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Long-term Missing Element Trial at BRRI Regional Station Satkhira in the Year 2013-2014

Md. Imran Ullah Sarkar
Scientific Officer
Soil Science Division, BRRI Gazipur

Md. Humaun Kabir
Principal Scientific Officer
Adaptive Research Division, BRRI

Pranesh Kumar Saha
Principal Scientific Officer
Soil Science Division, BRRI Gazipur

Abstract/ Executive Summary:

The experiment was initiated in a permanent layout at BRRI farm Satkhira in T. Aman 2010 to identify the existence of limiting nutrient(s) in soil for its correction. A number of six treatments as NPKSZn, -N, -P, -K, -S and –Zn were in the permanent layout of this experiment. In the year 2014, BRRI dhan47 was grown in Boro season. The study result showed that, the highest grain yield (6.76 t/ha) of BRRI dhan47 was found from complete fertilizer treatment (NPKSZn). Grain yield significantly reduced due to N and P omission but there was no significant yield reduction due to K, S and Zn omission. Complete fertilizer treatment gave the highest straw yield, which reduced significantly because of N omission. On the other hand, omission of P, K, S and Zn did not reduce straw yield significantly. In Satkhira, N and P is the most limiting factor for grain yield of BRRI dhan47.

Keywords: Missing element technique, Satkhira, BRRI dhan47

Location: BRRI farm, Satkhira

Start Date: 00-00-2014

End Date: 00-00-2014

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer

Objectives:

To identify the existence of limiting nutrient(s) in soil of Satkhira for its correction

Methodology:

The experiment was initiated in a permanent layout at BRRI farm Satkhira in T. Aman 2010, in RCB design with 3 replications. The treatments were, NPKSZn, -N, -P, -K, -S and –Zn. BRRI dhan47 was cultivated in Boro season. Fertilizer doses for Boro season were NPKSZn @ 100-15-60-10-1 kg/ha. Urea-N was applied in three 3 equal splits at final land preparation, at active tillering stage and at 5-7 days before PI stage. Rest of the fertilizers was applied at final land preparation. Grain yield was recorded from 5 m² areas at the center part of each plot and 16 hills were collected for straw yield. The grain yield was recorded at 14% moisture content and straw yield as oven dry basis.

Source of Information: Proceedings of the BRRI Annual Internal Review, 2013-2014

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In Boro 2014, the highest grain yield (6.76 t/ha) of BRRI dhan47 was found from complete fertilizer treatment (NPKSZn). Grain yield significantly reduced due to N and P omission but there was no significant yield reduction due to K, S and Zn omission. Complete fertilizer gave the highest straw yield, which reduced significantly because of N omission. On the other hand, omission of P, K, S and Zn did not reduce straw yield significantly. Nitrogen omission from complete fertilizer significantly reduced straw N content. The highest P concentration in straw was recorded in S omission plot but it was in grain with complete fertilization. Potassium content in grain and straw were statistically identical among treatments. The highest S concentration in straw was found in N omission which was statically similar with P, K and S omission plots. Grain S concentration was the highest in K omission and it was statistically identical with complete fertilizer, N omission and Zn omission plots. Omission of N significantly reduced uptake of all nutrients. Omission of P, K and Zn significantly reduced N uptake only. Omission of S had no effect on nutrient uptake. However omission of K did not affect the K uptake significantly.

Knowledge Management: Report/Proceedings