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Responses of Irrigation and Fertilizers on the Growth and Yield of Hordeum Vulgare L.

M. S. I. Mollah
Dept. of Botany Rajshahi University, Rajshahi, Bangladesh.

N. K. Paul
Institute of Biological Sciences, Rajshahi University, Rajshahi, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted to study the influence of soil moisture, NPK fertilizers and variety on yield and yield components of barley (Hordeum vulgare L.). Plant height, tiller number, extrusion length, spikelet number, plant weight, grain number, 100-grain weight and grain yield were observed highest in the I₂ (40 mm irrigation water) and F₃ (120N 75P 45K) treatments. I₂ (40 mm irrigation water ) and F₃ (120N 75P 45K) treatments had the highest consumptive water use (CWU). But the highest water use efficiency (WUE) was observed in the I₀ (no irrigation) and F₃ treatments. Cultivar BARI-Barley-2 had the highest CWU, while cultivar BL-1 had the highest WUE.

Keywords: Barley, Fertilizer, Grain yield, Consumptive water use

Location: Rajshahi University campus (AEZ-11)

Start Date: 00-11-2004

End Date: 00-03-2005

Program Area: Crop-Soil-Water Management

Commodity: Barley

Objectives:

To find out better growth and yield components of four varieties of barley in local climatic conditions of Bangladesh.

Methodology:

The experiment was conducted in the experimental field of Rajshahi University campus (AEZ-11) during the period from November, 2004 to March, 2005 with four barley (Hordeum vulgare L.) varieties, namely, BARI-Barley-1, BARI Barley-2, BHL-3 and BL-1. The soil of the field wassilty loam, having pH 7.5 as well as 35% field capacity. The characteristics of the experimental soil (initial) are given below: A. Mechanical characteristics of soil Sand 11.24%, silt 75.40% and clay 13.36%. B. Chemical composition of soil Organic carbon 1.45%, total nitrogen 0.138%, available P 7.25 ppm, available K 176 ppm and available S 21 ppm. The experiment was arranged in split-split plot design with three replications. Each replicated field was divided into three main plots for irrigation treatment. Each main plot was divided into four subplots for varieties of barley. Three levels of irrigation treatments (0, 20 and 40 mm water as I₀, I₁ and I₂ respectively) were adopted at every 30 days interval for three times during the growing period. Four levels of fertilizer treatments used viz., F₀(control with no added N, P, K), F₁ (N, P and K used at the rate of 40, 25 , 15 kg/ha), F₂ (N,P,K at the rate of 80, 50, 30 kg/ha) and F₃ (N,P,K at the rate of 120, 75, 45 kg/ha). Necessary intercultural operations were adopted and no fungicides or insecticides were used. Six plants per treatment per variety per replication were harvested to obtain grain yield and its components. Measurements of yield were made by recording of plant height, tiller number, extrusion length, spikelet number per spike, plant weight per plant, grain number per plant, 100-grain weight and grain yield. Soil moisture was determined gravimetrically up to 1 m depth of soil profile from 5 soil layers (0-20 cm, 20-40 cm, 40-60 cm, 60-80 cm and 80-100 cm) before sowing of seed and at the final harvest with the help of an auger. The moisture content values were used to compute consumptive water use (CWU) according to the following formula given by Dastane (1972). Statistical analysis was carried out according to Gomez and Gomez (1984

Source of Information: Bangladesh J. Sci. Ind. Res. 46(3), 369-374, 2011

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Plant height, tiller number, extrusion length, spikelet number, plant weight, grain number, 100-grain weight and grain yield were observed highest in the I₂ (40 mm irrigation water) and F₃ (120N 75P 45K) treatments. I₂ (40 mm irrigation water ) and F₃ (120N 75P 45K) treatments had the highest consumptive water use (CWU). But the highest water use efficiency (WUE) was observed in the I₀ (no irrigation) and F₃ treatments. Cultivar BARI-Barley-2 had the highest CWU, while cultivar BL-1 had the highest WUE.

Knowledge Management: Journal