Performance of Integrated Weed Management Practices in Rabi Groundnut on Post Harvest Soil Analysis and Soil Enzymatic Activity

Author: N. Charitha*, M. Madhavi, T. Ramprakash and G. Pratibha

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Abstract

A test was carried out to examine the effect of included weed control practices on weed growth and yield of groundnut at College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Hyderabad, during Rabi 2020-21. The test consisted of ten treatments laid out in randomised block layout replicated thrice. Different weed management practices had no effect on pH, EC, OC, available nitrogen, phosphorus and potassium in soil after harvest of groundnut. Among pre-emergence herbicides the urease and dehydrogenase activity was recorded highest with the diclosulam 86% WDG 26 g ha-1 fb intercultivation at 20 DAS and in the post-emergence treatments intercultivation fb hand weeding at 20 and 40 DAS recorded the highest activity in both 30 and 60 DAS. Acid and alkaline phosphatase was recorded highest with the pyroxasulfone 85 % WDG 127.5 g ha-1 fb intercultivation at 20 DAS among the pre-emergence herbicides and in the post-emergence treatments intercultivation fb hand

Keywords

Acid phosphatase, Alkaline phosphatase, Dehydrogenase, Microbial population and Urease.

Conclusion

After groundnut harvest, different weed control strategies had no effect on pH, EC, OC, accessible nitrogen, phosphorus, or potassium in the soil. The urease and dehydrogenase activity was best in pre-emergence herbicides with the diclosulam 86 percent WDG 26 g ha-1 fb intercultivation at 20 DAS, and in post-emergence herbicides with intercultivation fb manual weeding at 20 and 40 DAS in both 30 and 60 DAS. Among the pre-emergence herbicides, pyroxasulfone 85 percent WDG 127.5 g ha-1 fb intercultivation at 20 DAS recorded the highest activity, while among the post-emergence herbicides, intercultivation fb hand weeding at 20 and 40 DAS showed the highest activity. At 60 DAS there was no significant difference in acid and alkaline phosphatase activity among the different weed management practices followed.

References

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How to cite this article

N. Charitha, M. Madhavi, T. Ramprakash and G. Pratibha (2022). Performance of Integrated Weed Management Practices in Rabi Groundnut on Post Harvest Soil Analysis and Soil Enzymatic Activity. Biological Forum – An International Journal, 14(1): 1127-1130