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Notes on the Effect of Cultural Practices and Different Sources of Organic Matter on Rice Cultivars

M. N. H. Khan
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

M. A. Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

A. N. M. Shahiduzzaman
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

The cultivars did not show any significant difference in respect of grain yield. Though cultural practices showed insignificant variation in respect of grain yield, yet there was increasing trend for the same over the control. However, sources or organic matter showed highly significant effect on the grain yield on both the cultivars (Nizershail and IR20) of rice. Organic matter supplied through green manuring gave the highest yield (2.95 t/ha).

Keywords: Effect, Cultural Practices, Organic Matter, Rice Cultivars

Location: Bangladesh Agricultural University Farm, Mymensingh

Start Date: 26-08-1972

End Date: 00-12-1972

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To find the effect of cultural practices (weeding) and sources of organic matter on local and exotic rice cultivar so that a practical suggestion could be given to the rice growers of Baugladesh.

Methodology:

The work was done at the Bangladesh Agricultural University Farm in the year 1972 (July through December). The scil was clay loam in texture with a pH value of 6.6. Two different cultivars viz, Nizershail and IR20 were used. The green manuring crop Dhaincha (Sesbania aculeata) were sown on the plot when it was randomly selected for green manuring. After two months green manuring crop was cut, spread and ploughed down (average weight 9 kg/plot). The same quantity of cowdung was applied on the plot selected for cowdung application and there was no organic matter in the control plot. Different cultural practices, such as (i) weeding and mulcing by "Nirani", (ii) weeding and mulching by wheel hoe, (iii) weeding. The experimental design was split-plot with the cultivars in the main plots and the combination of organic matter and cultural practices in the unit plots with three replications. The net area of each unit plot was 25 m². Forty five day old seedlings were transplanted in the field on August 26, 1972 in straight rows at a spacing of 25 cm X 20 cm with two seedlings per hill. Fertilizers were applied at the rate of 90 kg N, 67 kg P₂0₅, 45 kg K₂0 /ha through urea, triple superphosphate, and muriate of potash respectively. Whole amount of phosphate and potash and 50 % of urea were applied during land preparation while the rest 50 % of urea was given in two installments one at maximum tillering stage and the other at panicle initiation stage.

Source of Information: Bangladesh J. Agril. Sci. 3 (1) : 75-78; 1976

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The cultural practices under study did not show any significant effect on the grain yield.

Knowledge Management: Journal