| Cite this article: | 陈盛,黄达,张力,等.秸秆还田对土壤理化性质及水肥状况影响的研究进展[J].灌溉排水学报,0,():-. |
| CHEN Sheng,HUANG Da,zhang Li,et al.秸秆还田对土壤理化性质及水肥状况影响的研究进展[J].灌溉排水学报,0,():-. |
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| Research progress on effects of straw mulching on soil physicochemical properties and soil water and fertilizer status:A review |
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CHEN Sheng1, HUANG Da1, zhang Li2, GUO Xiang-ping3, ZHANG Shuxuan3, CAO Xinchun3
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1.Hohai university;2.Yancheng Agricultural Resources Development Planning, Design and Evaluation Center;3.Hohai University
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| Abstract: |
| Crop straw is an important photosynthetic product and the most important by-product of crops.It is rich in nitrogen, phosphorus, potassium and other elements, and is a very valuable biomass resource in agricultural ecosystem.Straw mulching is the most important way of straw resource utilization, which has significant effects on soil improvement, water conservation and salt control, fertilizer cultivation and yield increase.In this paper, the research progress on the effects of straw mulching on soil physical and chemical properties, water and salt transport, soil fertility and crop yield, negative effects and control measures in recent ten years was systematically summarized, and the influence law and action mechanism were explored to explore the applicability of different straw mulching treatments.The research situation of improving soil physical and chemical properties by straw mulching in combination with different tillage methods, additives, pretreatment and comminution degree was systematically summarized, and the mechanism of straw improving soil physical and chemical properties was summarized.The effects of straw mulching amount, buried depth, length and returning way on regulating water and salt migration were compared and analyzed, and the mechanism of straw retaining water and controlling salt was explored.The research results of straw mulching to the field to improve soil fertility and promote crop yield wre summarized, and some reasonable suggestions were put forward, such as applying nitrogen fertilizer, accelerating straw decomposition and paying attention to initial soil water and fertilizer conditions.The main problems and prevention measures of straw mulching to fields were introduced.In the last part, based on the previous studies, some points for attention in the practical application of straw mulching were put forward, and the potential research directions in the future were prospected.It can provide valuable research, application and decision-making reference for straw resource utilization, saline soil improvement and agricultural efficient production. |
| Key words: Straw mulching; soil aggregate;water and salt transport; soil fertility;soil improvement |
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