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Optimization of Spacing and Effect of Organic and Inorganic Phosphorus Level for Growth and Yield of Irrigated Blackgram

Author: Kousalya Arumugam, Sharmili K., Balaganesh B., Udhaya Kumar K., Gobikashri N. and Jennifer Flora G.

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Abstract

Pulses are second important sources of human food next to cereals and also important crop to meet the dietary part of vegetarian. The productivity of pulses in India is below the global average mainly due to improper fertilization and crop spacing. In order to improve the productivity of blackgram a field experiment was conducted to study the effects of spacing and different levels of organic and inorganic phosphorus during Rabi season of 2022-23 at Karunya Institute of Technology and Sciences, Coimbatore. The experiment was laid out in Randomized Block Design which was replicated thrice and having 10 treatments consisting of 5 different spacing viz., 20 × 20 cm2, 25 x 25 cm2, 30 x 30 cm2, 35 x 35 cm2 and 30 x 10 cm2 and 2 level of phosphorus viz., 100% RDP through inorganic (DAP) and 50% RDP through inorganic (DAP) + 50% RDP through organic (Vermicompost). According to the findings, the application of 100% RDP through inorganic + 20cm × 20 cm resulted in the higher growth and yield attributes. Grain yield (964 kg/ha), and stover yield (2554 kg/ha) were also found to be higher in 100% RDP through inorganic + 20cm × 20 cm resulting in higher gross return (62660 Rs/ha ), net return (41858 Rs /ha ) and B: C ratio (2.01).

Keywords

DAP, Vermicompost, RDP, Blackgram, Yield

Conclusion

From the investigation it can be recommended that growing of blackgram with a spacing of 20cm × 20cm along with the application of 100% recommended dose of phosphorus (T1) improves crop growth, yield and income.

References

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How to cite this article

Kousalya Arumugam, Sharmili K., Balaganesh B., Udhaya Kumar K., Gobikashri N. and Jennifer Flora G. (2023). Optimization of Spacing and Effect of Organic and Inorganic Phosphorus Level for Growth and Yield of Irrigated Blackgram. Biological Forum – An International Journal, 15(5): 507-511.