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Integrated Nutrient Management for Sustainable Yield of Major Spice Crops in Bangladesh

S. Noor
Soil Science Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur

M.S. Khan
Soil Science Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur

Abstract/ Executive Summary:

Spices being an indispensable ingredient of the daily diet are still falling behind with a yearly deficit of 1.18 million tons. Because of shrinking land resources, there is hardly any scope to raise the area and production of spice crops horizontally. As a result, the high demand of spices could only be met up by increasing its per ha yield. But intensive crop cultivation with imbalanced fertilization resulted in severe degradation of soil fertility in Bangladesh. To meet this challenge Soil Science Division, Bangladesh Agricultural Research Institute (BARI) developed balanced fertilizer recommendations for the major spice crops through integrated Nutrient Management (INM) approach. The present paper documents some of the key findings of the related research as conducted by BARI during the recent years (2000-2007). Nitrogen @ 120 kg ha^-1 and sulphur (@ 20 kg ha^-1) produced significantly higher yield of onion bulb, when they are integrated with other nutrients (P₄₀, K₇₅, Zn₅, kg^-1) along with cowdung (5 t ha^-1 ) . Boron @ 1.30 kg ha^-1 together with recommended dose of other nutrients optimized the seed yield of onion at Bogra. Garlic yield can be minimized with 2.5 t ha^-1 poultry manure in combination with zinc (@ 5 kg ha^-1) and boron (@ 1 kg ha^-1) providing with recommended doses of other nutrients. Soil test based fertilizer (STB) dose along with cowdung (@ 5 t ha^-1) produced significantly higher yield yield of chilli. Zinc and boron contributed significant yield increase for dry chilli. Ginger and turmeric yield also maximized with integrated use of zinc and boron in the deficient soil of hilly region. The yield of coriander was optimized with the integrated use of NPKS fertilizers providing two irrigations at 22 and 40 days after sowing. The yield of black cumin can be increased significantly due to integrated use of N₁₀₀, P₃₃, K₅₈, S₂₅ (kg ha^-1) both at Faridpur and Bogra. The above mentioned fertilizer packages also appeared as economically profitable as they provided higher economic return in most cases. Further investigations are needed to observe the post harvest soil fertility status, nutrient uptake and balance especially for the major spice crops when they extensively cultivated in different soil under varied locations.

Keywords: Soil fertility, Integrated Nutrient Management, Balanced fertilization, Spice crops, Sustainable yield

Location: Central Farm, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur

Start Date: 01-07-2000

End Date: 30-06-2007

Program Area: Crop-Soil-Water Management

Commodity:

Objectives:

1) To integrate all sources of plant nutrients and also all improved crop production technologies into a productive agricultural system.

Methodology:

The present article is mainly a review paper. Research works regarding nutrient management for spice crops (except onion) has not been done extensively so far as like many other crops. However, with the establishment of Spice Research Center (SRC) in the late nineties, research works on spice crops has been strengthen. However, the present paper furnishes some of the notable findings of the research as conducted by Soil Science Division (BARI) during the recent years (2000-20007). In these contexts, traditional methods for field trials and standard laboratory procedures were followed to carry out respective experiment. Readers those who are interested, can get in detail information regarding materials and methods followed and subsequent results obtained if they read the paper of their choice as mentioned in the reference list.

Source of Information: S. Noor, N.C. Shil and M.A. Haque, 2012. Integrated Nutrient Management for sustaining Crop Yield & Soil Fertility. Soil Science Division, Bangladesh Agril. Res. Inst. Publication no.-14

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

1) Experimental evidence suggests that Bangladesh has a great potentiality to increase the production of spice crops. The yield of major spice crops like onion, garlic, chilli, turmeric, ginger can be increased substantially if the recommended balanced fertilization packages are used through integrated nutrient management approach. 2) Crops like chilli, garlic, turmeric, ginger were appeared as very responsive to zinc and boron fertilization. The potential area of CHT region can be brought under successful and profitable ginger and turmeric cultivation if they are fertilized with zinc and boron along with recommended dose of other fertilizers and manure. 3) Use of chemical fertilizer can be reduced substantially when they are integrated with poultry manure especially for garlic, onion, and chilli cultivation.

Knowledge Management: Journal