Productivity impacts and nutrient balances of an intensive potato-mungbean-rice crop rotation in multiple environments of Bangladesh

Jahan, Mahbuba; Hossain, Akbar; Sarkar, M. A. R.; Silva, Jaime A. Teixeira da; Ferdousi, M. N. S.

doi:10.1016/j.agee.2016.06.032

Cited by 27 publications

(22 citation statements)

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“…Crop rotation is an excellent practice for protected vegetable production; this cultivation system effectively improves soil physicochemical characteristics, regulates soil fertility status, and increases crop production by changing the soil micro-environment [14,80]. An increasing number of studies demonstrate that environmental factors shape the fungal community and structure [21,80].…”

Section: The Relationships Between Microorganism Taxa and Soil Featurmentioning

confidence: 99%

Dynamics of a Soil Fungal Community in a Three-Year Green Garlic/Cucumber Crop Rotation System in Northwest China

2018

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Abstract:A decreased soil biological environment in terms of an unstable microbial population and diversity index is primarily caused by intensive continuous cropping systems. In this study, a crop rotation system was established to evaluate the soil fungal diversity using a pyrosequencing-based analysis during three successive growing seasons (2013, 2014, and 2015) under a field pot investigation. We found that overall green garlic/cucumber rotational effects increased cucumber productivity under these growing practices. Analysis of fungal communities in rhizosphere soils by high-throughput pyrosequencing showed that the estimated treatment effects were more obvious during the three-year trials, and OTU richness was much higher than the control in cucumber-planted soils. The relative frequencies of fungal diversity showed variable responses before and after rotation practices, and mainly α-diversity of fungi increased in garlic planted soil and again decreased after cucumber planted soil in each year. The phylogenetic classification illustrated that the fungal communities were dominated by the taxa Ascomycota, Basidiomycota, Chytridiomycota, Glomeromycota, and Zygomycota across all samples. Particularly, the relative abundance of the taxon Ascomycota was largely and predominantly enriched with the increasing number of garlic bulbs during the three years. Moreover, the majority of abundant taxa positively correlated with available P and K contents, while being highly negatively correlated with soil pH, EC, and SOC. These results indicate that garlic-cucumber-based crop rotations induce fungal richness and diversity and promote the sustainability of agricultural ecosystems, thus enhancing crop growth and production.

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Section: The Relationships Between Microorganism Taxa and Soil Featurmentioning

confidence: 99%

Dynamics of a Soil Fungal Community in a Three-Year Green Garlic/Cucumber Crop Rotation System in Northwest China

2018

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“…While there is limited scope for expanding the cultivated area under cropping in South Asia, including Bangladesh, intensification of land for crop production and increase in crop productivity could help meet the food demand of an increasing population (Dobermann et al 2003a,b;Timsina et al 2011Timsina et al 2018. In Bangladesh, depending on the ecological condition of a given agroecological zone (AEZ) and the traditional farming, rice is grown in a range of cropping systems from monocropping to multiple-cropping (Timsina and Connor 2001;Jahan et al 2016;Hossain et al 2016). Chemical fertilizers are an essential component of modern crop production systems (Timsina 2018), with about 50% of the world's crop production being attributed to chemical fertilizer use.…”

Section: Introductionmentioning

confidence: 99%

“…Higher rice yields, on a sustainable basis, can only be harvested through balanced and integrated management of nutrients. Soil test-based fertilizer application, to achieve target yield, can help overcome the problem of nutrient mining from soils (Jahan et al 2016;Hossain et al 2016;Alam et al 2017). Nonetheless, intensive cropping with modern varieties, for example, three rice crops per year, induces micronutrient deficiency in soils due to uptake by plants and leaching by monsoon rains and irrigation (Jahan et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Soil test-based fertilizer application, to achieve target yield, can help overcome the problem of nutrient mining from soils (Jahan et al 2016;Hossain et al 2016;Alam et al 2017). Nonetheless, intensive cropping with modern varieties, for example, three rice crops per year, induces micronutrient deficiency in soils due to uptake by plants and leaching by monsoon rains and irrigation (Jahan et al 2016). This risk can be attenuated by the addition of organic manures (Baruah and Baruah 2015;Jahan et al 2016) and incorporating crop residues (Devi et al 2017) as well as inclusion of legumes in rotation, without any yield penalty (Hua et al 2015;Hossain et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Productivity, nutrient balance, and economics of monsoon rice under different nutrient management practices in two agro-ecological zones of Bangladesh

et al. 2019

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Inherently poor soil fertility and non-adoption of fertilizer recommendations based on soil test and yield targets by farmers limit the productivity and profitability from monsoon rice in Bangladesh and much of South Asia. In the Level Barind Tract (LBT; AEZ-25) and the High Ganges River Floodplain (HGR; AEZ-11) agro-ecological zones (AEZs) of Bangladesh, monsoon (aman/kharif) season transplanted rainfed rice (known as T. aman rice) is grown in large areas after maize, wheat and/or mungbeans, with residues of each crop removed from the field after grain harvest. This results in lower grain yield and lower profits in these AEZs as compared with other AEZs. Nutrient management, based on soil test, yield targets, or integrated use of inorganics and organics for each AEZ together with retention of crop residue, has the potential to increase rice yield, reduce production cost and increase income. With this hypothesis, this study was conducted to determine the optimum nutrient management practices for achieving higher yield, maintaining apparent soil nutrient balance, and obtaining high profits from monsoon rice. Twelve nutrient management options were evaluated, of which the first six were: (i) 80-16-44-12-2 kg ha-1 of N, P, K, S, Zn respectively for a high yield goal (T1; ‘HYG’); (ii) 56-12-32-8- 1.5 kg ha-1 respectively for a medium yield goal (T2; ‘MYG’); (iii) 65-13-32-9-2 kg ha-1 respectively plus 5 t ha-1 cowdung as integrated plant nutrient management system (T3, ‘IPNS’); (iv) 67-14-41-9-2 kg ha-1 respectively as a soil test-based fertilizer management strategy (T4; ‘STB’); (v) 40-9-11-0-0 kg ha-1 respectively as per farmers’ practice (T5; ‘FP’) and (vi) 0-0-0-0-0 kg ha-1 as a control (T6; ‘CON’). The remaining six treatments were the same as above but each also included the crop residue incorporation (CRI), i.e., (vii) T7, ‘HYG+CRI’; (viii) T8, ‘MYG+CRI’; (ix) T9, ‘IPNS+CRI’; (x) T10, ‘STB+CRI’; (xi) T11 ‘FP’+CRI’; and (xii) T12, ‘CON+CRI’. In both AEZs, STB plus CRI resulted in the highest rice yield (p≤0.05) followed by ‘STB’ and ‘IPNS+CRI’. In comparison with ‘FP’ and ‘CON’, each without CRI, balances were positive (p≤0.05) for P, S, Zn and B but were negative for N and K in ‘HYG’, ‘MYG’, ‘IPNS’ and ‘STB’ with or without CRI. In both AEZS, STB nutrient management had the highest (p≤0.05) net returns (526 & 487 US$ ha-1, respectively), highest benefit cost ratio (BCR; 3.54 & 3.36) and highest marginal benefit cost ratio (MBCR; 10.47 & 10.19). These were followed by STB+CRI’ and ‘IPNS’, while they were lowest (p≤0.05) for CON and FP. We recommend that nutrient application, based on soil test with incorporation of mungbean residue, followed by IPNS, could be the best strategies for achieving high yield, improving soil fertility and for fetching a higher profit from monsoon rice in Bangladesh and similar soils and growing environments of South Asia.

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“…En Ecuador se practica un tipo de labranza reducida llamada "Huacho rozado". Bayer et al 2000;Corazza et al 1999;Follett 2001;Jahan et al 2016;Smith et al 2008 Moran et al 2011;Xia et al 2016…”

Section: Medidas Seleccionadas Con Alto Potencial De Mitigaciónunclassified

Estrategias agrícolas de mitigación y adaptación al cambio climático : comparación en sistemas de producción en la Región Andina y en España

Terán¹,

Marlene²

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Productivity impacts and nutrient balances of an intensive potato-mungbean-rice crop rotation in multiple environments of Bangladesh

Cited by 27 publications

References 41 publications

Dynamics of a Soil Fungal Community in a Three-Year Green Garlic/Cucumber Crop Rotation System in Northwest China

Dynamics of a Soil Fungal Community in a Three-Year Green Garlic/Cucumber Crop Rotation System in Northwest China

Productivity, nutrient balance, and economics of monsoon rice under different nutrient management practices in two agro-ecological zones of Bangladesh

Estrategias agrícolas de mitigación y adaptación al cambio climático : comparación en sistemas de producción en la Región Andina y en España

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