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Studies on the Performance of Organic Matter Status on Different Level in Reducing Chemical Fertilizer Use in Tea

M. A. Motalib
Chief Scientific Officer
Department of Chemistry, BTRI, Srimangal, Moulvibazar

Ashim Kumar Saha
Senior Scientfic Officer
Soil Science Division, BTRI, Srimangal, Moulvibazar

Apu Biswas
Scientific Officer
Soil Science Division, BTRI, Srimangal, Moulvibazar

Abstract/ Executive Summary:

The importance of soil organic matter in soil fertility and crop productivity has been well recognized. The organic matter is the principal supplier of major nutrients in soil and equally importance influencing the soil aggregation, water holding capacity and soil structural condition. It makes the soil loose, friable and helps in proliferance of roots as roots can uptake more nutrients. The soil retains high organic matter needs minimum chemical fertilizer comparing to the soil with low content of organic matter the long term experiment 2012-2015 has been undertaken to observe the performance of organic matter on different level in reducing the chemical fertilizer use at Bilashcherra experimental Farm.The first year result 2012 shows that, in every treatments yield was increased over control. The highest yield 2434 kg/ha made tea was recorded in the treatment T₆where 85% of the recommended those of chemical fertilize and 6 ton/ha organic matter were applied. The rate of increase (%) over control was 36.89 in the case of treatment T₆. But the increase of yield due to different treatment was statistical in significant (F=1.99)

Keywords: Organic manure (cow-dung), Yield & Tea

Location: Bilashcherra Experimental Farm

Start Date: 01-01-2012

End Date: 31-12-2015

Program Area: Crop-Soil-Water Management

Commodity: Organic fertilizer

Objectives:

To observe the performance of organic matter on different level in reducing the chemical fertilizer use

Methodology:

Treatments: 8, Replication: 3, Plot size: 14.4 m², Design: RBD, Treatment combination: T₁=Control, T₂= recommended dose of chemical fertilizer, T₃= organic matter (2 ton/ha), T₄= organic matter (6 ton/ha), T₅=85% of T2 + organic matter (2 ton/ha), T₆= 85% of T2 + organic matter (6 ton/ha), T₇=70% of T₂ + organic matter (2 ton/ha), T₈=70% of T2 + organic matter (6 ton/ha). Recommended fertilizer dose Urea 220, TSP 66, MOP 120kg/ha. Regular weekly data were recorded.

Source of Information: Annual Report 2012

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The first year result 2012 shows that, in every treatments yield was increased over control. The highest yield 2434 kg/ha made tea was recorded in the treatment T₆ where 85% of the recommended those of chemical fertilize and 6 ton/ha organic matter were applied. The rate of increase (%) over control was 36.89 in the case of treatment T₆. But the increase of yield due to different treatment was statistical in significant (F=1.99)

Knowledge Management: Report/Proceedings