Nutrient status of Populus deltoides and Terminalia arjuna raised on sodic land

Srivastava N., . and Singh B., . and Behl H. M., . Nutrient status of Populus deltoides and Terminalia arjuna raised on sodic land. pp. 199-205. ISSN 0128-1283

New forest resources are being created on wastelands to increase the forest cover as well as to fulfil the needs of the growing Indian population. Such an attempt was made on a partially reclaimed sodic soil at Lucknow in north India using two potential species of diverse nature and habitat. In this study the fast growing exotic Populus deltoides and the slow growing indigenous Terminalia arjuna were examined for their nutrient regimes seasonal variations and degree of nutrient retrans1ocation during senescence. Leaf and twig samp1es of each species collected from May till December from 25 trees having diameters at breast height of 10 to 12cm. were ana1ysed and simulated. Populus deltoides showed higher concentrations of N and K particularly in leaf component whereas T. arjuna had relatively high concentrations of Na Fe and Mg. Concentrations of P and Ca were almost similar in both species. P. Ca and Mg in both species showed similar seasonal pattern unlike that of N K Na and Fe. N P K and Fe decreased from spring to winter while Ca Mg and Na increased during the same period. Foliar nutrient contents were always greater than that in twigs in both species. Most of the nutrients recorded highest concentrations in the rainy season which is the period of maximum nutrient stress when extension growth of leaf is completed. In general the nutrient retranslocation during senescence was greater in P. deltoides than in T. arjuna.

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Abstract

New forest resources are being created on wastelands to increase the forest cover as well as to fulfil the needs of the growing Indian population. Such an attempt was made on a partially reclaimed sodic soil at Lucknow in north India using two potential species of diverse nature and habitat. In this study the fast growing exotic Populus deltoides and the slow growing indigenous Terminalia arjuna were examined for their nutrient regimes seasonal variations and degree of nutrient retrans1ocation during senescence. Leaf and twig samp1es of each species collected from May till December from 25 trees having diameters at breast height of 10 to 12cm. were ana1ysed and simulated. Populus deltoides showed higher concentrations of N and K particularly in leaf component whereas T. arjuna had relatively high concentrations of Na Fe and Mg. Concentrations of P and Ca were almost similar in both species. P. Ca and Mg in both species showed similar seasonal pattern unlike that of N K Na and Fe. N P K and Fe decreased from spring to winter while Ca Mg and Na increased during the same period. Foliar nutrient contents were always greater than that in twigs in both species. Most of the nutrients recorded highest concentrations in the rainy season which is the period of maximum nutrient stress when extension growth of leaf is completed. In general the nutrient retranslocation during senescence was greater in P. deltoides than in T. arjuna.

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Item Type:	Article
AGROVOC Term:	Sodic soils
AGROVOC Term:	Nutrient status
AGROVOC Term:	Populus deltoides
AGROVOC Term:	Terminalia arjuna
AGROVOC Term:	Forest cover
AGROVOC Term:	Translocation
AGROVOC Term:	Senescence
AGROVOC Term:	Twigs
AGROVOC Term:	Leaf analysis
AGROVOC Term:	Seasonality
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/22197

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