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Patterns of change in soil organic matter, physical properties and crop productivity under tillage practices and cropping systems in Bangladesh

Published online by Cambridge University Press:  07 April 2016

MD. KHAIRUL ALAM Open the ORCID record for MD. KHAIRUL ALAM [Opens in a new window] ,
N. SALAHIN ,
S. ISLAM ,
R. A. BEGUM ,
M. HASANUZZAMAN ,
M. S. ISLAM  and
M. M. RAHMAN
MD. KHAIRUL ALAM*
Affiliation:
Murdoch University, Perth, WA, Australia and Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
N. SALAHIN
Affiliation:
Bangladesh Agricultural University, Mymensingh, Bangladesh and Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
S. ISLAM
Affiliation:
Bangladesh Agricultural University, Bangladesh and Murdoch University, Perth, WA, Australia
R. A. BEGUM
Affiliation:
Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
M. HASANUZZAMAN
Affiliation:
Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
M. S. ISLAM
Affiliation:
Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
M. M. RAHMAN
Affiliation:
Bangabandhu Sheikh Mujibur Rahaman Agricultural University, Gazipur, Bangladesh
*
* To whom all correspondence should be addressed. Email: [email protected]
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Summary

Conservation agriculture (CA) is inadequately developed for rice-based cropping systems widely practiced in Bangladesh. The current drawback is the implementation of CA for all crops including rice (Oryza sativa L., ecotype ‘transplanted aman’ [T. aman]) to increase rice–wheat (Triticum aestivum L.) rotation productivity. It is important to identify the best combination of tillage types and cropping systems to achieve a high yield of component crops and improve soil health. Three tillage practices, assigned to main experimental plots [namely, zero tillage (ZT), conventional tillage using a rotary tiller (CT) and deep tillage using a chisel plough (DT)] and three different cropping systems, assigned to sub-plots [namely, WFT: wheat–fallow–T. aman, WMT: wheat–mungbean (Vigna radiata L. Wilczek)–T. aman and WDT: wheat–dhaincha (Sesbania rostrata)–T. aman], were tested. After 4 years, ZT under WDT and WMT significantly increased soil organic matter (SOM) at 0–150 mm depth, and these replicates also held the highest levels of total organic carbon. Soil organic carbon (C) increased at a rate of 1.17 and 1.14 t/ha/y in ZT under WDT and WMT, respectively, while CT and DT under WFT were almost unchanged. After 4 years, SOM build-up by the three-crop system (WDT and WMT) under ZT helped conserve soil moisture and improve other soil properties, such as reduction in soil strength and bulk density and increase plant available water content, thus maintaining an optimum soil water infiltration rate. Zero tillage under WMT and WDT showed significant improvements in root mass density of rice and wheat at increased soil depth. The WDT and WMT plots under DT consistently gave the highest yield followed by WDT and WMT under CT, in contrast with ZT under WMT or WDT, which showed the highest improvement in crop yields over the years. In summary, minimum soil disturbance together with incorporation of a legume/green manure crop into the rice–wheat system as well as the retention of their residues increased soil C status, improved soil properties and maximized grain yields.

Type
Crops and Soils Research Papers
Information
The Journal of Agricultural Science , Volume 155 , Issue 2 , March 2017 , pp. 216 - 238
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Copyright
Copyright © Cambridge University Press 2016 

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References

REFERENCES

Abbasi, M. K., Tahir, M. M., Shah, A. H. & Batool, F. (2009). Mineral nutrient composition of different ecotypes of white clover and their nutrient credit to soil at Rawalkot Azad Jammu and Kashmir. Pakistan Journal of Botany 41, 41–51.Google Scholar
Al-Kaisi, M. & Kwaw-Mensah, D. (2007). Effect of tillage and nitrogen rate on corn yield and nitrogen and phosphorus uptake in a corn–soybean rotation. Agronomy Journal 99, 1548–1558.CrossRefGoogle Scholar
Alam, M. K. & Salahin, N. (2013). Changes in soil physical properties and crop productivity as influenced by different tillage depths and cropping patterns. Bangladesh Journal of Agricultural Research 38, 289–299.Google Scholar
Alam, M. K., Salahin, N., Islam, M. M. & Hasanuzzaman, M. (2014). Effect of tillage practices on soil properties and crop productivity of wheat–mungbean–rice cropping system under subtropical climatic conditions. The Scientific World Journal 2014, 1–15.Google ScholarPubMed
Alam, M. K., Biswas, W. K. & Bell, R. W. (2016). Greenhouse gas implications of novel and conventional rice production technologies in the Eastern-Gangetic plains. Journal of Cleaner Production 112, 3977–3987.CrossRefGoogle Scholar
Alliaume, F., Jorge, G. & Dogliotti, S. (2012). Impact of minimum tillage, oat straw management, and chicken manure on soil water content, runoff, erosion and tomato production. Agrociencia Uruguay 16 (Special Issue), 199–207.Google Scholar
Alvarez, R., Diaz, R. A., Barbero, N., Santanatoglia, O. J. & Blotta, L. (1995). Soil organic carbon, microbial biomass and CO2–C production from three tillage systems. Soil and Tillage Research 33, 17–28.Google Scholar
Anderson, J. P. E. (1982). Soil respiration. In Methods of Soil Analysis, Part 2, 2nd edn. (Eds Page, A. L., Miller, R. H. & Keeney, D. R.), pp. 837–871. Agronomy Monograph 9. Madison, WI: ASA and SSSA.Google Scholar
Annabi, M., Houot, S., Francou, C., Poitrenaud, M. & Bissonnais, Y. L. (2007). Soil aggregate stability improvement with urban composts of different maturities. Soil Science Society of America Journal 71, 413–423.CrossRefGoogle Scholar
Aryal, J. P., Sapkota, T. B., Jat, M. L. & Bishnoi, D. K. (2015). On-farm economic and environmental impact of zero-tillage wheat: a case of North-West India. Experimental Agriculture 51, 1–16.Google Scholar
Aulakh, M. S., Khera, T. S., Doran, J. W., Kuldip-Singh, & Bijay-Singh, (2000). Yields and nitrogen dynamics in a rice–wheat system using green manure and inorganic fertilizer. Soil Science Society of America Journal 64, 1867–1876.CrossRefGoogle Scholar
Aulakh, M. S., Khera, T. S., Doran, J. W. & Bronson, K. F. (2001). Managing crop residue with green manure, urea, and tillage in a rice–wheat rotation. Soil Science Society of America Journal 65, 820–827.Google Scholar
Balasubramanian, V., Adhya, T. K. & Ladha, J. K. (2012). Enhancing eco-efficiency in the intensive cereal-based systems of the Indo-Gangetic Plains. In Issues in Tropical Agriculture Eco–Efficiency: From Vision to Reality (Eds Hershey, C. H. & Neate, P.), pp. 99–116. Cali, CO: CIAT.Google Scholar
Balota, E. L., Colozzi-Filho, A., Andrade, D. S. & Dick, R. P. (2003). Microbial biomass in soils under different tillage and crop rotation systems. Biology & Fertility of Soils 38, 15–20.Google Scholar
Baumhart, R. L. & Lescano, R. J. (1996). Rain infiltration as affected by wheat residues amount and distribution in ridged tillage. Soil Science Society of America Journal 60, 1908–1913.Google Scholar
Beare, M. H., Pohland, B. R., Wright, D. H. & Coleman, D. C. (1993). Residue placement and fungicide effects on fungal communities in conventional and no-tillage soils. Soil Science Society of America Journal 57, 392–399.CrossRefGoogle Scholar
Becker, M., Ladha, J. K. & Ottow, J. C. G. (1994). Nitrogen losses and lowland rice yield as affected by residue nitrogen release. Soil Science Society of America Journal 58, 1660–1665.CrossRefGoogle Scholar
Behera, B. K., Varshney, B. P. & Goel, A. K. (2009). Effect of puddling on puddled soil characteristics and performance of self-propelled transplanter in rice crop. Agricultural Engineering International: The CIGR Ejournal XI, Manuscript PM 08 020. Available from: http://www.cigrjournal.org/index.php/Ejounral/issue/view/34 (verified 15 February 2016).Google Scholar
Black, C. A. (1965). Method of Soil Analysis Part –I and II. Madison, WI: American Society of Agronomy.CrossRefGoogle Scholar
Brammer, H., Antoine, J., Kassam, A. H. & Van Velthuizen, H. T. (1996). Land Resources Appraisal of Bangladesh for Agricultural Development. Report 3: Land Resources Data Base, Volume II, Soil, Landform and Hydrological Data Base. Rome: UNDP/FAO.Google Scholar
Bueno, C. S. & Ladha, J. K. (2009). Comparison of soil properties between continuously cultivated and adjacent uncultivated soils in rice-based systems. Biology and Fertility of Soils 45, 499–509.CrossRefGoogle Scholar
Bunch, R. (1995). The Use of Green Manures by Villager Farmers; What we Have Learned to Date. CIDDCO Technical Report No. 3, 2 edn. Tegucigalpa MDC, Honduras: CIDICCO. Google Scholar
Chan, K. Y. & Heenan, D. P. (2005). The effects of stubble burning and tillage on soil carbon sequestration and crop productivity in southeastern Australia. Soil Use & Management 21, 427–431.Google Scholar
Chen, H., Bai, Y. H., Wang, Q. J., Chen, F., Gao, H. W., Tullberg, J. N., Murray, J. R., Li, H. W. & Gong, Y. S. (2008). Traffic and tillage effects on wheat production on the Loess Plateau of China: 1. Crop yield and SOM. Australian Journal of Soil Research 46, 645–651.CrossRefGoogle Scholar
DeFries, R. S., Foley, J. A. & Asner, G. P. (2004). Land-use choices: balancing human needs and ecosystem function. Frontiers in Ecology and Environment 2, 249–257.Google Scholar
Derpsch, R., Friedrich, T., Kassam, K. & Hongwen, L. (2010). Current status of adoption of no-till farming in the world and some of its main benefits. International Journal of Agriculture, Biology and Engineering 3, 1–25.Google Scholar
DeVita, P., Dipaolo, E., Fecondo, G., Difonzo, N. & Pisante, M. (2007). No-tillage and conventional tillage effects on durum wheat yield, grain quality and soil moisture content in southern Italy. Soil and Tillage Research 92, 69–78.CrossRefGoogle Scholar
Dick, W. A. & Durkalski, J. T. (1998). No-tillage agriculture and carbon sequestration in a Typic Fragiudalf soil of northeastern Ohio. In Management of Carbon Sequestration in Soil (Ed. Lal, R.), pp. 59–71. Boca Raton, FL: CRC Press.Google Scholar
Dobermann, A. & Fairhurst, T. H. (2002). Rice straw management. Better Crops International 16 (Special Supp), 7–9. Available from: http://www.ipni.net/publication/bci.nsf/issue/BC-INT-2002-3 (verified 15 February 2016).Google Scholar
Erenstein, O. (2009). Zero Tillage in the Rice–Wheat Systems of the Indo-Gangetic Plains: a Review of Impacts and Sustainability Implications. IFPRI Discussion Paper 00916 November 2009. 2020 Vision Initiative. Washington, DC: IFPRI.Google Scholar
Erenstein, O. & Laxmi, V. (2008). Zero tillage impacts in India's rice–wheat systems: a review. Soil and Tillage Research 100, 1–14.Google Scholar
Erenstein, O., Farooq, U., Malik, R. K. & Sharif, M. (2008). On–farm impacts of zero tillage wheat in South Asia's rice–wheat systems. Field Crops Research 105, 240–252.Google Scholar
FAO (1988). Soil Map of the World. Revised legend. Reprinted with corrections. World Soil Resources Report 60. Rome: FAO.Google Scholar
Fernández-Ugalde, O., Virto, I., Bescansa, P., Imaz, M. J., Enrique, A. & Karlen, D. L. (2009). No-tillage improvement of soil physical quality in calcareous, degradation-prone, semiarid soils. Soil and Tillage Research 106, 29–35.CrossRefGoogle Scholar
Foley, J. A., Defries, R., Asner, G. P., Barford, C., Bonan, G., Carpenter, S. R., Chapin, F. S., Coe, M. T., Daily, G. C., Gibbs, H. K., Helkowski, J. H., Holloway, T., Howard, E. A., Kucharik, C. J., Monfreda, C., Patz, J. A., Prentice, I. C., Ramankutty, N. & Snyder, P. K. (2005). Global consequences of land use. Science 309, 570–574.Google Scholar
Franzluebbers, A. J. (2002 a). Soil organic matter stratification ratio as an indicator of soil quality. Soil and Tillage Research 66, 95–106.CrossRefGoogle Scholar
Franzluebbers, A. J. (2002 b). Water infiltration and soil structure related to organic matter and its stratification with depth. Soil and Tillage Research 66, 197–205.Google Scholar
Gathala, M. K., Ladha, J. K., Saharawat, Y. S., Kumar, V., Kumar, V. & Sharma, P. K. (2011). Effect of tillage and crop establishment methods on physical properties of a medium-textured soil under a seven-year rice–wheat rotation. Soil Science Society of America Journal 75, 1851–1862.Google Scholar
Gathala, M. K., Kumar, V., Sharma, P. C., Saharawat, Y. S., Jat, H. S., Singh, M., Kumar, A., Jat, M. L., Humphreys, E., Sharma, D. K., Sharma, S. & Ladha, J. K. (2013). Optimizing intensive cereal-based cropping systems addressing current and future drivers of agricultural change in the northwestern Indo-Gangetic Plains of India. Agriculture, Ecosystem and Environment 177, 85–97.Google Scholar
Gathala, K., Timsina, J., Islam, M. S., Rahman, M. M., Hossain, M. I., Harun-Ar-Rashid, M., Ghosh, A. K., Krupnik, T. J., Tiwari, T. P. & McDonald, A. (2015). Conservation agriculture based tillage and crop establishment options can maintain farmers’ yields and increase profits in South Asia's rice–maize systems: evidence from Bangladesh. Field Crops Research 172, 85–98.Google Scholar
Ghani, A., Dexter, M. & Perrott, W. K. (2003). Hot-water extractable carbon in soils: a sensitive measurement for determining impacts of fertilization, grazing and cultivation. Soil Biology and Biochemistry 35, 1231–1243.Google Scholar
Ghimire, R., Adhikari, K. R., Chen, Z-S., Shah, S. C. & Dahal, K. R. (2012). Soil organic carbon sequestration as affected by tillage, crop residue, and nitrogen application in rice–wheat rotation system. Paddy and Water Environment 10, 95–102.CrossRefGoogle Scholar
Gonzalez-Sanchez, E. J., Ordonez-Fernandez, R., Carbonell-Bojollo, R., Veroz-Gonzalez, O. & Gil-Ribes, J. A. (2012). Meta-analysis on atmospheric carbon capture in Spain through the use of conservation agriculture. Soil and Tillage Research 122, 52–60.Google Scholar
Govaerts, B., Mezzalama, M., Unno, Y., Sayre, K. D., Luna–Guido, M., Vanherck, K., Dendooven, L. & Deckers, J. (2007). Influence of tillage, residue management, and crop rotation on soil microbial biomass and catabolic diversity. Applied Soil Ecology 37, 18–30.CrossRefGoogle Scholar
Gupta, R. & Seth, A. (2007). A review of resource conserving technologies for sustainable management of the rice–wheat cropping systems of the Indo-Gangetic plains (IGP). Crop Protection 26, 436–447.Google Scholar
Hammel, J. E. (1995). Long-term tillage and crop rotation effects on winter wheat production in Northern Idaho. Agronomy Journal 87, 16–22.CrossRefGoogle Scholar
Hao, X., Chang, C., Conner, R. L. & Bergen, P. (2001). Effect of minimum tillage and crop sequence on crop yield and quality under irrigation in a southern Alberta clay loam soil. Soil and Tillage Research 59, 45–55.Google Scholar
Hassan, A. E., Kitamura, Y., Ahmed, E. S., Samir, G. & Irshad, M. (2005). Effect of irrigation schedules and tillage system on rice productivity and soil physical characteristics: a case study in the North Nile Delta. Egypt. In Transactions of the 19th International Congress on Irrigation and Drainage, Beijing, China, 10–18 September, 2005, Vol–1A. Improving Water and Land Management for Increasing Efficiency in Irrigated Agriculture, pp. 1–19. New Delhi, India: ICID.Google Scholar
Havlin, J. L., Kissel, D. E., Maddux, L. D., Claassen, M. M. & Long, J. H. (1990). Crop rotation and tillage effects on soil organic carbon and nitrogen. Soil Science Society of America Journal 54, 448–452.Google Scholar
Haynes, R. J. (2005). Labile organic matter fractions as central components of the quality of agricultural soils: an overview. Advances in Agronomy 85, 221–268.Google Scholar
He, J., Kuhn, N. J., Zhang, X. M., Zhang, X. R. & Li, H. W. (2009). Effects of 10 years of conservation tillage on soil properties and productivity in the farming–pastoral ecotone of Inner Mongolia, China. Soil Use and Management 25, 201–209.Google Scholar
Hemmat, A. & Eskandari, I. (2004). Conservation tillage practices for winter wheat–fallow farming in the temperate continental climate of northwestern Iran. Field Crops Research 89, 123–133.Google Scholar
Hernanz, J. L., López, R., Navarrete, L. & Sánchez-Girón, V. (2002). Long-term effects of tillage systems and rotations on soil structural stability and organic carbon stratification in semiarid central Spain. Soil and Tillage Research 66, 129–141.Google Scholar
Hiremath, S. M. & Patel, Z. G. (1998). Effect of winter green manuring and nitrogen application on summer rice (Oryza sativa). Indian Journal of Agronomy 43, 71–76.Google Scholar
Holland, J. M. (2004). The environmental consequences of adopting conservation tillage in Europe: reviewing the evidence. Agriculture, Ecosystems & Environment 103, 1–25.Google Scholar
Huq, S. M. I. & Shoaib, J. U. M. (2013). The Soils of Bangladesh. The World Soils Book Series 1. Dordrecht, The Netherlands: Springer Science + Business Media.CrossRefGoogle Scholar
Husnjak, S., Filipovic, D. & Kosutic, S. (2002). Influence of different tillage systems on soil physical properties and crop yield. Rostlinná Výroba 48, 249–254.Google Scholar
Ishaq, M., Ibrahim, M. & Lal, R. (2001). Tillage effect on nutrient uptake by wheat and cotton as influenced by fertilizer rate. Soil and Tillage Research 62, 41–53.CrossRefGoogle Scholar
Islam, A. K. M. S., Haque, M. E., Hossain, M. M., Saleque, M. A. & Bell, R. W. (2010). Water and fuel saving technologies: Unpuddled bed and strip tillage for wet season rice cultivation in Bangladesh. In Soil Solutions for a Changing World: Proceedings of the 19th World Congress of Soil Science, 1–6 August 2010, Brisbane, Australia (Eds Gilkes, R. J. & Prakongkep, N.), pp. 169–172. Published on DVD. Crawley, UK: International Union of Soil Sciences.Google Scholar
Islam, A. K. M. S., Hossain, M. M., Saleque, M. A., Rabbani, M. A. & Sarker, R. I. (2013). Energy consumption in unpuddled transplanting of wet season rice cultivation in North West region of Bangladesh. Progressive Agriculture 24, 229–237.Google Scholar
Jackson, M. L. (1973). Soil Chemical Analysis. New Delhi: Prentice Hall of India Pvt. Ltd.Google Scholar
Jahiruddin, M. & Satter, M. A. (2010). Agricultural Research Priority: Vision-2030 and Beyond, Sub-Sector: Land and Soil Resource Management. Final Report. Dhaka, Bangladesh: BARC.Google Scholar
Jenkinson, D. S. & Powlson, D. S. (1976). The effects of biocidal treatments on metabolism in soil. A method for measuring soil biomass. Soil Biology and Biochemistry 8, 209–213.Google Scholar
Karim, Z., Rahman, S. M., Ali, M. I. & Karim, A. J. M. S. (1988). Soil Bulk Density: A Manual for Determination of Soil Physical Parameters. Dhaka, Bangladesh: Soils and Irrigation Division, BARC.Google Scholar
Khan, M. S., Rahman, M. M., Begum, R. A., Alam, M. K., Mondol, A. T. M. A. I., Islam, M. S. & Salahin, N. (2008). Research Experiences with Problem Soils of Bangladesh. Joydebpur, Gazipur, Bangladesh: BARI, Soil Science Division.Google Scholar
Khurshid, K., Iqbal, M., Arif, M. S. & Nawaz, A. (2006). Effect of tillage and mulch on soil physical properties and growth of maize. International Journal of Agriculture and Biology 8, 593–596.Google Scholar
Kropff, M. J., Williams, R. L., Horie, T., Angus, J. F., Singh, U., Centeno, H. G. & Cassman, K. G. (1994). Predicting yield potential of rice in different environments. In Proceedings of the Conference. Temperate Rice–Achievements and Potential, Vol. 2 (Eds Humphreys, E., Murray, E. A., Clampett, W. S. & Lewin, L. G.), pp. 657–663. Yanco, NSW: NSW Agriculture.Google Scholar
Kulakova, H. N., Suturin, A. N., Antonenko, A. M., Boik, S. M. & Paradina, L. F. (1996). Organo-mineral composts from the wastes of the pulp and paper industry and their effect on soil fertility. Eurasian Soil Science 29, 836–840.Google Scholar
Kumar, V., Saharawat, Y. S., Gathala, M. K., Jat, A. S., Singh, S. K., Chaudhary, N. & Jat, M. L. (2013). Effect of different tillage and seeding methods on energy use efficiency and productivity of wheat in the Indo-–Gangetic Plains. Field Crops Research 142, 1–8.CrossRefGoogle Scholar
Lal, R. (1993). Tillage effects on soil degradation, soil resilience, soil quality, and sustainability. Soil and Tillage Research 27, 1–8.Google Scholar
Lal, R. & Stewart, B. A. (2013). Principles of Sustainable Soil Management in Agroecosystems. Boca Raton, FL: CRC Press.CrossRefGoogle Scholar
Li, W., Liu, X., Qiao, H., Sun, J. & Duan, D. (2004). Two phase tillage: quick method for crop production in saline soils. Agrifood Research Report 68, 66–72.Google Scholar
Mandal, K. G., Misra, A. K., Hati, K. M., Bandyopadhyay, K. K., Ghosh, P. K. & Mohanty, M. (2004). Rice residue: management options and effects on soil properties and crop productivity. Food, Agriculture and Environment 2, 224–231.Google Scholar
Meenakshi, G., Amarjit, S. B., Sharma, B. C., Kachroo, D. & Bharat, R. (2007). Productivity, nutrient uptake and economics of wheat (Triticum aestivum) under various tillage and fertilizer management practices. Indian Journal of Agronomy 52, 127–130.Google Scholar
Mohammad, W., Shah, Z., Shah, S. M. & Iqbal, M. M. (2003). Rotational benefits of legumes to subsequent rain-fed wheat in a low n soil. Pakistan Journal of Soil Science 22, 19–27.Google Scholar
Mohammad, W., Shah, Z., Shah, S. M. & Shehzadi, S. (2008). Response of irrigated and N-fertilized wheat to legume–cereal and cereal–cereal rotation. Soil and Environment 27, 148–154.Google Scholar
Moslehuddin, A. Z. M., Hussain, M. S., Saheed, S. M. & Egashira, K. (1999). Clay mineral distribution in correspondence with agro–ecological regions of Bangladesh soils. Clay Science 11, 83–94.Google Scholar
Munoz, A., Lopez-Pineiro, A. & Ramirez, M. (2007). Soil quality attributes of conservation management regimes in a semi-arid region of south western Spain. Soil and Tillage Research 95, 155–265.Google Scholar
Oliveira, M. T. & Merwin, I. A. (2001). Soil physical conditions in a New York orchard after eight years under different groundcover management systems. Plant and Soil 234, 233–237.Google Scholar
Parker, M. M. & Lear, D. H. V. (1996). Soil heterogeneity and Root distribution of mature loblolly pine stands in piedmont soil. Soil Science Society of America Journal 60, 19–20.CrossRefGoogle Scholar
Piovanelli, C., Gamba, C., Brandi, G., Simonini, S. & Batistoni, E. (2006). Tillage choices affect biochemical properties in the soil profile. Soil and Tillage Research 90, 84–92.Google Scholar
Rahman, M. M. & Ranamukhaarachchi, S. L. (2003). Fertility status and possible environmental consequences of Tista Floodplain soils in Bangladesh. Thammasat International Journal of Science & Technology 8, 11–19.Google Scholar
Rahman, S. M. & Islam, A. (1998). Water transmission properties of two Bangladesh soils as affected by tillage depths. Soil water flux and hydraulic conductivity. AMA Research 10, 307–312.Google Scholar
Rahman, M. M., Islam, A. M., Azirun, S. M. & Boyce, A. N. (2014). Tropical legume crop rotation and nitrogen fertilizer effects on agronomic and nitrogen efficiency of rice. The Scientific World Journal Article 2014, Article ID 490841. DOI: http://dx.doi.org/10.1155/2014/490841 Google Scholar
Ray, D. K., Ramankutty, N., Mueller, N. D., West, P. C. & Foley, J. A. (2012). Recent patterns of crop yield growth and stagnation. Nature Communications 3, Article number 1293. DOI: 10.1038/ncomms2296 Google Scholar
Ryan, J., Harris, H. & Matar, A. (1992). Soil and plant nitrogen studies in the two-course wheat rotation. In ICARDA, Farm Resource Management Program, Annual Report 1992, pp. 85–91. Aleppo, Syria: ICARDA.Google Scholar
Sainju, U. M., Senwo, Z. N., Nyakatawa, E. Z., Tazisong, I. A. & Reddy, K. C. (2008). Tillage, cropping systems, and nitrogen fertilizer source effects on soil carbon sequestration and fractions. Journal of Environmental Quality 37, 880–888.CrossRefGoogle ScholarPubMed
Salahin, N., Alam, M. K., Islam, M. M., Naher, L. & Majid, N. M. (2013). Effects of green manure crops and tillage practice on maize and rice yields and soil properties. Australian Journal Crop Science 7, 1901–1911.Google Scholar
Saunders, D. A. & Hettel, G. P. (1994). Wheat in Heat-stressed Environments: Irrigated, Dry Areas and Rice–Wheat Farming Systems. Mexico DF: CIMMYT.Google Scholar
Schuurman, A. & Goedewaagen, B. (1971). Methods for the Examination of Root Systems and Roots. Wageningen, The Netherlands: Pudoc.Google Scholar
Shah, Z., Ahmad, S. R. & Rahman, H. (2011). Sustaining rice–wheat system through management of legumes: I. Effect of green manure legumes on rice yields and soil quality. Pakistan Journal Botany 43, 1569–1574.Google Scholar
Singh, A. & Kaur, J. (2012). Impact of conservation tillage on soil properties in rice wheat cropping system. Agricultural Science Research Journal 2, 30–41.Google Scholar
Singh, P. K. & Singh, Y. (1996). Effect of reduced tillage on soil properties, root growth and grain yield in rice–wheat system. Indian Journal Agricultural Research 30, 179–185.Google Scholar
Singh, A., Phogat, V. K., Dahiya, R. & Batra, S. D. (2014). Impact of long-term zero till wheat on soil physical properties and wheat productivity under rice–wheat cropping system. Soil and Tillage Research 140, 98–105.Google Scholar
So, H. B., Grabski, A. & Desborough, P. (2009). The impact of 14 years of conventional and no–till cultivation on the physical properties and crop yields of a loam soil at Grafton NSW, Australia. Soil and Tillage Research 104, 180–184.Google Scholar
Soil Survey Staff (1951). Soil Survey Manual. U.S. Department of Agriculture Handbook no. 18. Washington, DC: USDA.Google Scholar
Son, D. & Lee, Y. H. (2011). Effects of no–tillage rice cover crop cropping systems on rice root growth. Korean Journal of Soil Science and Fertility 44, 375–379. (In Korean)Google Scholar
Sonnleitner, R., Lorbeer, E. & Schinner, F. (2003). Effects of straw, vegetable oil and whey on physical and microbiological properties of a chernozem. Applied Soil Ecology 22, 195–204.Google Scholar
SRDI (2005). Bhumi and Mrittika Sampad Bhavohar Nirdeshika. Gazipur Sadar Upazila, Gazipur Zila: Bangladesh: Soil Resource Development Institute. Ministry of Agriculture, Government of the People's Republic of Bangladesh (in Bangla).Google Scholar
Steel, R. G. D. & Torrie, J. H. (1980). Principles and Procedures of Statistics. A Biometrical Approach, 2nd edn. New York: McGraw-Hill.Google Scholar
Sultani, M. I., Gill, M. A., Anwar, M. M. & Athar, M. (2007). Evaluation of soil physical properties as influenced by various green manuring legumes and phosphorus fertilization under rain fed conditions. International Journal of Environment Science and Technology 4, 109–118.Google Scholar
Sur, H. S., Sidhu, A. S., Singh, R., Aggarwal, G. C. & Sandhu, K. S. (1993). Long–term effect of green manuring on soils physical properties and production potential in green manure–maize–wheat sequence. Annals of Agricultural Research 14, 125–131.Google Scholar
Tabaglio, V., Gavazzi, C. & Menta, C. (2009). Physico-chemical indicators and microarthropod communities as influenced by no-till, conventional tillage and nitrogen fertilisation after four years of continuous maize. Soil and Tillage Research 10, 135–142.Google Scholar
Trostle, R. (2008). Global Agricultural Supply and Demand: Factors Contributing to the Recent Increase in Food Commodity Prices. Washington, DC: USDA.Google Scholar
Unger, P. W. (1992). Infiltration of simulated rainfall: tillage system and crop residue effects. Soil Science Society of America Journal 56, 283–289.Google Scholar
Unger, P. W. & Jones, O. R. (1998). Long–term tillage and cropping systems affect bulk density and penetration resistance of soil cropped to dry land wheat and grain sorghum. Soil and Tillage Research 45, 39–57.Google Scholar
Varsa, E. C., Chong, S. K., Abolagi, J. O., Farquhar, A. J. & Olsen, F. J. (1998). Effect of deep tillage on soil physical characteristics and corn root growth and productions. Soil and Tillage Research 61, 816–817.Google Scholar
Videnovic, Z., Simic, M., Srdic, J. & Dumanovic, Z. (2011). Long term effects of different soil tillage systems on maize (Zea mays L.) yields. Plant, Soil and Environment 57, 186–192.Google Scholar
Voroney, R. P. & Paul, E. A. (1984). Determination of Kc and Kn in situ for calibration of the chloroform–incubation method. Soil Biology and Biochemistry 16, 9–14.Google Scholar
Wall, P. (1998). Pequeñas Propiedades y la Cero Labranza. Una visión general de avances y limitaciones. In Curso Internacional sobre Cero Labranza en Pequeñas Propiedades; Chillan, Chile; 4–8 May 1998, pp. 1–16. Chillan, Chile: INIA/PROCISUR.Google Scholar
Weatherbase (2013). Weatherbase: Historical Weather for Dhaka, Bangladesh. Great Falls, VA: CantyMedia. Available from: http://www.weatherbase.com/weather/weather.php3?s=32914&cityname=Dhaka-Bangladesh (verified 2 March 2016).Google Scholar
Wilkins, D. E., Siemens, M. C. & Albrecht, S. L. (2002). Changes in soil physical characteristics during transition from intensive tillage to direct seeding. Transactions of the ASAE 45, 877–880.Google Scholar
Wuest, S. B., Williams, J. D. & Gollany, H. T. (2006). Tillage and perennial grass effects on ponded infiltration for seven semi–arid loess soils. Journal of Soil and Water Conservation 61, 218–223.Google Scholar
Yadvinder-Singh, , Khind, C. S. & Bijay-Singh, (1991). Efficient management of leguminous green manures in wetland rice. Advances in Agronomy 45, 135–189.Google Scholar
Zhu, L., Hu, N., Yang, M., Zhan, X. & Zhang, Z. (2014). Effects of different tillage and straw return on soil organic carbon in a rice–wheat rotation system. PLoS ONE 9, e88900. doi:10.1371/journal.pone.0088900.Google Scholar