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首页> 外文期刊>International journal of soil science >Impact of Sprinkler Irrigation Uniformity on tlie Variability of Sugar Beet Leaf N Content
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Impact of Sprinkler Irrigation Uniformity on tlie Variability of Sugar Beet Leaf N Content

机译：喷灌均匀度对甜菜叶片含氮量变化的影响

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The main objective of this study was to determine spatial variability of sugar beet leaf N content affected by distribution pattern of urea fertigation. This study was conducted in Fesaran village, Isfahan Province of Iran and limited to sugar beet (monogerm seed) which is the fourth commercial crop in Isfahan Province. Urea applied through sprinkler irrigation (solid set system-removable sprinklers). Soil and sugar beet leaves samples were obtained to specify soil total N as well leaf N content. Results of soil and crop analysis were used to produce spatial variability maps through GS and ArcGIS 9.2 software. Semivariogram results were used to perform an ordinary kriging to obtain interpolated values of selected variables from the sample points through and across the study area. It was found that there was a low variability of soil total N 4 days after fertigation as well as low variability in sugar beet leaf N content which indicates that the soil has a homogenous total N through and across the field and urea fertigated uniformly on sugar beet leaves. The results of urea fertigation through sprinklers indicate uniform fertigation makes low spatial variability of sugar beet leaf N content.
机译：本研究的主要目的是确定受尿素施肥分布模式影响的甜菜叶氮含量的空间变异性。这项研究是在伊朗伊斯法罕省的Fesaran村进行的，仅限于甜菜（单子种子），这是伊斯法罕省的第四种商业作物。通过洒水灌溉（固定系统可拆卸洒水器）施用尿素。获得土壤和甜菜叶样品以指定土壤总氮以及叶氮含量。通过GS和ArcGIS 9.2软件，将土壤和农作物的分析结果用于生成空间变异图。半变异函数结果用于执行普通克里金法，以从整个研究区域以及整个研究区域的样本点中获取选定变量的内插值。研究发现，施肥后4天土壤总氮的变异性较低，甜菜叶氮含量的变异性较低，这表明整个田间和整个田地土壤均具有均匀的总氮，而在甜菜上土壤均施肥了尿素树叶。通过喷洒器施肥的尿素结果表明，均匀施肥使甜菜叶氮含量的空间变异性较低。

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