刘广明, 杨劲松, 吕真真, 余世鹏, 何丽丹. 不同调控措施对轻中度盐碱土壤的改良增产效应[J]. 农业工程学报, 2011, 27(9): 164-169.
    引用本文: 刘广明, 杨劲松, 吕真真, 余世鹏, 何丽丹. 不同调控措施对轻中度盐碱土壤的改良增产效应[J]. 农业工程学报, 2011, 27(9): 164-169.
    Liu Guangming, Yang Jingsong, Lü Zhenzhen, Yu Shipeng, He Lidan. Effects of different adjustment measures on improvement of light-moderate saline soils and crop yield[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2011, 27(9): 164-169.
    Citation: Liu Guangming, Yang Jingsong, Lü Zhenzhen, Yu Shipeng, He Lidan. Effects of different adjustment measures on improvement of light-moderate saline soils and crop yield[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2011, 27(9): 164-169.

    不同调控措施对轻中度盐碱土壤的改良增产效应

    Effects of different adjustment measures on improvement of light-moderate saline soils and crop yield

    • 摘要: 针对黄淮海平原轻中度盐碱障碍土壤,通过连续3a的定位田间试验,进行了不同调控措施对盐碱障碍土壤的改良增产效应试验研究。研究结果表明,在小麦-玉米轮作制度下,秸秆覆盖、土壤结构调理剂、秸秆覆盖结合土壤结构调理剂等调控措施均能够有效降低耕层土壤盐分,增加作物产量和提高经济效益,其中秸秆覆盖结合土壤结构调理剂的增产效应最为显著,秸秆覆盖的增产效应次之。秸秆覆盖和秸秆覆盖结合土壤结构调理剂都能够显著增加耕层土壤有机质含量,较当地常规管理分别提高8.33%和9.27%。秸秆覆盖促进了土壤养分的积累,尤其是土壤全氮,碱解氮和速效钾含量显著增加。综合考虑土壤脱盐、作物增产、调控经济效益和土壤养分变化等复合效应,秸秆覆盖结合土壤结构调理剂为黄淮海平原轻中度盐碱障碍土壤的较佳调控措施,秸秆覆盖为次优措施。

       

      Abstract: Field experiments were carried out for three years to explore effects of different adjustment measures on light-moderate saline soils in North China Plain. The results indicated that in wheat/maize rotation system, straw mulching, structure conditioner, straw mulching binding structure conditioner could reduce topsoil salinity, increase yield and improve economic efficiency. Straw mulching binding structure conditioner showed the optimal effect on increasing yield, and straw mulching showed the suboptimal effect. At the end of this experiment, organic matter content in topsoil by using both of the optimum measures increased by 9.27% or 8.33%, respectively, comparing with local conventional management. Straw mulching promoted the accumulation of soil nutrients, and total N, available N, available K increased significantly under this condition. Considering the comprehensive effect of the soil desalination, crop yield, economic efficiency and soil nutrients, straw mulching binding structure conditioner was the optimal adjustment measure in this study to ameliorate light-moderate saline soils in North China Plain, and straw mulching was suboptimal.

       

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