YIELD AND FINANCIAL ANALYSIS OF AZADIRACHTA INDICA

Abstract

Yields were determined by site index classes and alternative spacing regimes for Azadirachta indica using data from plantations in Thailand. For all site index classes, a 2 x 4 m spacing yielded greater volume than a 4 x 4 m spacing. Net present value was used to determine the financially preferred rotation ages and spacing regimes. The 2 x 4 m spacing was preferred on only the highest yielding site whereas, for the lowest yielding site, no planting was preferred. A sensitivity analysis was conducted by varying the economic assumptions regarding discount rate, prices and costs. A break even analysis was also conducted.