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农学学报

农学学报 ›› 2012, Vol. 2 ›› Issue (2): 31-34.

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

湘南3种典型红壤生土长期施肥对块根作物产量影响

高菊生 曹卫东 黄晶 董春华   

  • 收稿日期:2011-10-08 修回日期:2011-11-03 出版日期:2012-02-20 发布日期:2012-02-20
  • 基金资助:

    国家农业公益性行业科研专项资助项目

Influence of Long Term Fertilization on Crops Output of Root Crops (Sweet Potato) in Three Typical Parent Material Soil in South Hunan

  • Received:2011-10-08 Revised:2011-11-03 Online:2012-02-20 Published:2012-02-20

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摘要：

为了全面系统地研究土壤熟化这一复杂的过程，寻求适宜的熟化方式，为开发利用红壤丘陵区的各种荒地资源、生产示范、科学规划提供依据，以长期定位试验为基本材料，采用田间试验方法，从1982年开始，研究了湘南3种典型红壤生土长期施肥对块根作物——红薯产量的影响。结果表明，3种母质红薯以紫色土上产量最高；紫色土红薯以处理4、处理3产量最高；3种母质红薯块根产量都以处理1最差。紫色土红薯块根产量依次为：处理4＞处理3＞处理6＞处理5＞处理2＞处理1；花岗岩红薯产量依次为：处理6＞处理5＞处理4＞处理3＞处理2＞处理1；四纪红土红薯产量依次为：处理6＞处理4＞处理3＞处理5＞处理2＞处理1；花岗岩、四纪红土处理3和处理4的小区中间80%部分没有产量，只有靠小区水泥梗边缘有红薯；3种母质的红薯块根产量都以地上部作物秸秆还田的处理好于不还田处理。

关键词: 佛得角海岸, 佛得角海岸, 单位捕捞努力量渔获量, 中心渔场, 影响因子, 时空变化

Abstract:

The influence of 28 years fertilization into soil on crops outputs of root crops (sweet potato) was studied in three typical parent material soils in South Hunan under long-term location test. The results showed that: Among the three typical parent material soils, the yield of sweet potato planted in purple soil was the best (the highest annual output), and NPK treatment was the best in purple soil (the highest annual output). With planting sweet potatoes in the three types of parent material soils, CK treatment was the worst. The root yield (underground) of sweet potato planted in purple soils was in sequence of NPK > OM > CK, while the root yield (underground) of sweet potato planted in quatenary red soil or granitization red soil was in sequence of OM > NPK > CK. Among the NPK treatment in quaternary red soil and granitization red soil, 80% of that had no output, only the region near the edge of district cement stalk could find sweet potato grow. Among the root yield (underground) of sweet potatoes planted in three parent material soils (6 treatments in each parent material), the treatment of upground crop straw returning to field was better than the treatment of removing the upground crop straw away.

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