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Effect of Integrated Soil Fertility Management in Rubber Plantation (on Going)

M. Zahirul Alam
Asst. Soil Scientist
Soil Science Division, BFRI, Chittagong

Md. Jahangir Alam
DO
Soil Science Division, BFRI, Chittagong

Md. Motiar Rahman
Asst. Soil Scientist
Soil Science Division, BFRI, Chittagong

Abstract/ Executive Summary:

a). From the analyzed initial soil samples of the experimental site, variations were found in pH (4.5-4.4), OC (1.47-0.86%), N (0.10-0.05%), K (0.12-0.08 meq/100gm), P (5.35-3.0µg/gm) and S (7.10-4.450µg/gm) under three soil depth. b). The average latex yield (cc/tree/day) was found higher in without treatment (114 and 94) followed by NPK (150 urea+100 TSP+100gm MP/tree) fertilizer treatment (108 and 93), 4kg/tree of rubber leaf litter + rubber effluent compost treatment (103 and 86), 4 kg/tree of rubber leaf litter + cowdung compost (103 and 82), 4 kg/tree of rubber leaf litter compost (98 and 79) and 4 kg/tree of rubber leaf litter + PKS fertilizer compost (89 and 79) in the year of 2013-14 and 2012-13 respectively. c). Average girth at breast height (GBH) and height of rubber trees were recorded from different cover crop treated experiments where maximum GBH (11.60 and 9.79 cm) and height (4.13 and 3.63 m) was found in arhar as a inter crop treated in rubber plantation compared to other treatments.

Keywords: Rubber trees, Organic compost, Growth and latex production, Nitrogen fixing crops

Location: Dantmara Rubber Estate, Fatikchari, Chittagong

Start Date: 00-00-2010

End Date: 00-00-2015

Program Area: Crop-Soil-Water Management

Commodity: Soil fertility

Objectives:

To utilize litter fall of rubber trees as organic compost.
To assess the effect of compost on growth and latex production in new and mature rubber plantation.
To evaluate the role of different nitrogen fixing crops in new rubber plantation.

Methodology:

The study was conducted at Dantmara Rubber Estate, Fatikchari, Chittagong. It is a ongoing project which started at 2010 and will continue upto 2015. Initial soil samples were analysed to know the chemical properties of the different depths of the soils. Different rates of fertilizers, compost and manure were used to assess the effect of compost on growth and latex production in new and mature rubber plantation. Average girth at breast height (GBH) and height of rubber trees were recorded from different cover crop treated experiments.

Source of Information: Research Progress 2014-2015, Forest Management Wing, Bangladesh Forest Research Institute, Chittagong

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Average girth at breast height (GBH) and height of rubber trees were recorded from different cover crop treated experiments where maximum GBH (11.60 and 9.79 cm) and height (4.13 and 3.63 m) was found in arhar as a inter crop treated in rubber plantation compared to other treatments.

Knowledge Management: Report/Proceedings