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首页> 外文学位 >The effects of soil moisture, field-scale toposequential position, and slope on yields in irrigated upland rice fields in Flores, Comayagua, Honduras.
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The effects of soil moisture, field-scale toposequential position, and slope on yields in irrigated upland rice fields in Flores, Comayagua, Honduras.

机译：洪都拉斯弗洛雷斯，弗洛雷斯的旱地稻田土壤水分，田间尺度的惯常位置和坡度对产量的影响。

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摘要

Rice (Oryza sativa L.) is an important cash crop in Honduras because of the rice lobby's size, willingness to protest, and ability to negotiate favorable price guarantees on a year-to-year basis. Despite the availability of inexpensive irrigation in the study area in Flores, La Villa de San Antonio, Comayagua, the rice farmers do not cultivate the crop using prescribed methods such as land leveling, puddling, and water conservation structures. Soil moisture (Volumetric Water Content) was measured using a soil moisture probe after the termination of the first irrigation within the tillering/vegetative, panicle emergence/flowering, post-flowering/pre-maturation and maturation stages. Yield data was obtained by harvesting on 1 m 2 plots in each soil moisture testing site. Data was analyzed to find the influence of toposequential position along transects, slope, soil moisture, and farmers on yields. The results showed that toposequential position was more important than slope and soil moisture on yields. Soil moisture was not a significant predictor of rice yields. Irrigation politics, precipitation, and land tenure were proposed as the major explanatory variables for this result.
机译：稻米（Oryza sativa L.）是洪都拉斯重要的经济作物，因为稻米游说团体的规模，抗议的意愿以及每年谈判优惠价格保证的能力。尽管在科马亚瓜的圣安东尼奥市La Villa de San Antonio的研究区可以进行廉价的灌溉，但稻农没有使用规定的方法（例如土地平整，水坑和水保护结构）来种植农作物。在分irrigation /营养，穗出苗/开花，开花后/成熟前和成熟阶段的第一次灌溉结束后，使用土壤湿度探针测量土壤湿度（体积含水量）。通过在每个土壤湿度测试地点的1 m 2地块上收获获得产量数据。分析数据以发现沿样带，坡度，土壤湿度和农民的惯常位置对单产的影响。结果表明，相对于坡度和土壤水分，常规位置比单产更重要。土壤湿度不是水稻产量的重要指标。灌溉政治，降水和土地使用权被提出作为该结果的主要解释变量。

著录项

  • 作者

    Earnshaw, Kyle M.;

  • 作者单位

    Michigan Technological University.;

  • 授予单位 Michigan Technological University.;
  • 学科 Agriculture Agronomy.
  • 学位 M.F.
  • 年度 2011
  • 页码 115 p.
  • 总页数 115
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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