Effect of soil-conservation tillage on leaf area index and photosynthetically active radiation use efficiency in wheat and maize grown on sloped terrain
DOI:
https://doi.org/10.61308/HUYC5202Keywords:
photosynthetically active radiation, leaf area, maize, wheat, anti-erosion technologyAbstract
Cultivating crops on sloped terrains requires the application of soil-conservation technologies to mitigate the negative effects of water erosion on soil resources. Surface runoff leads to soil loss, reduced infiltration, decreased water reserves, nutrient depletion, and organic matter decline. Conventional tillage accelerates erosion processes, whereas the implementation of anti-erosion technologies reduces the adverse impacts of water erosion. This study examines the influence of previous crops and minimum tillage practices within a wheat–maize rotation on sloped lands and their effect on crop development. Parameters such as leaf area index, accumulated biomass, energy equivalent of biomass, and radiation use efficiency were assessed. The results show that radiation use efficiency is higher in treatments with anti-erosion technologies, with the best outcomes observed in maize. Treatments conducted along the slope demonstrated lower radiation assimilation efficiency and biomass accumulation. These findings highlight the importance of optimizing agrotechnical practices and may contribute to the development of sustainable resource management strategies and improved yields with minimal environmental impact.
References
Aleksandrova, P., & Etropolski, Ch. (2004). Bioproductivity and Bioenergetics of a Maize Crop Grown on Leached Chernozem. Journal of Agricultural Science and Forest Science, III(3), 30-35 (Bg).
Ghosh, A. P., Dass, A., Krishnan, P., Kaur, R., & Rana, K. S. (2017). Assessment of photosynthetically active radiation, photosynthetic rate, biomass and yield of two maize varieties under varied planting dates and nitrogen application. Journal of Environmental Biology, 38(4), 683.
Hargreaves, G. H., & Samani, Z. A. (1985). Reference crop evapotranspiration from temperature. Applied engineering in agriculture, 1(2), 96-99.
Holzman, M. E., Carmona, F., Rivas, R., & Niclòs, R. (2018). Early assessment of crop yield from remotely sensed water stress and solar radiation data. ISPRS journal of photogrammetry and remote sensing, 145, 297-308.
Hristov, I., Davidkov, E., Georgiev, D., Angelova, V., Petrov, P., & Tsvetanova, G. (2010). Dry Matter Yield and Energy Productivity of Crops in a Five-Field Crop Rotation Depending on Fertilization. In: 20th Jubilee International Scientific Conference, June 3-4, 2010, Stara Zagora. Agricultural Science. Plant Studies, I, pp. 154-159.
Irmak, S., Kukal, M. S., Mohammed, A. T., & Djaman, K. (2019). Disk-till vs. no-till maize evapotranspiration, microclimate, grain yield, production functions and water productivity. Agricultural Water Management, 216, 177-195.
Kiniry, J. R., Bean, B., Xie, Y., & Chen, P. Y. (2004). Maize yield potential: critical processes and simulation modeling in a high-yielding environment. Agricultural Systems, 82(1), 45-56.
Krumov, V., & Blagoeva, V. (2011). Soil-Protective and Energy Efficiency of Miscanthus × giganteus Grown under Organic Farming Conditions in the Samokov Region, Bulgaria. In: I. Atanasov et al., (Eds.), International Conference “100 Years of Soil Science in Bulgaria” (pp. 554-558). PSSE.
Manolova, S., Stoimenov, G., & Petrova, V. (2014). Energy Characteristics of Maize Fertilized with Biochar. Agricultural Engineering, 2, 26-34 (Bg).
Nikolova, D., Borisova, M., & Dimitrov, I. (2006). Energy Productivity of Field Crop Rotations on Leached Smolnitsa. Plant Science, 43, 250-253 (Bg).
Ruseva, S., Lozanova, L., Nekova, D., Stefanova, V., Dzhodzhov, H., … & Chehlarova-Simeonova, S. (2010). Risk of Soil Erosion in Bulgaria and Recommendations for Soil-Protective Use of Agricultural Land, Part I. Publish SciSet-Eco, Sofia (Bg).
Stoinov, St., & Kercheva, M. (2015). Influence of Phenological, Agronomic, and Soil-Climatic Factors on the Energy Equivalent of Agricultural Crops. Proceedings of the International Conference Dedicated to the International Year of Soils and the 140th Anniversary of the Birth of Nikola Pushkarov “Soil and Agrotechnologies in a Changing World”, May 11–15, 2015, Sofia, Bulgaria.
Stoyanov, P. (2007). Agroecological Potential of Maize Grown on Soils Typical for Its Production under the Conditions of Bulgaria. Doctoral dissertation, Institute of Soil Science “N. Pushkarov”, Sofia.
Suyker, A. E., & Verma, S. B. (2010). Coupling of carbon dioxide and water vapor exchanges of irrigated and rainfed maize–soybean cropping systems and water productivity. Agricultural and Forest Meteorology, 150(4), 553-563.
Wang, J., Wang, E., Yin, H., Feng, L., & Zhao, Y. (2015). Differences between observed and calculated solar radiations and their impact on simulated crop yields. Field Crops Research, 176, 1-10.
Wang, Z., Zhao, X., Wu, P., He, J., Chen, X., Gao, Y., & Cao, X. (2015). Radiation interception and utilization by wheat/maize strip intercropping systems. Agricultural and forest meteorology, 204, 58-66.
Zhang, J., Lü, F., Shao, L., & He, P. (2014). The use of biochar-amended composting to improve the humification and degradation of sewage sludge. Bioresource technology, 168, 252-258.
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