TY  - GEN
T1  - Methods of leaf sampling in teak (tectona grandis) for nutrient analysis
A1  - K. Sudhakara
LA  - English
YR  - 2016
UL  - http://discoverylib.upm.edu.my/discovery/Record/oai:http:--agris.upm.edu.my:0-12047
AB  - A study was conducted in
10-y-old teak plantations of Nilambur, Kerala, India, to standardise the canopy
height, time of sampling, leaf rank and diameter class of trees from which to collect
leaf samples for the determination of N, P and K concentrations. Seasonal variation
in the foliar N, P and K concentrations was also determined for a period of thirteen
months starting from August 1993 to August 1994. Since mean nutrient concentration
was high and varied little among the samples, leaves obtained from the
bottom position of the crown during the time interval 0900 h to 1100 h were taken
as the standard. Similarly, the second leaf rank from trees belonging to the diameter
class (16.75-20 cm) were found to be ideal for sampling. Foliar nutrient concentrations
were higher from June to September, which received high rainfall and were low
during the drier months of January to Apri
KW  - Teak
KW  - Tectona grandis
KW  - Timber trees
KW  - Nutrient elements
KW  - Fertilisers
KW  - Acacia mangium
ER  -