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Integrated Nutrient Management on Sunflower in Coastal Char Land (2018-19)

I.S.M. FARHAD
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

M.M.U. CHOWDHURY
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

M.S.I. KHAN
Soil Science Division, BARI, Joydebpur, Gazipur, Bangladesh

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

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

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

Abstract/ Executive Summary:

An experiment was conducted at coastal charland of OFRD, BARI, Noakhali, MLT site, Amtoli, Barguna and ARS, BARI, Benarpota, Satkhira during rabi season of 2017-18 to evaluate the effect of integrated nutrient management for better yield of sunflower. Six treatment combinations viz. T₁= Soil test based fertilizer dose for HYG, T₂= IPNS with 5 tha^-1cowdung, T₃= IPNS with 5 t ha^-1 compost, T₄= IPNS with 1.5 t ha^-1vermicompost, T₅= Farmers’ practice, T₆= Absolute Control were tested. The experiment was laid out in randomized complete block design with 3 replications and BARI Sunflower-2 was used as test crop. The IPNS treatment combinations are significantly differ with rest of the treatments in terms of yield and economic return. Application of treatment IPNS with 1.5 t ha^-1 vermicompost significantly increased all of the parameters such as the plant height, head diameter, no. of seed head^-1, 1000 seeds weight, seed yield and stover yield. The significantly highest seed yield (2.17, 2.26 and 2.05 t ha^-1 at Noakhali, Patuakhali and Satkhira, respectively) was recorded in IPNS with 1.5 tha^-1vermicompost treated plot (T₄) while the lowest seed yield (1.09, 1.18 and 1.04 t ha^-1 at Noakhali, Barguna and Satkhira, respectively) was observed from absolute control treatment (T₆). Salinity level increased at slower rate in T_2, T₃ and T_4, treatments where IPNS based nutrient management packages were imposed. On the other hand, salinity level increased at higher rate in T₆ treatment followed by T₅ and T₁. During the crop growing period soil salinity ranged from 0.62 to 9.72 dS m^-1, 0.58 to 9.23 dS m^-1, 0.73 to 10.75 dS m^-1 at Noakhali, Barguna and Satkhira , respectively from emergence to maturity stages of the crop.The highest net return (52710 Tk. ha^-1, 45573 Tk. ha^-1 and 43520 Tk. ha^-1 at Noakhali, Barguna and Satkhira, respectively) as well as BCR (1.82,1.67 and 1.65 at at Noakhali, Barguna and Satkhira, respectively) were obtained from T₄ treatment (IPNS with 1.5 tha^-1vermicompost) whereas the lowest net return (17020 Tk. ha^-1 ,14740 Tk. ha^-1 and 12490 Tk. ha^-1 at Noakhali, Barguna and Satkhira, respectively) and BCR (1.40, 1.32 and 1.28 at Noakhali, Barguna and Satkhira, respectively) were obtained from control (T₆) treatment.

Keywords: Integreted nutrient management, Sunflower, Coastal charland

Location: OFRD, BARI, Noakhali, MLT site, Amtoli, Barguna and ARS, BARI, Benarpota, Satkhira

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Sunflower

Objectives:

To know the effect of integration of nutrients for cultivation of sunflower in coastal charlands and to find out the optimum and economic fertilizer dose for sunflower.

Methodology:

A field experiment was conducted at coastal charland of OFRD, BARI, Noakhali (AEZ-18), MLT site, Amtoli, Barguna (AEZ-13) and ARS, BARI, Benarpota, Satkhira (AEZ-13) during rabi season of 2017-2018 to evaluate the effect of integrated nutrient management for better yield of sunflower. Before conducting the experiment initial composite soil samples (0-15 cm) were collected from the experimental plots and collected samples were analyzed in the laboratory following standard methods and recorded. Moreover, Nutrient status of vermicompost, compost and cowdung used in the experimental field were also analyzed before conducting the experiment. The experiment was laid out in a RCB design with three (03) replicates. The unit plot size was 4m × 3m and BARI Sunflower-2 was used as the test crop. Treatments were randomly distributed within the blocks as follows: T₁= Soil test based fertilizer dose for HYG, T₂= IPNS with 5 tha^-1cowdung, T₃= IPNS with 5 t ha^-1 compost, T₄= IPNS with 1.5 t ha^-1vermicompost, T₅= Farmers’ practice, T₆= Absolute Control. The seeds were sown @ 10 kg ha^-1 in line with the spacing of 50 cm × 25 cm on 26 December, 23 December and 19 December, 2017 at Noakhali, Barguna and Satkhira, respectively. Different intercultural operations and plant protection measures were taken as and when necessary to raise healthy crops. The crop was harvested on 5 April, 3 April and 27 March, 2018 at Noakhali, Barguna and Satkhira, respectively. Soil salinity level was measured by using Electrical Conductivity meter Adwa (AD 310) at different growth stages of the crop. Data were collected on an individual plant basis from ten (10) randomly selected plants of each plot in such a way that the border effect was avoided for high precision. Data on yield and yield contributing parameters were recorded and statistically analyzed with the help of statistical package statistix 10 (Analytical Software. Tallahassee, Fla, USA) and mean separation was tested by Duncan’s Multiple Range Test (DMRT). Methods of chemical analysis: Soil pH was measured by a combined glass calomel electrode (Jakson, 1958). Organic carbon determination by wet oxidation method (Walkley and Black, 1934). Total N was determined by modified Kjeldahl method. Ca and Mg were determined by NH₄OAc extraction method. K, Cu, Fe, Mn and Zn were determined by DTPA extraction followed by AAS reading. Boron was determined by CaCl₂ extraction method. Phosphorus was determined by Bray and Kurtz method (Acid soils) and Modified Olsen method (Neutral + Calcareous soils). S was determined by CaH₄(PO₄)₂.H₂O extraction followed by turbidimetric method with BaCl_2.

Source of Information: Annual Report 2018-2019, BARI, Gazipur, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The overall results indicated that IPNS with 1.5 tha^-1vermicompost is superior to the other fertilizer management packages in respect of yield as well as economic return for sunflower cultivation in the coastal charland of Noakhali, Barguna and Satkhira. This is the results of 1^st year study, so further investigation will be required for the confirmation of the findings.

Knowledge Management: Report/Proceedings