Nitrogen nutrition of ginger (Zingiber officinale) II. Establishment of a leaf analysis test

Lee M.T., Edwards D.G. and Asher C.J. (1981) Nitrogen nutrition of ginger (Zingiber officinale) II. Establishment of a leaf analysis test. Field Crops Research, 4 C: 69-81. doi:10.1016/0378-4290(81)90055-1


Author Lee M.T.
Edwards D.G.
Asher C.J.
Title Nitrogen nutrition of ginger (Zingiber officinale) II. Establishment of a leaf analysis test
Journal name Field Crops Research   Check publisher's open access policy
ISSN 0378-4290
Publication date 1981-01-01
Sub-type Article (original research)
DOI 10.1016/0378-4290(81)90055-1
Volume 4
Issue C
Start page 69
End page 81
Total pages 13
Subject 1102 Cardiovascular Medicine and Haematology
1110 Nursing
Abstract Seasonal trends in the concentration of nitrogen in various plant parts were followed in field grown ginger at five levels of nitrogen supply. Critical nitrogen concentrations corresponding with 90% of maximum rhizome yield at early or late harvest were established for many different plant parts. In all plant parts, critical nitrogen concentrations decreased linearly with time. Problems of leaf sampling in the field are discussed and it is concluded that the third leaf from the top of the plant represents the most practical index tissue. Depending on crop variability, the data suggest that a sampling intensity of from one leaf to every 20 m of bed (approximately 300 leaves/ha) to one leaf every 6 m of bed (approximately 1000 leaves/ha) will be required for precise estimation of crop nitrogen status. Leaf sampling correctly predicted on 11 out of 12 ginger farms whether or not commercial crops were adequately supplied with nitrogen during the latter part of the growing season.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 16 Aug 2016, 11:48:30 EST by System User