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Effect of Bio Fertilizer and Weeding Regimes on Yield Performance of Bush Bean (phaseolus Vulgaris L.)

F.M.J. Uddin
Department of Agronomy, Bangladesh Agricultural University, Mymensingh - 2202, Bangladesh

Nazmul Hasan
Department of Agronomy, Bangladesh Agricultural University, Mymensingh - 2202, Bangladesh

Md. Rashedur Rahman
Department of Agronomy, Bangladesh Agricultural University, Mymensingh - 2202, Bangladesh

Md. Romij Uddin
Department of Agronomy, Bangladesh Agricultural University, Mymensingh - 2202, Bangladesh

Abstract/ Executive Summary:

In order to assess the effect of biofertilizer and weeding regimes and their interaction on the performance of bush bean (Phaseolus vulgaris L.), a field experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh following randomize complete block design (RCBD) with three replications during winter season, in 2017. The experiment consisted of five treatments of biofertilizer (B₀ = no biofertilizer, B₁ = 1.0 Kg biofertilizer ha^-1 , B₂ = 1.5 Kg biofertilizer ha^-1 , B₃ = 2.0 Kg biofertilizer ha^-1 , B₄ = 2.5 Kg biofertilizer ha^-1) and four level of weeding W₀ = No weeding, W₁ = One weeding at 15 DAS, W₂ = Two weeding at 15 DAS and 30 DAS, W₃ = Three weeding at 15 DAS, 30 DAS and 45 DAS. Yield contributing characters were significantly influenced by biofertilizer and weeding regimes. In case of attributes affected by yield factor for biofertilizer the highest plant height, weight of seed plant^-1, grain and stover yield in 1.5 Kg biofertilizer ha^-1 , number of seed plant^-1 in 1.0 Kg biofertilizer ha^-1 , weight of 1000 seeds in no biofertilizer and harvest index in 2.0 Kg biofertilizer ha^-1 treatments were observed. Considering yield attributes against weeding regimes, the highest plant height, grain yield, stover yield and harvest index in three weeding, weight of seeds plant^-1 and weight of 1000 seeds in two weeding were found. In case of interaction effect highest plant height in B₂W₃, weight of seeds plant^-1 in B₄W₂, weight of 1000 seeds in B₁W₃, grain yield in B₃W₃, stover yield in B₃W₃ and harvest index in B₀W₃ were observed. The results obtained in experiment indicate that there is ample scope to increase the yield of bush bean by applying proper dose of biofertilizer and management of weeding regimes.

Keywords: Bush bean, Biofertilizer, Weeding, Yield

Location: Agronomy Field Laboratory which is belongs to the Old Brahmaputra Floodplain

Start Date: 00-00-2017

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Bio fertilizer, Weed management, Bush bean

Objectives:

To investigate the proper dose of rhizobium for yield performance of bush bean, to investigate the effect of weeding regimes on yield attributes of bush bean (Phaseolus vulgaris L.) and to evaluate the interaction effect of rhizobium and weeding regime on yield performance of bush bean.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory which is belongs to the Old Brahmaputra Floodplain (AEZ9) where non-calcareous dark-gray, floodplain soils are generally pre dominant. The land was medium high and the soil was silty loam well drained with low general fertility level and organic matter content (1.19%) with neutral in nature (pH 6.82). Treatments and experimental deign The experiment consisted of two factors viz. (A) Biofertilizer (B) Weeding regimes. There were five levels of biofertilizer as follows: B₀ = Control (no biofertilizer), B₁ = 1.0 Kg biofertilizer ha^-1 seed treatment, B₂ = 1.5 Kg biofertilizer ha^-1 seed treatment, B₃ = 2.0 Kg biofertilizer ha^-1 seed treatment and B₄ = 2.5 Kg biofertilizer ha^-1 seed treatment. The following four levels of weeding were used: W₀ = No hand weeding, W₁ = One hand weeding at 15 Days after sowing (DAS), W₂= Two hand weeding at 15 and 30 Days after sowing (DAS) and W₃ = Three hand weeding at 15, 30 and 45 Days after sowing (DAS). The experiment was laid out in a Randomized Complete Block Design with three replications. Each replication had 20 unit plots. The unit of plot size was 5m² (2.5 m × 2 m). The blocks and unit plots were separated by 1 m and 0.75 m spacing, respectively. The Bradyrhizobium inoculums strains and seeds of bushbean variety viz. BARI jharsheem-2 used in present study were collected from Bangladesh Agricultural Research Institute (BARI), Jaydebpur, Gazipur. Only one Bradtrhizobium strain was used in this experiment. Crop husbandry The field was prepared by three times ploughing and cross ploughing followed by laddering. The weeds and stubble were removed from each plot and the field was leveled properly before sowing. Layout of the experiment was done according to treatment combination. After layout the land was fertilized with 75 Kg and 40 Kg ha^-1 of triple superphosphate and muriate of potash, respectively. All fertilizers were applied at the time of final land preparation. The fertilizers were applied by broadcasting and were mixed with soil thoroughly. The quantity of seed required 35g for each plot was weighed on the basis of experiment specification (five levels of biofertilizer viz., 0, 1.0, 1.5, 2.0 and 2.5 Kg^-1), considering 90% purity, 80% germination, 20% safety allowance. Then it was kept in polythene bags. Bradyrhizobium broth cultures were mixed thoroughly with seed per treatment with molasses and were placed in cool dry place. The seeds were sown in line to line distance of 30 cm and plant to plant distance 15 cm and were covered with soil. Seeds were sown at 70 Kg ha^-1. Weeding was given in the plots as per treatment specification. Thinning was done to remove diseased plants. Hand irrigation was given in some plots where soils were dry. Cutworm was successfully controlled by application of Savin 50 wp 2 Kg ha^-1 rate mixing with rice husk and molasses. Crop harvesting and data collection The crop was harvested at 118 DAS from all plots. Before harvesting five plants were selected randomly from each plot and were uprooted for data recording. The rest of the plants were harvested plot^-1 wise and were bundled separated, tagged

Source of Information: Archives of Agriculture and Environmental Science 3(3): 226-231 (2018)

Article Link (Online Journal): https://doi.org/10.26832/24566632.2018.030303

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results obtained from this experiment indicated that yield attributes differed with different levels of biofertilizer and weeding regimes. The highest yield was produced from seed inoculated with biofertilizer @ 2 Kg ha^-1 with three weeding followed by biofertilizer @ 2.5 Kg ha^-1 with three weeding. Biofertilizer @ 2Kg ha^-1 increased the yield of bushbean which is beneficial than 2.5 Kg ha^-1 and reduced the fertilizer loss and three weeding was found the best. Therefore, it can be concluded that with manipulation of biofertilizer dose and weeding regimes, there is an ample potential to cultivate Bush bean in Bangladesh context.

Knowledge Management: Journal