Boro rice farmers increasingly turn to watermelon production 

As Bangladesh moves through the current rabi season, a quiet yet significant transformation is taking place in the country's agricultural landscape. Lands historically devoted to Boro rice are increasingly being brought under alternative rabi crops, notably watermelon and maize. This trend is particularly visible in char and coastal areas, reflecting farmers' response to rising production costs, changing climatic conditions, and market demand, especially ahead of Ramadan.

Rising profitability, lower irrigation costs, and Ramadan demand are driving farmers in char and coastal regions to favour watermelon over traditional Boro rice, despite climatic and market challenges

The scale of this change is evident in official statistics. According to the Bangladesh Bureau of Statistics (BBS), watermelon production surged from about 581,677 metric tons to nearly 1.98 million metric tons in the most recent fiscal year, while the area under cultivation expanded from roughly 64,718 acres to around 142,817 acres. Such rapid growth signals a structural adjustment in rabi cropping patterns rather than a temporary shift.
Several factors underpin this expansion. One is the timing of water recession in char areas, which allows watermelon crops to align with peak Ramadan demand. In northern chars, floodwaters generally recede by October, enabling earlier sowing and harvest before or at the start of Ramadan. Southern chars, where floodwaters persist until December, yield watermelons later in the fasting month. This staggered supply ensures sustained market availability throughout Ramadan and allows farmers to capture higher prices.

Seasonal climate trends further strengthen watermelon's appeal. From February onward, rising temperatures increase consumer demand for hydrating fruits, making watermelon particularly popular during iftar. Warm and sunny conditions also enhance sugar accumulation in the fruit, improving sweetness and market acceptance. These conditions, combined with lower production costs, make watermelon an attractive alternative to Boro rice.

Economic considerations remain central to farmers' decisions. Boro rice, cultivated on roughly 4.07 million hectares and accounting for over half of total rice area, is highly water-intensive and requires continuous irrigation. Rising energy costs and groundwater stress make irrigation one of the largest expenses in Boro cultivation. By contrast, watermelon and maize generally need only two to three irrigations during a shorter growing period, lowering both costs and risk.

Input costs beyond irrigation further favour watermelon. Boro rice requires multiple applications of urea, TSP, MOP, gypsum, zinc, and other micronutrients over several months.

Watermelon, with its shorter crop cycle, relies mostly on basal fertilization, resulting in lower fertilizer use per hectare. While fungicides and insecticides are applied to control leaf blight, fruit rot, aphids, and fruit flies, total crop protection costs are generally lower than the combined fertilizer and pesticide expenses in Boro rice. Extension-level assessments indicate that even after considering plant protection, watermelon's total input cost per hectare remains substantially below that of Boro rice.

Profitability outcomes reinforce this trend. Regional reports suggest that in southwestern districts such as Khulna and Bagerhat, farmers converting paddy fields to watermelon earn net returns significantly higher than from Boro rice, even after accounting for labour and inputs. Maize also benefits from stable prices and assured off-take through poultry and feed markets, encouraging further diversification.

However, watermelon cultivation carries risks. The crop is highly sensitive to waterlogging, making it vulnerable to early high tides and unexpected flooding. Heavy rainfall during maturation can cause prolonged waterlogging, resulting in yield loss and quality deterioration. These risks are particularly pronounced in low-lying chars and coastal tracts, where tidal fluctuations and erratic rainfall are increasing.

Market-related challenges also persist. To capture early Ramadan prices, some farmers harvest watermelons prematurely, compromising sweetness and consumer satisfaction. Poor transport infrastructure, reliance on river crossings, and delays at ferry points exacerbate post-harvest losses and reduce net returns. While watermelon cannot be stored as long as cereals or legumes, it offers relatively better short-term storability than most rabi vegetables. Intact, mature fruits can remain marketable for one to three weeks under shaded, dry, and well-ventilated conditions, allowing farmers and traders some flexibility in managing market timing.

The rapid expansion of watermelon cultivation reflects a broader recalibration of Bangladesh's rabi agriculture. Farmers increasingly favour crops that require less water, involve lower production costs, and offer higher returns. From a policy perspective, this shift highlights the need for improved extension services, flood risk management, transport infrastructure, and efficient marketing systems. Addressing these issues is essential to ensure that crop diversification enhances farmer incomes while promoting sustainable resource use.