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Effect of Zinc and Boron on Yield and Yield Contributing Characters of Lentil in Low Ganges River Floodplain Soil at Madaripur, Bangladesh

M. A. Quddus
Senior Scientific Officer
Pulses Research Sub-Station, Bangladesh Agricultural Research Institute (BARI), Gazipur

H. M. Naser
Principal Scientific Officer
Soil Science Division, BARI, Gazipur.

M. A. Hossain
Principal Scientific Officer
Pulses Research Sub-Station, Bangladesh Agricultural Research Institute (BARI), Gazipur

M. Abul Hossain
Principal Scientific Officer
RPRS, BARI, Madaripur, Bangladesh.

Abstract/ Executive Summary:

A study was conducted in Calcareous Low Ganges River Floodplain Soil (AEZ 12) at Regional Pulses Research (RPRS), Madaripur during the Rabi season of 2010-12.The objectives were to evaluate the effect of Zinc (Zn) and Boron (B) on the yield and yield contributing characters of lentil (Lens culinaris Medic) and to estimate the optimum dose of Zn and B for yield maximization. There were 16 treatment combinations comprising four levels each of Zinc (0, 1.0, 2.0 and 3.0 kg/ha) and Boron (0, 0.5, 1.0 and 1.5 kg/ha) along with a blanket dose of N₂₀ P₁₆ K₃₀ S₁₀ kg/ha were used. The treatments were arranged viz. T₁= Zn₀B₀; T₂= Zn₀B_0.5; T₃= Zn₀B_1.0; T₄= Zn₀B_1.5; T₅= Zn_1.0B₀; T₆= Zn_1.0B_0.5; T₇= Zn_1.0B_1.0; T₈= Zn_1.0B_1.5; T₉= Zn_2.0B₀; T₁₀= Zn_2.0B_0.5; T₁₁= Zn_2.0B_1.0; T₁₂= Zn_2.0B_1.5; T₁₃= Zn_3.0B₀; T₁₄= Zn_3.0B_0.5; T₁₅= Zn_3.0B_1.0 and T₁₆= Zn_3.0B_1.5. The experiment was laid out in RCBD with three replications. Results showed that the combination of Zn_3.0B_1.5 produced significantly higher seed yield (1156 kg/ha). The lowest seed yield (844 kg/ha) was found in control (Zn₀B₀) combination. The combined application of zinc and boron were superior to their single application. Therefore, the combination of Zn_3.0B_1.5 may be considered as suitable dose for lentil cultivation in Bangladesh. But from regression analysis, the optimum treatment combination was Zn_2.85B_1.44 for Madaripur, Bangladesh.

Keywords: Zinc, Boron, Lentil, Yield contributing characters

Location: Regional (RARS) Pulses Research (AEZ-12), Madaripur

Start Date: 00-00-2010

End Date: 00-00-2012

Program Area: Crop-Soil-Water Management

Commodity: Lentil

Objectives:

(i) to evaluate the response of Zn and B on the yield and yield contributing characters of lentil; and

(ii) to find out a suitable dose of Zn and B for the maximization of lentil yield.

Methodology:

An experiment was conducted in Calcareous Low Ganges river floodplain soil (AEZ 12) at Regional (RARS) Pulses Research, Madaripur during the Rabi season of 2010-11 and 2011-12 to evaluate the response of Zn and B on yield and yield components of lentil and to estimate suitable dose for yield maximization. There were 16 treatment combinations comprising four levels each of Zinc (0, 1.0, 2.0 and 3.0 kgha-1) and Boron (0, 0.5, 1.0 and 1.5 kg/ha) along with a blanket dose of N₂₀ P₁₆ K₃₀ S₁₀ kg/ha were used. The treatment were arranged viz. T₁= Zn₀B₀; T₂= Zn₀B_0.5; T₃= Zn₀B_1.0; T₄= Zn₀B_1.5; T₅= Zn_1.0B₀; T₆= Zn_1.0B_0.5; T₇= Zn_1.0B_1.0; T₈= Zn_1.0B_1.5; T₉= Zn_2.0B₀; T₁₀= Zn_2.0B_0.5; T₁₁= Zn_2.0B_1.0; T₁₂= Zn_2.0B_1.5; T₁₃= Zn_3.0B₀; T₁₄= Zn_3.0B_0.5; T₁₅= Zn_3.0B_1.0 and T₁₆= Zn_3.0B_1.5. Initial soil samples (0-15 cm depth) were collected from experimental field and dried in the air through passing a 2-mm sieve and analyzed their physical and chemical properties following standard method. The sample soil of PRSS, Madaripur was loamy in texture having 1.25% organic matter (OM), 0.071% N, 17 μg g^-1 P , 0.12 meq.100 g^-1 K, 16 μg g^-1 S, 10.4 meq.100 g^-1 Ca, 3.2 meq.100 g^-1 Mg, 1.2 μg g^-1 Zn and 0.13 μg g^-1 B. The soil pH was 7.1. The experiment was laid out in a randomized complete block design with three replications. The unit plot size was 4 m × 3 m. The variety was BARI Masur-6. Blanket doses of fertilizer were applied at the time of final land preparation. Zinc and B were applied as Zinc Sulphate and Boric acid, respectively in the respective treatments plot during final bed preparation. Seeds were sown @ 30 kg/ha with a spacing of 30 cm x 5 cm on 10 November 2010 and 11 November 2011. Two weeding were done at 20 and 35 days after sowing (DAS). The disease (Stemphylium) was control by spraying of Rovral fungicide @ 0.2% with three times interval of 7 days, first start at before flowering to flowering stage and insects were control properly by spraying insecticide of karatee @ 0.2%. Crop was harvested at maturity. Yield contributing characters were recorded from 10 randomly selected plants from each plot. Yield (kg/ha) was recorded from the whole plot technique. The data were then statistically analyzed by using MSTAT package

Source of Information: Bangladesh J. Agril. Res. 39(4): 591-603, December 2014, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From the trial, it was found that the combination of Zn_3.0B_1.5, Zn_2.0B_1.0 and Zn_3.0B_1.0 with a blanket dose of N₂₀ P₁₆ K₃₀ S₁₀ kg/ha gave higher yield. From this study it can be concluded that for maximizing the lentil yield in Calcareous Low Ganges Floodplain Soils (AEZ 12), specially Madaripur’s farmer can use Zn_2.0B_1.0 kg/ha.

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