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Integrated Nutrient Management on Lentil (2017 - 2018)

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

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

A. QUDDUS
Pulses Research Centre, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

A field experiment was conducted at the Pulse Research Sub-station of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the rabi season of 2016-17 to evaluate the effect of growth and yield of lentil with organic and inorganic nutrients and to determine the optimum rate of nutrients of lentil. Five different combinations of nutrients viz. FRG 2012, 75% FRG + 25% CD, 50% FRG + 50 % CD, 75% FRG + 25% PM, 50% FRG + 50% PM were included in the study with one control (Native fertility). The effect of nutrient combinations on the plant growth parameters was not significant but yield characters varied significantly. The higher seed yield was produced (2016-2017) in the treatment 75% FRG +25% PM (935 kg/ha^-1). Average of two years the heights seed also produced in treatment T₄ = 75% FRG +25% PM (1017 kg ha^-1). It may be concluded that 75% of the recommended doses of inorganic nutrients and 25% of organic sources of nutrients from poultry manure is the best treatment combination to produce lentil in the grey Terrace Soil (AEZ 28) of Gazipur.

Keywords: Poultry manure, Integrated nutrient management, Lentil

Location: The field experiment was conducted at the research farm of Pulse Research sub-station, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Start Date: 00-00-2015

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer and manures, Lentil

Objectives:

The experiment was undertaken to determine the optimum dose of nutrients to achieve a higher yield of lentil.

Methodology:

The field experiment was conducted at the research farm of Pulse Research sub-station, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the rabi season of 2015-16 and 2016-17. The soil characteristics of the area are the Grey Terrace Soil (AEZ 28). The initial soil samples collected from the experimental plot from a depth of 0-15 cm and were analyzed in the laboratory following standard methods. Initial values of some important chemical parameters of the soil of the experimental field are presented in table 1.Nutrient status of cowdung and poultry manure applied in the experimental plots are shown in Table 2. The trial consisted of six nutrient treatments such as T₁= FRG 2012, T₂= 75% FRG + 25% CD, T₃= 50% FRG + 50 % CD, T₄= 75% FRG + 25% PM, T₅= 50% FRG + 50% PM and T₆= Control. The experiment was laid out in a Randomized Complete Block design with 3 replications. The unit plot size was 4m×3m. Nutrients N-P-K-S-Zn-B were supplied from Urea, TSP, MP, Gypsum, Zinc sulphate and Boric acid, respectively. All the fertilizers were applied during the final land preparation. The variety was BARI Masur-7. Seeds were sown on 18 November 2016 at a rate of 30 kg ha^-1 continuous in line at a depth of 2 to 3 cm below the soil surface. One irrigation was applied immediately after seed sowing. Intercultural operations such as thinning, weeding, applying insecticides were done as and when necessary. The mature plants of lentil were harvested on 3^rd March, 2017. Data on growth characteristics and yield parameters were recorded and analyzed statistically.

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

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The plant height did not vary significantly among the treatments except the control treatment. Plant height was the highest in T₃ (50% FRG + 50 % CD) in all the growth stages followed by T₅ (50% FRG + 50% PM) which is statistically similar to other nutrient treatments and the lowest was recorded in the control treatment. This trend was observed at all the growth stages up to maturity. The plant height generally increased progressively up to 70 DAS. Application of Cowdung and poultry manure probably enhanced plant growth along with chemical fertilizers. The number of branches/plant did not vary significantly among the control and nutrient treatments up to 50 DAS. At 60 and 70 DAS, nutrient dose following FRG 2012 produced a higher number of branches per plant although no significant difference was observed even with variable doses of nutrient treatments except the control. The lowest number of branches/plants was produced in the control treatment. The total dry matter of lentil did not vary significantly at the early stage of growth (30 and 40 DAS) but differ significantly at the later growth stages (50 and 60 DAS). The cause of the difference in dry weight at this stage might be the variation in pod setting as lentil plants received different doses of nutrients. At maturity, the highest dry matter was produced by the plants receiving nutrients following T₁ (FRG, 2012) followed by T₂ (75% FRG + 25% CD) and T₄(75% FRG + 25% PM) and control plants produced the least amount of dry matter receiving no nutrients. The plant height did not vary significantly among the treatments except the control treatment. Plant height was the highest in T₁30.73cm (FRG 2012) which was statistically at par with other treatments except for control and the lowest height was recorded in T₆ (27.53 cm). Significant variation in pod/plant and seed yield of lentil was observed as influenced by the application of variable doses of nutrients. The highest number of pod/plant produced in treatment T4 (41.87) was statistically identical with T₃ (35.93 and T₂ (35.47). The lowest number of pod/plant was recorded in T₆ (32.80). Mohammed et al. (2016) observed the positive effect of poultry litter on the number of pods/plants. The number of seed/pod also differed significantly among the treatments and the highest was in T₁ (2.00) while the lowest in T₆(1.63). Vishnoiet al. (2013) found that the number of seeds/pod was significantly influenced by organic and inorganic sources of phosphorus in lentil.100-seed weight ranged from 1.00 to 2.20 g and did not differ significantly among the treatments. The highest Seed yield of lentil was recorded in T4 (935.67 kg/ha^-1) which was statistically similar with T2 (893.33kg/ha^-1) followed by T3 (873.00kg/ha^-1) and T5 (867.67kg/ha^-1). The yield obtained from T1 (FRG, 2012) was 749.00kg/ha and the least in control T6 (435kg/ha^-1) as plants were grown without nutrients with its native soil fertility. The highest stover yield was produced in T₂ (1877.33 kg ha^-1) followed by T₄ (1801.66) and the lowest in T₆ (1259.33 kg ha^-1). An average of two years of T₄ treatment produced the highest seed yield (l017 kg/ha^-1) followed the T₂ (987 kg/ha^-1) and T₁ (927 kg/ha^-1). The lowest mean yield (522 kg/ha^-1) was recorded in the T6 treatment. The effect of fertilizers in combination with cowdung and poultry manure influenced the growth and yield of lentil. The higher yield was produced from, 75% FRG + 25% PM. Average of two years treatment T₄(produced the highest seed yield 1017 kg/ha^-1 followed the treatment T₃ (987 kg/ha^-1)and T₄ (927 kg/ha^-1). It may be concluded that 75% of the recommended doses of inorganic nutrients and 25% of organic sources of nutrients from poultry manure is the best treatment combination to produce lentils in the grey Terrace Soil (AEZ 28) of Gazipur.

Knowledge Management: Report/Proceedings