Productivity and Nutrient Balance of Lentil- Mungbean -T. Aus - T. Aman Rice Cropping Pattern in High Barind Tract

Hossain, Sajjad; Alam, Smm; Abida, MY; Hasan, Mohammad Mahmudul; Khan, A. A.

doi:10.3329/baj.v21i1.39367

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…A few examples are provided herewith. Hossain et al [32] reported negative N and K balances even with legume based four-crops cropping pattern (Lentil-Mungbean-T Aus-T Aman). Negative balances even after NPK application with wheatrice and maize-rice patterns were reported by Salam et al [33].…”

Section: Discussionmentioning

confidence: 99%

Quadruple Cropping Patterns in Bangladesh: Scope and Limitations

Biswas¹,

Saha²,

Shahidullah³

et al. 2022

ASRJ

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Growing crops in a piece of land influence soil fertility depending on adopted management practices and intensity of cropping. Farmers in many cases do not use balanced fertilizers because of socio-economic conditions and thus nutrient mining is inevitable. We hypothesize that soil degradation is likely along with reduced crop productivity in future with researcher proposed four crops production packages. Semi-structured questionnaire, and IDRISI3.2 were used for data collection and mapping, respectively. Net quadruple cropped areas were about 7.09%. Soil fertility scores of those areas were 40–50 and above 50, covering about 4.56% and 3.66%, respectively of the net cropped areas indicating medium fertility status. Apparent nutrient balances for nitrogen, phosphorus, potassium, sulfur, calcium, magnesium and silicon were negative with researcher's introduced cropping patterns and fertilizer management compared to existing patterns. Zinc with all introduced cropping patterns and boron with Potato–Boro–T Aus–T Aman pattern are increasing but other micro nutrients are diminishing. Phosphorus and Sulfur build ups are taking place under farmer's practice in Mustard–Boro–T Aman, Potato–Boro–T Aman and Boro–Fallow–T Aman patterns. Zinc build up is taking place under farmer's managed cropping patterns; but iron, copper, boron, molybdenum and chloride are deteriorating from the soils. These indicate that growing four crops in a year with existing fertilizer recommendations are not sustainable in terms of soil fertility. Adoption of such intensive crop culture by the majority of the farmers is unlikely except in some sporadic areas having market driven economy of vegetable cultivation.

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Section: Discussionmentioning

confidence: 99%

Quadruple Cropping Patterns in Bangladesh: Scope and Limitations

Biswas¹,

Saha²,

Shahidullah³

et al. 2022

ASRJ

View full text Add to dashboard Cite

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Modification of Nutrient Requirements for a Four Crop-Based Cropping System to Increase System Productivity, Maintain Soil Fertility, and Achieve Sustainable Intensification

et al. 2022

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Sustainable and resilient cropping intensity is now a global focus to address the food demand and nutrition security of the growing population. For sustainable intensification, maintaining soil fertility is a key concern. The nutrient management for the recently developed four crop-based cropping system in Bangladesh has not yet been studied. Hence, field experiments were conducted on the nutrient management of the four crop-based cropping system [Aus (pre-monsoon rice), Aman (monsoon rice), lentil, and mungbean] in calcareous soil in Bangladesh during the years of 2016/17 and 2017/18 to determine the appropriate fertilizer management package to improve crop productivity and sustain soil fertility. The experiment had six treatments assigned in a randomized complete block design with three replications. The treatments included T1 = control (without synthetic fertilizer), T2 = 50% recommended dose of fertilizer (RDF), T3 = 75% RDF, T4 = 100% RDF, T5 = 125% RDF, and T6 = farmers’ practice (FP). The results revealed that the 125% RDF significantly contributed to higher yields of all four crops. The rice equivalent yield (REY) was the highest for the fertilizer management of 125% RDF, which was 45.5%, 9.4%, and 12.2% higher than the control (T1), 100% RDF (T4), and FP, respectively. Considering the uptake of nutrients (N, P, K, S, Zn, and B) by the crops in the cropping system, the 125% RDF was superior to the other treatments. The nutrient management practices had a positive influence on the apparent nutrient recovery (ANR) efficiency of the cropping system. The fertilizer management of 125% RDF was also economically more profitable due to the increment in the cost–benefit ratio of 26.8%, 4.4%, and 4.9% over the control, 100% RDF, and FP, respectively. The results indicate that the current fertilizer recommendations and FP for aus, aman, lentil, and mungbean are not adequate for the change from the three crop to the four crop-based pattern, and an increased dose of fertilizer is required to increase the yield of each individual crop as well as the total system’s productivity. The fertilizer use efficiency is also higher for 125% RDF than the 100% RDF and FP indicating that to sustain the soil fertility in the four crop-based system, the current RDF and FP are not sufficient. This finding will help intensive cropping areas in preventing nutrient deficiencies that would lead to a reduction in the crop yield.

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Productivity and Nutrient Balance of Lentil- Mungbean -T. Aus - T. Aman Rice Cropping Pattern in High Barind Tract

Cited by 2 publications

References 7 publications

Quadruple Cropping Patterns in Bangladesh: Scope and Limitations

Quadruple Cropping Patterns in Bangladesh: Scope and Limitations

Modification of Nutrient Requirements for a Four Crop-Based Cropping System to Increase System Productivity, Maintain Soil Fertility, and Achieve Sustainable Intensification

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