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Comparison of methods for predicting nitrogen uptake and grain yield by rice.

机译：水稻预测氮素吸收和谷物产量的方法比较。

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The lack of a soil test that can predict mineralizable N availability to flooded rice (Oryza sativa L.) throughout the growing season has lead researchers to monitor the plant N status with plant measurements that estimate plant N uptake. Studies comparing these indicators of plant N status for rice have not been reported yet. Therefore, the objective of this study was to investigate the accuracy of N concentration and chlorophyll meter readings of the most recently matured leaf (Y-leaf) and plant area in predicting total N accumulation during the vegetative stage and grain yield. Five preflood N rates (0 to 134.4 kg ha

机译：缺乏能够预测整个生长季节中淹水水稻（Oryza sativa L.）矿化氮有效性的土壤测试，导致研究人员通过估算植物N吸收量的植物测量值来监测植物N的状况。尚无有关比较水稻植物氮素状态指标的研究。因此，本研究的目的是调查最近成熟的叶片（Y叶片）和植物区域的氮浓度和叶绿素计读数在预测营养期的总氮积累和籽粒产量方面的准确性。五个前驱N量（0至134.4 kg公顷

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作者
Ntamatungiro, Sixte.;
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作者单位

University of Arkansas.;

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授予单位 University of Arkansas.;
学科 Agriculture Agronomy.;Biology Plant Physiology.
学位 Ph.D.
年度 1996
页码 173 p.
总页数 173
原文格式 PDF
正文语种 eng
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Comparison of methods for predicting nitrogen uptake and grain yield by rice.

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