Home|Journals Follow on Twitter| Subscribe to List

Directory for Medical Articles
 

Open Access

Original Article

Fundam Appl Agric. 2016; 1(3): 106-111


Critical leaf S concentration and S requirement of stevia grown in two different soils of Bangladesh

Md Maniruzzaman; Md Akhter Hossain Chowdhury; Tanzin Chowdhury; A B M Masud Hasan.

Abstract
Sulphur is one of the essential nutrients for plant growth, protein and chlorophyll biosynthesis and can be supplemented by inorganic fertilizers like gypsum. To examine the effects of S on the growth, leaf biomass yield, S content and uptake and to estimate minimum S requirement and critical leaf S concentration of stevia, an experiment was conducted in the net house of the Department of Agricultural Chemistry, Bangladesh Agricultural University during March to July 2012 in two different soils of Bangladesh. Six levels of S (0, 10, 20, 30, 50 and 80 kg ha-1 ) were applied. Plant sampling was done at 15, 30, 45 and 60 days after planting (DAP) to measure plant height, number of branches and leaves, dry weight of leaves, leaf area and leaf S concentration. All the studied parameters of stevia plant were significantly affected by different levels of S. The highest values of the parameters except S concentration were obtained from 30 kg S ha-1 and the lowest from S control. Sulphur application increased leaf dry yield at harvest by 54 to 573% in acid soil and 75 to 545% in non-calcareous soil, respectively over control. The growth of the plant was rapid at the later stages (30 to 60 DAP). Leaf S content was directly proportional with the increased levels of S. Critical S concentration to achieve 80% of the maximum production of stevia leaf was estimated to be ca 0.125 and 0.137% in the leaves of stevia plants grown in acid and non-calcareous soils, respectively. The minimum amount of S for maximum leaf biomass production in the plants grown in acid and non-calcareous soils was also estimated to be ca 40 and 45 kg ha-1 , respectively. The overall results suggest that farmers can be advised to apply S @ 40 kg ha-1 in acid soil for getting 80% production of stevia leaf under the agroclimatic conditions of Bangladesh Agricultural University.

Key words: Stevia;Leaf biomass yield;S requirement;Critical S concentration



Share this Article


Advertisement
Progress in Orthopedic Science

SUBMIT YOUR ARTICLE NOW


ScopeMed Home
Follow ScopeMed on Twitter
BiblioCAM
Article Tools
eJPort Journal Hosting
About ScopeMed
License Information
Terms & Conditions
Privacy Policy
Suggest a Journal
Publisher Login
Contact Us

The articles in Scopemed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
ScopeMed is a Database Service for Scientific Publications. Copyright ScopeMed Information Services.
Scopemed Buttons