Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Integrated Nutrient Management for Sweet Orange (2018–2019)

M. Yasmin
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

F.S. Shikha
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

M.A. Rahman
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

M. M. Masud
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

S. Akhter
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at Regional Agricultural Research Station (RARS), Jamalpur with the objectives to develop suitable and economic fertilizer dose for sweet orange cultivation through integrated nutrient management (INM) and to quantify the change of soil health due to the addition of organic manure. The experiment started in 2016-2017 and running its third-year cycle. There were seven treatments viz. T₁: 100% RDCF (N₁₆₉P₇₉K₈₈S₁₈Zn₃B₁g tree^-1yr^-1), T₂: Cowdung 4.5 kg tree^-1yr^-1+ IPNS based inorganic fertilizer (N₁₄₄P₇₂K₇₆S₁₈Zn₃B₁g tree^-1yr^-1), T₃: Cowdung 9 kg tree^-1yr^-1 + IPNS based inorganic fertilizer (N₁₁₉P₆₄K₆₅S₁₈Zn₃B₁g tree^-1yr^-1), T₄: Poultry manure 2.7 kg tree^-1yr^-1 + IPNS based inorganic fertilizer (N₁₅₁P₆₉K₇₄S₁₈Zn₃B₁g tree^-1yr^-1), T₅: Poultry manure 4.5 kg tree^-1yr^-1 + IPNS based inorganic fertilizer (N₁₃₉P₆₂K₆₄S₁₈Zn₃B₁g tree^-1yr^-1), T₆: 125% RDCF (N₂₁₂P₉₉K₁₁₀S₁₈Zn₃B₁g tree^-1yr^-1) and T₇: control. The tested variety was BARI Malta-1. The experiment was laid out in a Randomized Complete Block design (RCBD) with 5 replications. Results revealed that T₄ treatment (Poultry manure 2.7 kg tree^-1year^-1+ IPNS based inorganic fertilizer) produced the highest sweet orange yield (7.37 t ha^-1) and the lowest yield (3.77 t ha^-1) was recorded in the T₇ treatment i.e. unfertilized control treatment. Soil organic carbon (SOC), total N, available P, K and S contents in post-harvest soil were also highest in T₄ treatment. The overall results indicate that T₄ treatment can help increase fruit yield of sweet orange and carbon accumulation in the soil which in turn enriching soil organic matter.

Keywords: Growth, Yield, Quality, Sweet orange, Soil health.

Location: Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

Start Date: 00-00-2016

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Sweet orange, Fertilizer and manures

Objectives:

To identify the suitable integration of different sources of nutrients with respect to plant growth, yield, quality of sweet orange fruit and to restore soil health.

Methodology:

The experiment on integrated nutrient management for sweet orange was conducted at Regional Agricultural Research Station (RARS), Jamalpur since the year 2016. Malta variety BARI Malta-1 was used for the study. The initial soil samples of the experimental field were collected and analyzed following standard methods. Soil chemical properties have been presented. The nutrient composition of different organic manure has been presented. The experiment was laid out in Randomized Complete Block (RCB) design. Six months old saplings were planted on 23 October 2016. Saplings were planted in a row system at a spacing of 3m x 3m with 5 replications. In the third year, the plants were fertilized in two splits. Recommended Dose of Chemical fertilizer for the sweet orange plant was N₁₆₉P₇₉K₈₈S₁₈Zn₃B₁ g tree^-1yr^-1 (3 years old tree). Urea, TSP, MoP, gypsum, zinc sulphate and boric acid were used as a source of N, P, K, S, Zn and B, respectively. All other chemical fertilizers were applied on IPNS basis. Cowdung and poultry manure was used as organic supplement for Malta cultivation. The above-mentioned fertilizers and manures are to be applied in two equal splits- during November and June around the tree excluding a 1 m radius from the tree base. Weeding, irrigation and other management practices were done as and when necessary. Imidachloprid (Imitaf @ 0.25 ml L^-1) was applied to reduce leaf miner infestation when a new leaf emerged. Treatments were as follows - T₁= 100% of RDCF (N₁₆₉P₇₉K₈₈S₁₈Zn₃B₁g tree^-1yr^-1); T₂= Cowdung 4.5 kg tree^-1yr^-1 + IPNS based inorganic fertilizer (N₁₄₄P₇₂K₇₆S₁₈Zn₃B₁g tree^-1year^-1); T₃= Cowdung 9 kg tree^-1yr^-1 + IPNS based inorganic fertilizer (N₁₁₉P₆₄K₆₅S₁₈Zn₃B₁g tree^-1yr^-1); T₄= Poultry manure 2.7 kg tree^-1yr^-1+ IPNS based inorganic fertilizer (N₁₅₁P₆₉K₇₄S₁₈Zn₃B₁g tree^-1yr^-1); T₅= Poultry manure 4.5 kg tree^-1yr^-1+ IPNS based inorganic fertilizer (N₁₃₉P₆₂K₆₄S₁₈Zn₃B₁g tree^-1yr^-1); T₆= 125% of RDCF (N₂₁₂P₉₉K₁₁₀S₁₈Zn₃B₁g tree^-1yr^-1); T₇ = Control. Data on vegetative characters were recorded and analyzed statistically using statistical software STAR which was developed by IRRI. After three years, post-harvest soil samples were collected from 0-15 cm depth and analyzed following standard procedures. Carbon stock and Carbon accumulation were calculated using the following formula. Carbon stock (t ha^-1) = Carbon concentration (%) x bulk density (g cm^-3) × depth (cm); Carbon accumulation (t ha^-1) = Final C stock (t ha^-1) - Initial C stock (t ha^-1).

Source of Information: Annual Research Report 2018–2019, Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The combined use of organic and inorganic fertilizer was efficient in yield increases over the exclusive application of chemical fertilizers. From experimental results, it can be seen that T₄ treatment (integrated use of 2.7 t ha^-1 poultry manure with inorganic fertilizer) was found to be the most effective in increasing yields of sweet orange but improve soil health status not having confirmed during the short period. The experiment should be continued to reach a conclusive decision on nutrient uptake and carbon accumulation in soil.

Knowledge Management: Report/Proceedings