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Improving Nutrition and Productivity Through Zinc Fertilization Under Lentil-mungbean-t.aus-t.aman Rice Cropping System (2017--2018)

M. A. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

S. AKTAR
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M.B. ANWAR
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

A study was conducted at the research field of Pulses Research Sub-Station, Gazipur and Regional Agricultural Research Station, Jashore during rabi 2016-17 to find out the requirement of zinc for Lentil-Mungbean-T.aus-T-aman rice cropping system and to improving nutrient and maintain soil fertility as well as nutrient balance in soil for sustainable crop productivity. The first crop of the pattern is lentil and the levels of zinc, T₁= Zn 0 kg/ha, T₂= Zn 2.0 kg/ha and T₃= Zn 4.0 kg/ha were included in this study. The results showed that the seed yields of lentil ranged from 962-1233Kg ha^-1 at Gazipur and 1540-1810 kg ha^-1 at Jashore, respectively. The average seed yield of the two locations ranged from 1251-1521 kg ha^-1. The highest lentil seed yield was obtained from the treatment T₂ at Gazipur and at Jashore. The lowest yield was found in the control plot. The highest net return was counted from T₂ treatment at Gazipur and at Jashore. The highest benefit-cost ratio 20.32 and 15.42 were counted from the treatment T₂at Gazipur and Jashore, respectively. The lowest net return was calculated from the control treatment and the lowest benefit-cost ratio was also counted from the T₃ treatment at Gazipur and Jashore. The highest yield was found in T₂ (Zn 2.0 kg/ha) treated plot (1810 kg/ha) and the lowest in T₁ (Zn 0 kg/ha) plot (1540 kg/ha). The highest MBCR (15.42) was observed in T₂(Zn 2.0 kg/ha) treated plot and the lowest (9.77) in T₃ (Zn 4.0 kg/ha) treated plot.

Keywords: Benefit cost ratio, Cropping system, Improving nutrient, Soil fertility

Location: Pulses Research Sub-Station, Gazipur and Regional Agricultural Research Station, Jashore

Start Date: 00-00-2016

End Date: 00-00-2018

Program Area: Farming System

Commodity: Cropping System, Fertilizer

Objectives:

The present study was, therefore, undertaken to find out the requirement of zinc for Lentil-Mungbean-T.aus-T-aman rice cropping system and to improving nutrient and maintain soil fertility as well as nutrient balance in soil for sustainable crop productivity.

Methodology:

A study was conducted at the research field of Pulses Research Sub-Station, Gazipur and Regional Agricultural Research Station, Jashore during rabi 2016-17 to find out the requirement of zinc for Lentil-Mungbean-T.aus-T-aman rice cropping system and to improving nutrient and maintain soil fertility as well as nutrient balance in soil for sustainable crop productivity. The first crop of the pattern is lentil and the levels of zinc, T₁= Zn 0 kg/ha, T₂= Zn 2.0 kg/ha and T₃= Zn 4.0 kg/ha were included in this study. The levels of zinc (kg/ha) in the pattern are as follows-Lentil (0.0, 2.0, 4.0)-Mungbean (residual effect of zinc)-T.aus (0.0, 2.0, with and without mungbean residues)-T.aman (0.0, 1.0, with and without mungbean residues). The initial soil samples and final soil samples were collected from the experimental field of Gazipur and Jashore from 0-15 cm depth and the collected samples were analyzed for chemical properties using standard procedures in the laboratory. The experiment was laid out in a RCB design with 3 replications. The unit plot size was 3 m x 4 m. The lentil variety was BARI Masur-8. . Zinc was applied to Lentil and its residual effect was evaluated on the following crops. Zinc was applied as Zinc sulphate in the respective treatments plot during -final land 20-20-30-10-1 kg ha^-1 preparation. A blanket dose of fertilizer @ 20-20-30-10-1 kg ha^-1 of NPKS and boron was applied as basal. The sources of nutrients were urea, TSP, MoP, gypsum and Boric acid.. Lentils seeds at the rate of 30 kg ha^-1 were sown on 12 November 2017 at Gazipur and Jashore with a spacing of 30 cm line. Weeding and other intercultural operations were down as and where necessary. Lentil was harvested 28 and 29 February 2018 at Gazipur and Jashore. For all stages the standard crop management practices was followed to maintain the higher productivity of the pattern. Data on yield and yield contributing character were recorded 10 randomly selected plants in each plot. Grain/seed and straw/stover yield was recorded from the whole plot. Collected data were analyzed statistically using MSTAT-C computer software.

Source of Information: Annual Research Report 2017-2018, Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The yield of lentil (cv. BARI Masur -8) increased markedly due to Zn application. The highest seed yield was obtained from the plots receiving 2 kg Zn ha^-1 and the lowest from the Zn control. Again the seed of lentil differs significantly between three Zn levels that are 0, 2 and 4 kg Zn^-1 at Joydebpur. However, treatments differed significantly from other treatments. The 2 kg Zn ha^-1 treatment produced the highest seed yield 1233 kg ha^-1 at Joydebpur, showing 28% yield increased over control. Like seed yield, there was a significant and positive effect of added Zn on the stover yield of lentil and the lowest stover yield was recorded in Zn control plot. The maximum stover yield was obtained from the plot receiving 2 kg Zn ha^-1.

The yield contributing characters viz seeds pod^-1and pods plant^-1 of lentil was significantly influenced by Zn application. The highest seeds pod^-1and pods plant^-1 of lentil was 1.71 and 35.40 respectively and lowest by Zn control treatment 1.51 and 18.60. The highest plant height and 100 seed weight were recorded where Zn was applied @ 2 kg ha^-1 but this treatment was not significantly different from other treatments. The lowest pods plant^-1, plant height and 100 seed weight were attained by Zn control treatment. The highest MBCR (20.32) was observed in T₂ (Zn 2.0 kg/ha) treated plot and the lowest (7.2) in T₃ (Zn 4.0 kg/ha) treated plot. The results of the experiment are presented in Table 3.28. The highest plant height (45.13 cm) was found in T₂ treated plot and the lowest (41.46 cm) in T₃treated plot followed by T₁. The plant/m2 was statistically nonsignificant. The highest pod/plant (92.26) was observed in T₂treated plot followed by T₃ and the lowest (79.00) in T₁ treated plot. The highest yield was found in T₂ (Zn 2.0 kg/ha) treated plot (1810 kg/ha) and the lowest in T₁ (Zn 0kg/ha) plot (1540 kg/ha). Economic analysis for the nutrient management of lentil is presented in Table 3.29. The highest MBCR (15.42) was observed in T₂ (Zn 2.0 kg/ha) treated plot and the lowest (9.77) in T₃ (Zn 4.0 kg/ha) treated plot.

Knowledge Management: Report/Proceedings