Abstract Solar powered irrigation system (SPIS) irrigation has emerged as a promising technology in Bangladesh. The aim of this study to find the financial and environment importance of SPIS. This study also analyzes the factor demand and elasticity of substitute for SPIS irrigation in Boro rice production. The financial analysis indicate that SPIS user had significantly higher gross return, net return and benefit cost ratio (BCR) than diesel powered irrigation system (DPIS) user. The value of BCR for SPIS user was found 1.313 and 1.029 for DPIS user. Replacing half of diesel powered irrigation system can reduce more than one million carbon emission in environment from agricultural source. The result also revealed that irrigation system is highly inelastic and the result showed that an increase and decrease in price of irrigation wouldn’t have significant impact on demand of irrigation. The result indicates that for Boro rice production farmer had to use required amount of irrigation in field. Complementary relationship was found between seed and human labour, irrigation and human labour. Substitute relationship was found between machinery and seed, machinery and irrigation, machinery and human labour, machinery and fertilizer, seed and irrigation, seed and fertilizer, irrigation and fertilizer, human labour and fertilizer.

中文翻译：

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博罗水稻生产太阳能灌溉系统的财务和要素需求分析：以孟加拉梅赫布尔地区为例

摘要 太阳能灌溉系统 (SPIS) 灌溉已成为孟加拉国的一项有前途的技术。本研究的目的是找出 SPIS 的财务和环境重要性。本研究还分析了波罗水稻生产中替代SPIS灌溉的要素需求和弹性。财务分析表明，SPIS 用户的总回报、净回报和收益成本比 (BCR) 显着高于柴油动力灌溉系统 (DPIS) 用户。发现 SPIS 用户的 BCR 值是 1.313，DPIS 用户的 BCR 值是 1.029。更换一半的柴油动力灌溉系统可以减少农业来源的环境碳排放超过百万。结果还揭示了灌溉系统的高度非弹性，结果表明，灌溉价格的上涨和下跌对灌溉需求没有显着影响。结果表明，对于 Boro 水稻生产，农民必须在田间使用所需的灌溉量。发现种子与人类劳动、灌溉与人类劳动之间存在互补关系。发现机械与种子、机械与灌溉、机械与人力、机械与肥料、种子与灌溉、种子与肥料、灌溉与肥料、人力与肥料之间存在替代关系。发现种子与人类劳动、灌溉与人类劳动之间存在互补关系。发现机械与种子、机械与灌溉、机械与人力、机械与肥料、种子与灌溉、种子与肥料、灌溉与肥料、人力与肥料之间存在替代关系。发现种子与人类劳动、灌溉与人类劳动之间存在互补关系。发现机械与种子、机械与灌溉、机械与人力、机械与肥料、种子与灌溉、种子与肥料、灌溉与肥料、人力与肥料之间存在替代关系。