Indexing

Response of Pre and Post Emergence Herbicides on Nutrient uptake by Chickpea and Weeds

Author: Sanju Kumari, Kanhaiya Lal and Birendra Kumar*

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Abstract

Generally, rabi pulses grown in marginal crop land under minimal management. Initial slow vegetative phase provides more scope to weed growth. Corp weed competition leads to distribution of resources which cause huge losses to the crop yield. To understand resources distribution in chickpea a field experiment was laid out at BAU research farm, Sabour during rabi of 2019-20 to assess the effect of various pre and post-emergence herbicides in chickpea. The experiment consisted of 13 treatments i.e. pendimethalin @ 1000 g a.i. ha-1 PE fb 1 HW, oxyfluorfen @ 100 g a.i.ha-1 PE fb 1 HW, imazethapyr @ 40 g a.i. ha-1 PoE, quizalofop-ethyl @ 50 g a.i. ha-1 PoE, topramezone @20 g a.i. ha-1 PoE, topramezone @ 25 g a.i. ha-1 PoE, clodinafop-propargyl + Na-acifluorfen @ 500 g a.i. ha-1 PoE, pendimethalin @ 1000 g a.i. ha-1 PE fb imazethapyr @ 40 g a.i. ha-1 PoE, pendimethalin @ 1000 g a.i. ha-1 PE fb quizalofop-ethyl @ 50 g a.i. ha-1 PoE, oxyfluorfen @ 100 g a.i. ha-1 PE fb imazethapyr @ 40 g a.i.

Keywords

Chickpea, weed management, topramezone, nutrient uptake, herbicide.

Conclusion

On the basis of field trial findings, it can be concluded that application of herbicides like pendimethalin @ 1000 g a.i. ha-1 PE fb 1 HW, oxyfluorfen @ 100 g a.i. ha-1 fb 1 HW, topramezone @ 25 g a.i. ha-1 and topramezone @ 20 g a.i. ha-1 results in significantly higher nutrient (N, P and K) uptake and in case of weeds, these herbicidal application results in the minimum nutrient (N, P and K) uptake by weeds. Such herbicides were successful in controlling weeds resulting in lower crop weed competition ultimately leading to higher nutrient uptake by chickpea and lowering down the nutrient uptake by weeds.

References

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How to cite this article

Kumari, S., Lal, K. and Kumar, B. (2021). Response of Pre and Post Emergence Herbicides on Nutrient uptake by Chickpea and Weeds. Biological Forum – An International Journal, 13(3a): 128-133.