This study presents the results of conservation, analysis of materials and manufacturing in relation to waterlogged Lacq......

以淹水种植水稻为处理，以淹水不种水稻为对照，探讨植稻对模拟土柱（40cm埋深处）渗漏液NO3^--N、NH4^＋-N淋出数量及在土壤中垂直分布的情......

由于硝态氮(NO3--N)对于水稻的生长起到非常重要的作用,所以发生在水稻根际的硝化作用越来越受到人们的重视。试验采用根盒(3室)—......

为了探明淹水植稻条件下磷元素在土层中的垂直移动、渗漏情况，设置了模拟土柱培养试验。试验以淹水种植水稻为处理，以淹水不种水稻为......

Sequential extraction is used effectively to determine the chemical forms of heavy metals. Since few studies have been c......

In summer maize growth period,the water supply and demand ratio is regarded as the evaluation index of drought and water......

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A geographic information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present a......