通过恒河三角洲保护性农业实现沿海盐碱化管理和种植系统集约化

IF 2.9 Q2 SOIL SCIENCE Soil Systems Pub Date : 2024-07-14 DOI:10.3390/soilsystems8030080
S. K. Sarangi, M. Mainuddin, S. Raut, U. Mandal, K. K. Mahanta
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引用次数: 0

摘要

土壤盐碱化是恒河三角洲沿海地区种植系统集约化的主要制约因素。由于地下咸水的毛细作用,盐分在土壤表层和作物根区积聚,阻碍了作物的生长和发育,导致作物死亡和低产。我们用三年时间(2020-2021 年至 2022-2023 年)研究了保护性农业措施(零耕地种植、作物秸秆回收利用和轮作)对主要土壤特性(土壤盐分和有机碳状况)、作物表现(产量和经济效益)以及水足迹的影响。与耕作密集型传统耕作法相比,保护性农业耕作法能明显降低土壤盐分,增加土壤有机碳,减少水足迹,提高耕作系统的收益。在传统农业中,单作水稻比双作和三作系统更有利可图。
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Coastal Salinity Management and Cropping System Intensification through Conservation Agriculture in the Ganges Delta
Soil salinity is the major constraint for cropping system intensification in the coastal region of the Ganges Delta. Salts build up on the soil surface, as well as in the crop root zone, due to the capillary rise in underground brackish water, hampering the growth and development of crops and resulting in mortality and low yields. We studied, for three years (2020–2021 to 2022–2023), the effect of conservation agricultural practices (zero tillage planting, crop residue recycling, and crop rotations) on the major soil properties (soil salinity and organic carbon status), crop performance (yield and economics), and water footprint. Conservation agricultural practices significantly reduce soil salinity, build soil organic carbon, reduce water footprint, and increase the profitability of cropping systems compared to tillage-intensive conventional practices. Under conventional agriculture, the sole cropping of rice is more profitable than double and triple cropping systems.
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来源期刊
Soil Systems
Soil Systems Earth and Planetary Sciences-Earth-Surface Processes
CiteScore
5.30
自引率
5.70%
发文量
80
审稿时长
11 weeks
期刊最新文献
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