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Nutrient Dynamics in Mungbean T-aman Cropping Pattern Under Different Levels of Lime

B. Basak
Soil Resource Development Institute, Bangladesh

B. Roy
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh

M. F. Hossain
Soil Resource Development Institute, Bangladesh

B. S. Sultana
Soil Resource Development Institute, Bangladesh

B. C. Sarker*
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh

Abstract/ Executive Summary:

Liming is an important and eco-friendly soil management practice for proper plant nutrition in acid piedmont plain soil. A field experiment was conducted using eight levels of lime, viz., 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5 t ha-1 from dolomite in piedmont plain soil to grow summer mungbean for investigating the dynamics of soil acidity and macronutrient content. The experiment was laid out RCBD replicated thrice following mungbean Taman cropping pattern. After liming the pH of soils was increased sharply with the increased rate of liming. Liming increased both exchangeable Mg and Ca in the subsoil region but a higher increase was observed for Mg than that of Ca. Liming at the higher rate was in favor of the decline in subsoil acidity, especially for the later period of the experiment. The lime @2.0 t ha-1 was better were more plant nutrients became available by increasing the concentration of K, Ca, Mg, N and P and slight decreased in the concentration of organic matter. The changes of soil chemical properties like pH, OM and other macronutrients availability were significantly increased due to the application of different levels of lime. The study revealed that liming contributed to higher mungbean yield and might be beneficial for higher crop yield.

Keywords: Lime, Nutrient dynamics, Mungbean-Taman pattern

Location: Agricultural farm of Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur, Bangladesh

Start Date: 00-04-2009

End Date: 00-11-2009

Program Area: Crop-Soil-Water Management

Commodity: Nutrient dynamics, Lime, Cropping pattern

Objectives:

Little information is available about the lime requirement of piedmont soils in the study area. The purpose of the study was to find out the requirement of lime of that particular soil and to study the nutrient dynamics in the mungbean-T-Aman cropping pattern

Methodology:

Experimental site and soil properties The experiment was conducted at the agricultural farm of Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur, Bangladesh during April 2009 to November 2009. The physical and chemical properties of the soil have been presented in Table 1.

Eight levels of lime viz, 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5 t ha-1 , respectively, were applied. The experiment was laid out in a RCBD with three replications having 24 combinations. The cropping pattern was mungbean-T-aman-Wheat/Fellow. Dolomite was used as liming material. The ground limestone was surface-applied only at initiation of this experiment.

Soil samples (0–15 cm) were collected before and after liming, soil samples mungbean-T-Aman field at 20-d interval from 4 May to 13 December 2009. All the properties of soil were tested in the Soil Resource Development Institute, regional station Dinajpur. The land was sandy loam and was ploughed and fertilized for mungbean as per Fertilizer Recommendation Guide (BARC 2005). The initial soil sample (before liming) was analyzed for both physical and chemical properties. Three soil samples were collected randomly from each block and mixed together for composite samples. Soil pH was measured with the help of a glass electrode of pH meter. Organic C was determined by wet oxidation method (Page et al. 1982) and organic matter was calculated. Total N in soil was determined by micro-Kjeldahl method. Available P was extracted by Bray and Kurtz method for acidic soil, Petersen (1999). Available P, and K were determined by the diffusion absorption method, Bray-1 method, and extract-flame photometric method, respectively (Hesse 1972). Exchangeable Ca and Mg were extracted and determined by the atomic adsorption method. The data were analysed statistically for comparing mean difference using MSTATC program.

Source of Information: Journal of Science and Technology 11(June 2013): 86-90

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The moderate rate of lime (2 t ha-1) in this experiment is equivalent to the recommended rate of lime (RRL). The present study showed that the amount of lime at 2 t ha-1 was suitable for reducing soil acidity and other macronutrient availability in the soil and thereby increasing crop yields. The present result suggested that favorable changes of The moderate rate of lime (2 t ha-1) in this experiment is equivalent to the recommended rate of lime (RRL). The present study showed that the amount of lime at 2 t ha-1 was suitable for reducing soil acidity and other macronutrient availability in the soil and thereby increasing crop yields. The present result suggested that favourable changes of

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