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Response of Stem Amaranth to Different Level of Nutrients

M. M. Sultana
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

M. A. Haque
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Abstract/ Executive Summary:

A field experiment on amaranth was conducted to find out the optimum dose of N, P, K and S for maximizing the yield of amaranth during the kharif season of 2014 at central farm of BARl, Gazipur. Treatments comprising four levels of N (0, 30, 60 & 90 kg ha^-1), P (0, 10, 20 & 30 kg ha^-1), K (0, 15, 30 & 45 kg ha^-1) and S (0, 5, 10 & 15 kg ha^-1) were arranged in a randomized complete block design with three replications. The combined effect of NPKS significantly increased yield and yield attributes of amaranth. The highest edible yield of 36.33 t ha^-1 was obtained from T₃ (N₆₀P₂₀K₃₀S₁₀ kg ha^-1) treatment at Gazipur. From the regression analysis, it can be concluded that nitrogen 60 kg, phosphorous 26 kg, potassium 27 kg and sulphur 6.39 kg per hectare of land was found optimum for amaranth production.

Keywords: Amaranth, Nutrinets, Soil, Fertilizer

Location: Central farm of BARl, Gazipur, Bangladesh.

Start Date: 00-00-2014

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Amaranth

Objectives:

Objective of this study was to develop a suitable fertilizer package for amaranth cultivation in our country

Methodology:

The experiment was conducted at the BARI, Gazipur during kharif season of 2014 with the amaranth var. BARI data 1. The initial soil samples of the experimental field were collected and analyzed following standard methods. The fourteen treatments in combination with four levels of N (0, 30, 60 & 90 kg ha^-1); four levels of P (0, 10, 20 & 30 kg ha^-1); four levels of K (0,15, 30 & 45 kg ha^-1) and four levels of S (0, 5, 10 & 15 kg ha^-1) were used. The sources of N, P, K and S were Urea, TSP, MOP and Gypsum, respectively, respectively. TSP, MP and Gypsum fertilizers were incorporated in soil during final land preparation. Top dressing of N in the form of urea was applied at 25 April, 2014 and 2 May, 2014. Land was prepared in wet condition (Puddling) by 4-5 ploughing followed by laddering. Seed wing was done on 30 March, 2014 in 1.6m x 2m plots following RCB design with three replications. Data was recorded from 1 m² selected plots. The yield per plot was recorded and based on that per hectare yield was calculated. The data were analyzed by computer using MSTAT-C Package while the mean separation was done by Duncan's Multiple Range Test (Steel and Torrie, 1960). Methods of chemical analyses: Soil pH was measured by a combined glass calomel electrode (Jakson, 1958). Organic carbon determination by wet oxidation method (Walkley and Black). 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 turbidity method with BaCl₂.

Source of Information: Annual Research Report, 2013-2014, Soil Science Division, BARI, Joydebpur, Gazipur

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The combined effect of NPKS significantly increased yield and yield attributes of amaranth. The highest edible yield of 36.33 t ha^-1 was obtained from T₃ (N₆₀P₂₀K₃₀S₁₀ kg ha^-1) treatment at Gazipur. From the regression analysis, it can be concluded that nitrogen 60 kg, phosphorous 26 kg, potassium 27 kg and sulphur 6.39 kg per hectare of land was found optimum for amaranth production.

Knowledge Management: Report/Proceedings