Crop Nutrient Limitations in Intensified Cropping Sequences on the Ganges Delta Coastal Floodplains

Requirement and use efficiency of nitrogen in transplanted Aman rice at Ganges tidal water flooded coastal ecosystem

“…Every plot received equal P and K fertilizers (15 and 50 kg ha -1 P and K, respectively). Sulfur, zinc, or other nutrients were not applied in the field because, in our earlier experiments, we found no response to those elements in rice (Haque et al, 2023a). Urea, triple super phosphate, and muriate of potash were the sources of N, P, and K, respectively.…”

“…Increasing macro and micronutrients may be the most common technique for enhancing crop yields (Howlader et al, 2013;Hania et al, 2013;Begum et al, 2015). Nitrogen is the most limiting element, but the ecosystem usually loses more than half of the applied nitrogen (Haque et al, 2023a). In flooded rice, water depth may fluctuate during the growing season due to tidal water submergence; improving nitrogen performance is especially problematic (Ladha et al, 2005).…”

Productivity Improvement in Coastal Region of Bangladesh through Improving Rice-based Cropping Patterns and Optimizing Nutrient Management

“…The initial soils of both fields were very poor in nitrogen and phosphorus, poor in sulfur, and rich in zinc, while K and B were at optimum levels. Haque et al (2023) also reported that coastal soils are deficient in N and P. After completion of the two-year cropping cycle, the post-harvest soils were more acidic in nature, and salinity levels were at the peak.…”

“…Therefore, there is a good scope to include sunflower or sweet gourd in rice-based cropping patterns of the coastal region especially when following high-yielding short-duration variety for aman rice; however, cropping pattern-based nutrient management is then a major challenge (Bell et al, 2019;Kabir et al, 2019;Haque et al, 2023).…”