Human labour use with existing and prospective technologies in the semi‐arid tropics of South India
基于南印度六个村庄的研究，分析了现有和未来土地、水及作物管理技术对劳动力使用的影响，发现新技术可大幅增加就业但可能造成季节性劳动力瓶颈。
This study, based on work in six villages, seeks insights into the likely effect of the introduction of prospective land‐, water‐, and crop‐management technologies, being researched at the International Crops Research Institute for the Semi‐Arid Tropics, on the existing village labour‐use patterns in one major relevant region: peninsular India. Explicit attention is given to the similarities and differences between small and large farms and their relevance to the adoption of the prospective new technologies. Regional variation in labour utilisation reveals a tremendous employment‐creating potential in the existing tank and well irrigation systems in the Alfisols of peninsular India. The prospective technologies should increase employment, compared with existing technologies, by at least 100 per cent in the Alfisols and by over 300per cent in the deep Vertisols— but with some increase in the seasonal variability of labour demand. Given the existing availability of labour, there will be, with the improved watershed technologies, major farm labour bottlenecks. These should eventually generate increased wage rates and employment potentials. However, even temporary adverse effects on the timelessness of operations could be critical to the success of a double‐cropping and/or intercropping technology aiming at greatly increased yields. This would create demands for selective mechanisation, for example, of threshing.