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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Effects of agronomic practices on the physico-chemical properties ofsoil waters in rice culture
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Effects of agronomic practices on the physico-chemical properties ofsoil waters in rice culture

机译：农艺措施对水稻培养土壤水理化特性的影响

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摘要

Lowland rice cultivation under hydromorphic conditions is a very dynamic system due to continuous rhizospheric interactions and these interactions are largely influenced by anthropic interventions. Understanding of continuous biogeochemical changes and the effects of environmentally friendly residue management practices on this system is crucial for the sustainability of rice culture. Two rice-cultivated plots with different residue management practices—one with buried residues and the other with burnt residues—were studied by in situ monitoring of the soil solution to understand the quick changes in the dynamic medium of rice culture. In this study, 2 multiparametric probes, each consisting of measurement cells and internal memory, were used to determine automatically pH, Eh, temperature, and electrical conductivity (EC) of soil solution every hour throughout the entire rice growing period. The results showed that biogeochemical reactions are largely influenced by irrigation and fertilization practices. Incorporation of rice residues resulted in more reductive conditions and higher temperatures as compared to burning of rice residues. Fourier and covariance analyses showed that there existed a period of 24 h for EC, pH, and temperature while there was no period for redox potentials, which suggested the existence of daily variations in rice culture possibly related to solar cycles.
机译：由于连续的根际相互作用，水耕条件下的低地水稻种植是一个非常动态的系统，这些相互作用在很大程度上受到人类干预的影响。了解连续的生物地球化学变化以及环境残留管理实践对该系统的影响对于水稻文化的可持续性至关重要。通过对土壤溶液进行原位监测，研究了两个具有不同残留管理实践的水稻种植区（一个带有埋藏残留物，另一个带有燃烧残留物），以了解水稻栽培动态培养基的快速变化。在这项研究中，使用了两个多参数探针，每个探针都由测量单元和内部存储器组成，用于在整个水稻生长期中每小时自动测定土壤溶液的pH值，Eh，温度和电导率（EC）。结果表明，生物地球化学反应在很大程度上受到灌溉和施肥方式的影响。与燃烧稻米残留物相比，稻米残留物的引入导致了更多的还原条件和更高的温度。傅里叶和协方差分析表明，EC，pH和温度存在24小时，而氧化还原电位没有周期，这表明水稻文化中存在每日变化，可能与太阳周期有关。

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