![]() For this, the development of effective site-specific soil fertility management technologies and strategies to encourage farmers to practice those is essential. Hence, the requirement of a paradigm shift in soil fertility management from managing external inputs to renewable soil fertility replenishment for environmentally conscious sustainable production is required. Man-made heterogeneity in soil fertility appears to be surpassing the inherent variability in intensively cultivating agricultural lands in Sri Lanka. As a result, more than 50% of the agricultural lands in Sri Lanka have already been degraded as evidenced by very low organic carbon reserves, nutrient depletion or accumulation, and increasing soil acidity. After the “green revolution”, this has often been done by adding only synthetic N, P, and K fertilizers into soil, using improved crop varieties that require large quantities of plant nutrients, while neglecting other important aspects of soil fertility. The limited agricultural land resource in Sri Lanka is being exploited to achieve food security in the country and generate foreign exchange. ![]() It could be useful from an academic and managerial point of view. The present paper makes a substantial contribution because it’s the first study that tries to verify the utility of a method for the financial valuation of intangible resources to take into account the associated real options. When we consider the difficulties encountered in estimating the model’s parameters, the conclusion is that less than 10% of the region’s firms are likely to be in a position to directly apply the method proposed for the valuation of real option-based intangibles, which means a preliminary phase of analysis and diagnosis is required before the method can actually be applied in practice. Considering the 517 replies received it is stated that, despite three of every four CFOs answering that options were included in their intangibles, approximately one of every five is actually capable of identifying such options. The field study consisted on a telephone survey of CFOs in a random sample of Basque Country’s firms, selected using segmentation criteria based on size and business sector. ![]() (2006a, 2007) for the valuation of real option-based intangibles in the Spanish region of the Basque Country. The aim of the present is to verify the degree of applicability of the financial valuation method developed by Rodríguez-Castellanos et al.
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