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shang hai shi jiao shu cai pen guan ji shu jing ji xiao yi fen xi
Author(s): 
Pages: 32-36
Year: Issue:  1
Journal: Water Saving Irrigation

Keyword:  蔬菜喷灌效益分析;
Abstract: 本文采用横向多点取样法建立蔬菜喷灌增产效果的生产函数模型,估算1982年到1988年上海市郊蔬菜喷灌经济效益,并以纵向对比法结合灌溉效益分摊系数法进行校核。结果表明,两种方法非常接近,可以认为两种方法计算结果是令人满意的。此外,本文对喷灌的省工经济效益也做了定量的计算,仅供读者参考。
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