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Nutrient Management for Sustaining Soil Fertility and Yield of Wheat-mungbean-t.aman Cropping Pattern at Ishurdi (2019-2020)

M . T. Rahman
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh.

M. A. Salam
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

M. H. R. Sheikh
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

S. Akhter
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

R. U. Choudhury
Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh.

Abstract/ Executive Summary:

A field experiment on Wheat-Mungbean-T.aman cropping pattern was carried out in High Ganges River Floodplain Soils (AEZ-11) at Regional Agricultural Research Station, Ishurdi, Pabna during the period of 2000-2020. There were six treatments viz. 125% of recommended dose (RD =120-35-75-20-5 kg of N P K S Zn ha^-1), 100% of RD, 75% of RD, 50% of RD, farmer’s practice and native fertility replicated three times. The highest yield was obtained in the 125% of RD treatment which was similar to the 100% RD treated plot. The results revealed that soil fertility sustained in 125% of RD and 100% of RD treatments.

Keywords: Sustainable fertilizer recommendations, Wheat, Mungbean, T.aman, Cropping pattern, Soil health, Nutrient, Fertilizer, AEZ

Location: RARS, Ishurdi, Bangladesh

Start Date: 00-00-2000

End Date: 00-00-2020

Program Area: Farming System

Commodity: Soil fertility, Fertilizer, Cropping pattern

Objectives:

To i) find out sustainable fertilizer recommendations for Wheat-Mungbean-T.aman cropping pattern, ii) to monitor soil health after each cropping pattern and iii) to estimate uptake of different nutrients and to make a balance sheet for each nutrient.

Methodology:

This field trial was conducted in High Ganges River Floodplain Soils (AEZ-11) of RARS, Ishurdi during the period of 2000 to 2020. A description of nutrient status of initial soils prior to fertilization has been presented.

The experiment was laid out in a RCB design with six treatments replicated three times. The unit plot size was 5m x 6m. The treatment combinations were T₁= 125 % of RD (RD =120-35-75-20-5 kg of N P K S Zn ha^-1), T₂ = 100 % of RD, T₃= 75 % of RD, T₄= 50 of RD %, T₅= Farmers practice and T₆= Native fertility. The farmers practice treatment was 60-40-30 kg ha^-1 of NPK respectively. The tested wheat variety was Shourav from 2009 it was Shatabdi and now it is BARI Gom-30. All PKSZn and half of N were applied at the time of final land preparation and the remaining half of N was applied before booting stage of wheat. The crops were harvested at full maturity. Only nitrogen was applied @ 20 kg N ha^-1 in all the plots except the native fertility treatment for the second crop Mungbean (Var. BARI Mung-6). The seeds were sown in the 3^rd week of March and first picking was on the first week of May and continued up to 4^th week of May. Then the total biomass after second harvest was incorporated in the soil.

The same sequence was maintained in T.aman (BINA Dhan 7) for fertilizer treatments. The seedling were transplanted in the 1^st week of July 2019 and harvested in the 1^st week of November 2019. Duncan Multiple

Range Test (DMRT) was used to determine the significant differences in the response of different treatment combinations.

Source of Information: Annual Research Report 2019-2020, Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The average soil fertility status were mostly unchanged, somewhere it was increased. As potassium showed negative balance, more ptasium is to be added (to improve soil status). So, through this practice the soil nutritional status may be sustained.

Knowledge Management: Report/Proceedings