Journal of Food, Agriculture and Environment
Vol 10,
Issue 3&4,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Diagnosing of the nutritional status of ‘Newhall’ navel orange trees with the method of modified diagnosis and recommendation integrated system (M-DRIS)
Author(s):
Hong Huang 1,
Chengxiao Hu 1*, Qiling Tan 1, Xiaohu Zhao 1, Xuecheng Sun 1, Xiaoming Hu 2, Liangzhi Peng 3, Changpin Chun 3Recieved Date: 2012-06-24, Accepted Date: 2012-09-30
Abstract:Thirty-nine leaf samples of ‘Newhall’ navel orange were collected from 39 citrus orchards in South Jiangxi Province of China. The method of modified diagnosis and recommendation integrated system (M-DRIS) was performed to evaluate the nutritional status of ‘Newhall’ navel orange trees in order to find out the main limiting nutrient factors. The relationship between M-DRIS indices and corresponding nutrient concentrations in ‘Newhall’ navel orange leaf was established to identify the optimum nutrient concentrations in the leaf. The result indicated that the optimum nutrient concentrations in ‘Newhall’ navel orange leaves were N 31.53 g kg-1, P 1.49 g kg-1, K 20.23 g kg-1, Ca 32.75 g kg-1, Fe 113.65 mg kg-1, Mn 61.03 mg kg-1, Cu 7.69 mg kg-1 and B 89.65 mg kg-1. The main limiting nutrient factors were the excess of leaf Fe and Mn and the deficiency of leaf Mg and Zn.
Keywords:Newhall,
nutritional status, limiting nutrient factor, M-DRIS and cluster analysisJournal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Agriculture
Pages: 379-383
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