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Influence of amendments on chemical and biological properties of sodic soils.

机译:改良剂对钠盐土壤化学和生物学特性的影响。

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摘要

Improving productivity of sodic soils has become a concern in North Dakota because of the desire for more land for producing crops. Field and incubation studies were conducted to determine the impacts of different amendments (flue-gas desulfurization gypsum, sugar beet processing by-product lime, and langbeinite) on the chemical and biological properties of two sodic soils. The field study evaluated the amendment effects on the chemical conditions of the soil and the impact on alfalfa yield and quality. Differences were not observed in percent sodium (%Na) in the first 17 months and alfalfa yield was not impacted by the treatments except for the high rate of langbeinite. The incubation study investigated the effects of amendments on both the chemical and biological properties of the soil. Spent lime increased the cumulative respiration but was not impacted by gypsum or langbeinite. Labile carbon (C) was negatively correlated with %Na and electrical conductivity (EC).
机译:在北达科他州,提高钠盐土壤的生产力已成为一个问题,因为它希望拥有更多的土地来种植农作物。进行了田间和孵化研究,以确定不同的改良剂(烟气脱硫石膏,甜菜加工副产物石灰和蓝贝石)对两种苏打土壤的化学和生物学特性的影响。田间研究评估了改良剂对土壤化学条件的影响以及对苜蓿产量和质量的影响。在最初的17个月中,未观察到钠(%Na)的百分比差异,并且苜蓿的产量不受兰贝氏体含量高的影响,而不受处理的影响。孵化研究调查了改良剂对土壤化学和生物学特性的影响。用过的石灰增加了累积的呼吸作用,但不受石膏或兰贝纳石的影响。不稳定碳(C)与%Na和电导率(EC)呈负相关。

著录项

  • 作者

    Breker, Maria Christine.;

  • 作者单位

    North Dakota State University.;

  • 授予单位 North Dakota State University.;
  • 学科 Soil sciences.
  • 学位 M.S.
  • 年度 2016
  • 页码 150 p.
  • 总页数 150
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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