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Effect of Different Sources of Nutrients and Irrigation on the Fruiting Behaviour and Yield of Litchi

L. Akter
Bangladesh Agricultural Development Corporation, Mymensingh

M.M. Hossain
Deptartment of Agronomy, BAU, Mymensingh

M.N.N. Mazumder
Planning and Development Cell, BINA

F. Ahmed
Academic Section, BAU, Mymensingh

M. A. Rahim
Department of Horticulture, BAU, Mymensingh

Abstract/ Executive Summary:

The present study was conducted at Germplasm Centre (GPC) of Fruit Tree Improvement Project (FTIP), Department of Horticulture, Bangladesh Agricultural University, Mymensingh during the period of January-July, 2004 to study the effect of different sources of nutrients and irrigation on the yield of Litchi (cv. Mongalbari). The study consisted of two factors namely (a) Different sources of nutrient as (i) Recommended fertilizer (NPK) (ii) Well decomposed cowdung (WDCD) (iii) Poultry manure (iv) Compost (v) Control; (b) Irrigation at different intervals as (i) 7 days intervals (ii) 14 days intervals (iii) 21 days intervals and (iv) Control. The experiment was laid out in Split plot design with three replications. Results revealed that almost all parameters were influenced by different nutrient sources and irrigation. Number of inflorescence per plant, number of fruit set per plant at three times (i) pea stage (ii) marbel stage (iii) mature stage, weight of individual fruit, length of fruit, fruit diameter, skin weight, length of seed, Total Soluble Solids (TSS) were found superior in plants fertilized by different sources of nutrient and irrigation. Seed to pulp ratio was higher (6.28) in controlled plant and medium (4.85) in fertilized plant. The highest yield (10.35 kg) was observed when plants were fertilized by NPK and irrigation was given at 7 days intervals. The fruits of control plants had the lowest Total Soluble Solids (TSS). Considering all the above factors, fertilization by NPK and irrigation at 7 days interval are very effective for increasing yield of litchi.

Keywords: Nutrients, Irrigation, Fruiting behaviour, Yield

Location: Germplasm Centre (GPC) of Fruit Tree Improvement Project (FTIP), Department of Horticulture, Bangladesh Agricultural University, Mymensingh

Start Date: 00-01-2004

End Date: 00-07-2004

Program Area: Crop-Soil-Water Management

Commodity: Litchi

Objectives:

1. To determine the effect of sources of nutrient and irrigation on fruiting behaviour and yield of litchi cv. Mongolbari.

Methodology:

A field experiment was conducted at Germplasm Centre (GPC) of Fruit Tree Improvement Project (FTIP), Department of Horticulture, Bangladesh Agricultural University, Mymensingh during the period from January to July 2004 to evaluate the effect of different sources of nutrient and irrigation on the fruiting behaviours, yield and quality of litchi. Five years old litchi plants (CV.Mongolbari) were selected as experiment materials for the experiment. Mongalbari variety is cultivated mainly in Mymenshing region. Its seed size is large and pulp is sweet. Weeding was done whenever required. No pesticide was used in the test plants. The experiment comprised two factors namely (A) Sources of nutrient as (i) Recommended chemical fertilizer (NPK@ 0.5, 1.50 and 1.0 kg plant^-1) (ii) Compost @ 100 kg plant^-1 (iii) Well decomposed cowdung (WDCD@ 100 kg plant^-1) (iv). Poultry manure @ 50 kg plant^-1 (v) Control (No fertilizer) (B) Different irrigation intervals (i) 7 days; (ii) 14 days (iii) 21 days and (iv) control (No irrigation). The experiment was laid out in the split plot design having three replications with irrigation in main plot and nutrient source in sub-plot. Thus there were all together 20 treatment combinations. Observation were made on yield contributing traits such as number of inflorescence per plant, number of fruit set per plant (at three times a. pea stage b. marble stage c. mature stage), individual fruit weight, fruit length, diameter of fruit, weight of skin, pulp weight, weight of seed, seed length, Total Soluable Solids (TSS), seed to pulp ratio and yield per tree. Data were analyzed statistically by using the computer package MSTAT. Differences among the means were evaluated by the Least Significant Difference (LSD) test.

Source of Information: J. Agrofor. Environ. 2(1): 1-6, 2008; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results revealed that almost all parameters were influenced by different nutrient sources and irrigation. Number of inflorescence per plant, number of fruit set per plant at three times (i) pea stage (ii) marbel stage (iii) mature stage, weight of individual fruit, length of fruit, fruit diameter, skin weight, length of seed, Total Soluble Solids (TSS) were found superior in plants fertilized by different sources of nutrient and irrigation. Seed to pulp ratio was higher (6.28) in controlled plant and medium (4.85) in fertilized plant. The highest yield (10.35 kg) was observed when plants were fertilized by NPK and irrigation was given at 7 days intervals. The fruits of control plants had the lowest Total Soluble Solids (TSS). Considering all the above factors, fertilization by NPK and irrigation at 7 days interval are very effective for increasing yield of litchi.

Knowledge Management: Journal