CHEN Ziwei, YING Shanshan, LIU Yinxiu, et al. Effects of Different Fertilizer Types on Nitrogen Loss in Paddy Field[J]. 2021, 35(1): 36-43.
DOI:
CHEN Ziwei, YING Shanshan, LIU Yinxiu, et al. Effects of Different Fertilizer Types on Nitrogen Loss in Paddy Field[J]. 2021, 35(1): 36-43. DOI: 10.13870/j.cnki.stbcxb.2021.01.005.
Effects of Different Fertilizer Types on Nitrogen Loss in Paddy Field
This study applied a field experiment to investigate the effects of different fertilizer types on nitrogen loss in a paddy field. The fertilizer types included control (CK)
conventional formula fertilizer (CT)
partial replacement of organic fertilizers to chemical fertilizers (BS) and carbon-based fertilizer (CB). The results showed that the BS and CB had significant effects on reducing nitrogen runoff loss in the paddy field (p < 0.05) and the total runoff loss of ammonium decreased in the following order: CT (20.08 kg/hm2)
BS (15.53 kg/hm2)
CB (12.68 kg/hm2)
CK (0.63 kg/hm2). The estimated nitrogen leaching loss showed that BS and CB had no significant effects on reducing nitrogen leaching loss from the paddy field. The inorganic nitrogen (ammonium and nitrate) runoff loss under CT
BS and CB accounted for 5.26%~8.31% of fertilizer application
while leaching loss accounted for 0.21%~0.27%
demonstrating that runoff was the main way of inorganic nitrogen loss in the paddy field in this study. The fertilization treatments of CT
BS and CB increased rice yield by 18.3%
28.4%
and 24.9%
respectively (p < 0.05). In summary
the application of carbon-based fertilizer and organic fertilizer could significantly reduce the nitrogen loss in the paddy field.
Burkitt L L. A review of nitrogen losses due to leaching and surface runoff under intensive pasture management in Australia[J].Soil Research,2014,52(7):621-636.
Li Y, Šimůunek J, Zhang Z T, et al. Evaluation of nitrogen balance in a direct-seeded-rice field experiment using Hydrus-1D[J].Agricultural Water Management,2015,148:213-222.
Li W, Chen H, Cao C F, et al. Effects of long-term fertilization on organic carbon and nitrogen dynamics in a vertisol in eastern China[J].Open Journal of Soil Science,2018,8(3):99-117.
Khan M A, Kim K W, Wang M Z, et al. Nutrient-impregnated charcoal:An environmentally friendly slow-release fertilizer[J].The Environmentalist,2008,28:231-235.
刘宁.生物炭的理化性质及其在农业中应用的基础研究[D].沈阳:沈阳农业大学,2014.
Jien S H, Wang C C, Lee C H, et al. Stabilization of organic matter by biochar application in compost-amended soils with contrasting pH values and textures[J].Sustainability,2015,7(10):13317-13333.
Li Y, Šimůunek J, Jing L F, et al.Evaluation of water movement and water losses in a direct-seeded-rice field experiment using Hydrus-1D[J].Agricultural Water Management,2014,142:38-46.
Lee C H, Wang C C, Jien S H, et al. In-situ biochar application conserves nutrients while simultaneously mitigating runoff and erosion of an Fe-oxide-enriched tropical soil[J].Science of the Total Environment,2018,619/620:665-671.
Chowdary V M, Rao N H, Sarma P B S. A coupled soil water and nitrogen balance model for flooded rice fields in India[J].Agriculture, Ecosystems and Environment,2004,103(3):425-441.
Yang R, Tong J X, Hu B X, et al. Simulating water and nitrogen loss from an irrigated paddy field under continuously flooded condition with Hydrus-1D model[J].Environmental Science and Pollution Research,2017,24:15089-15106.
Ji X H, Zhang S X, Lu Y H, et al. Study of dynamics of floodwater nitrogen and regulation of its runoff loss in paddy field-based two-cropping rice with urea and controlled release nitrogen fertilizer application[J].Agricultural Sciences in China,2007,6(2):189-199.