Population growth, increasing wealth and changing diets require agriculture in Sub‐Saharan Africa to intensify to meet future food demand and ensure food security in the region. Conservation agriculture can increase yields in the long run and reduce the negative environmental impacts of intensive farming. In changing the mix of resources used and how they are managed, the adoption of conservation agriculture can have a direct impact on farm labour. We study the relationship between conservation agriculture and labour input requirements as observed in five Sub‐Saharan African countries. We focus on the amount of work required and the source of the work employed (household or hired, by gender, by children and by production stage). We apply multinomial endogenous switching regression models on a panel of household and farm data from Ethiopia, Kenya, Malawi, Mozambique and Tanzania. We find that conservation agriculture increases farms’ labour input requirements. Higher demand is driven by more work during the harvesting and threshing stages. Increases in labour requirements are usually met by household labour, not paid work. The workload change is also higher for women than for men, and, in certain cases, is met by children.

中文翻译：

---

保护性农业会改变劳动力需求吗？撒哈拉以南非洲地区可持续集约化的证据

人口增长，财富增加和饮食变化要求撒哈拉以南非洲加强农业以满足未来的粮食需求并确保该区域的粮食安全。从长远来看，保护性农业可以提高产量，并减少集约化农业对环境的负面影响。在改变所使用资源的混合方式和管理方式时，采用保护性农业可以直接影响农业劳动。我们研究了撒哈拉以南非洲五个国家观察到的保护性农业与劳动力投入需求之间的关系。我们专注于所需的工作量和工作来源（家庭或雇用，按性别，按儿童和按生产阶段划分）。我们在来自肯尼亚埃塞俄比亚的家庭和农场数据面板上应用多项式内生转换回归模型 马拉维，莫桑比克和坦桑尼亚。我们发现保护性农业增加了农场的劳动力投入需求。收获和脱粒阶段的更多工作推动了更高的需求。劳动力需求的增加通常通过家庭劳动而不是有偿工作来满足。妇女的工作量变化也比男子高，在某些情况下，儿童可以应付。