution of BNF inputs) also should be assessed, as well as marketing systems for current products and new products that may be forthcoming. In addition, the policy environment needed for enhancing the adoption and utilization of BNF should be studied.

BNF-induced changes at the farm and infrastructure level may well trigger changes in the structure of the agricultural sector, such as number and size of farms, input production and distribution industries, product-marketing firms, and rural institutions.

Research is needed to develop a policy that facilitates structural changes and eases the transitional costs and problems of the people involved. Widespread adoption of farm-level BNF technology is also likely to lead to changes in land use. Thus, existing land-use policies and practices should be examined for their incentive or disincentive effects on BNF technology adoption and on the farm profitability and well-being of rural communities.

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