Using a chlorophyll meter to estimate tea leaf chlorophyll and nitrogen contents
作者： Z.A Liu , J.P Yang , Z.C Yang
DOI: 10.4067/S0718-95162012000200013
关键词:
摘要: A chlorophyll meter can conveniently estimate foliar and nitrogen (N) contents in many species. The objective of this study was to evaluate the utility a inform fertilization rates tea (Camellia sinensis L.) at different places times. Plot-scale (5 x 20 m) experiments with three replications were conducted 2010. Each plot treated 248 kg pure N ha-1 per year as urea. At same time, field-scale (32 ha) experiment, rate, plantation. Tea leaves sampled August November analyzed situ lab. (SPAD) readings greater than November, plot-scale values values. SPAD could content regardless temporal spatial considerations. However, space time must be considered when using leaves.
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