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Efficiency of Muriate of Potash on Rice in Bangladesh Soils

S. A . Haque
Department of Soil Science, Bangladesh Agricultural University, Mymensingh.

S. A . Haque
Department of Soil Science, Bangladesh Agricultural University, Mymensingh.

Abstract/ Executive Summary:

Four different rates of potassium in two split application of 40 kg each two rates of nitrogen and a basal dose of phosphate were used in the experiment. The increase in paddy yield due to potash fertilisation in Aman and Boro seasons was quite encouraging. Potash alone depending on its rates and soil conditions, contributed to an increase in paddy yield from 40.2 to 688.8 kg/ha. in Aman season,while in Boro season, the yield increase varied from 21.9 to 865.2 kg/ha. The Gangetic alluvial soils rich in calcic materials (12.5-13.8 m.e%) appeared to respond most favourably to potash fertilisation.

Keywords: Potosh fertilizer, Yield, Paddy/rice.

Location: Six agricultural farms of the BADC and the Agricultural University farm

Start Date: 00-00-1979

End Date: 00-00-1980

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer

Objectives:

To evaluate the response of potash fertilizer in rice production.

Methodology:

The experiment was carried out in six agricultural farms of the BADC and the Agricultural University farm. The BADC farms are located in Thakurgaon, Duttanagur, Tebnia, Modhupur, Sylhet and Jhilonja and the University farm is located in Mymensingh. Four rates of potash, two rates of nitrogen and a snigle rate of phosphate were included in the experiment. Potash was applied at the rates of 40, 80 and 120 kg K2O /ha. as basal, and 8O kg K2O/ha, was applied in two split applications, one- half as basal and the remaining half at panicle initiation stage. Nitrogen was applied at the rates of 80 and 120 kg N/ha in three equal split applications, one third as basal, one third at maximum tillering stage and one third at panicle initiation. There was a total of ten different treatment combinations with four replications for each treatment. A randomised block design was used in the experiment.

Source of Information: Bangladesh J. Agril. Sci. 18 (1): 1- 4 January,1991

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results indicate significant response of potash fertilizer on grain yield of paddy of in some of the areas under investigation.

Knowledge Management: Journal