Forage economics calculator web tool: A decision support system for forage management.

Economic analysis of forage production and handling aids in making an educated decision related to growing or buying forage, setting forage prices, and purchasing additional equipment. Manual calculation of economics is highly complex, tedious, and time-consuming. Therefore, a multi-device web-based tool, called the "forage economics calculator web tool" (FECWT) was developed using HTML, CSS, and JavaScript. The tool's interface was designed for a user-friendly experience with easy access to commands set in an easy-to-follow layout. The FECWT uses 29 input variables to generate results "dynamically" for 37 output variables, based either on the supplied default data or with user-provided inputs (imperial or metric units). The tool emphasizes the cost of the bale collection activity performed using tractor or tractor pulling an "automatic bale picker" (ABP), while the cost of other activities (planting, fertilizer & chemical application, harvesting, and baling) are provided as direct inputs. The economic analysis outputs include net return, break-even ratio, payback period, and return on investment. Features of FECWT include the sensitivity of profit to changes in input values, and downloadable reports and charts for record-keeping. Two case studies using farmers' actual field data inputs demonstrated the FECWT's effectiveness, with its generated results corroborating well with farmers' records. The tool allows for "what-if" scenario analysis related to equipment purchase, effect of forage crop, net-return, and low-inputs scenario for different field areas suggests that an ABP purchase for field areas greater than ≥ 65 ha (≥ 160 ac) could be profitable; alfalfa and corn were the most profitable forage and grain-forage crops, where the grain revenue stream of grain-forage crops easily covers the costs and makes a profit; and a low-inputs scenario (no fertilizers, chemicals, and/or seeds) for forages (alfalfa and grass) decreased the net returns on average by 8.1 times at 50% forage yield potential suggesting the use of all inputs and increased field areas (≥ 65 ha) make a better profit in this low-inputs scenario. Potential users of this web tool include farmers, hay producers, custom hay operators, educators, agricultural extension and financial personnel, and others interested in the economics of handling bales. [Display omitted] • Web tool calculator developed uses 29 inputs to generate 37 forage economics outputs. • Economics of bale collection using tractor and automatic bale picker is emphasized. • Tool's features include inputs sensitivity and downloadable report and chart. • Tool allows what-if scenario analysis for many practical field situations. • Actual field data case studies reported satisfactory performance of the tool. [ABSTRACT FROM AUTHOR]