Optimizing lowland agriculture: Raised and sunken bed technology in the north eastern Himalayas

Abstract

The north eastern region of India is blessed with diverse crops, high rainfall, and a suitable agroclimate. However, the region faces unique challenges such as waterlogging and poor drainage during summer, as well as water stress in the winter season. In this context, adoption of raised and sunken bed (RSB) technology in valley lands ensures the proper utilization of available land resources, increases cropping intensity by up to 300%, and enhances farm profitability for longterm benefits. Raised beds can be used for growing vegetables such as okra, tomato, potato, French beans, carrot, brinjal, and broccoli, while sunken beds can be utilized for cultivating rice, followed by vegetable peas, lentils, and other crops using proper resource conservation technologies. Field
experiments conducted at ICAR Research Complex for North Eastern Hill Region, Meghalaya, have demonstrated the system’s effectiveness in enhancing productivity, soil health, the sustainable yield index, and economic viability. However, its success depends on strategic crop selection and effective nutrient management practices. In summary, the adoption of RSB technology in valley
lands could be a practical approach towards achieving food security, improving soil fertility, and enhancing economic resilience in the north eastern Himalayan region.