Indian Journal of Plant Physiology

  • Year: 1988
  • Volume: 31o
  • Issue: 2

Mobilization and recycling of nitrogen contents in Shorea robusta Follage

  • Author:
  • T.C. Pokhriyal
  • Total Page Count: 5
  • DOI:
  • Page Number: 158 to 162

Plant Physiology Branch Forest Research Institute & Colleges, Dehra Dun-248006

Abstract

Mobilization and recycling of nitrogen from the Shorea robusta foliage were studied. The maximum quantity of N mobilized (38-4 kg/h) and recycled (15.18 kg/h) through litter fall from the canopy was observed in the month of April. Maximum and minimum canopy N was noticed in the month of January (90 kg/h) and April (35.95 kg/h), respectively. On the seasonal average basis, maximum N mobilized and recycled from canopy was 59 and 92 per cent in summer season followed by 34 and 5 per cent in rainy and minimum 7 and 3 per cent in winter respectively. However, a reverse trend was observed in case of canopy N i.e., maximum in winter and minimum in summer seasons.