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Inbuilt Mechanisms for Managing Weeds in Conservation Agriculture Systems: A Revisit

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Conservation Agriculture: A Sustainable Approach for Soil Health and Food Security

Abstract

Conservation agriculture (CA) is a cultivation practice encompassing nil disturbances to the land and soil cover to protect soil biota with efficient nutrient cycling through diversified crop rotation. The primary aim is to protect the production resources from the current soil-degrading practices. The present-day practices no longer act as soil biome vitalizers, but rather pose irreparable damage to soil health agricultural biodiversity. Jethro Tull, the father of tillage, believed and advocated that tilling the soil has great powers to support vegetation, and tillage is practiced since ages not only to nourish the plants but also to make the soil free from weeds. However, soil erosion is an inevitable bonus to it. The CA pillars have inherent mechanisms for weed management too. Non-inversion tillage minimizes the turnover of deep layer weed seeds to the surface, surface remaining weed seeds becoming prey to predators, and, to some extent, the chemicals released from crop/cover crop residue inhibit weed seed germination although these systems are too complex to explain. In this chapter, we have attempted to throw some lights on the agronomy aspects of CA and weed management in these systems.

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Ramesh, K., Jayaraman, S., Bhaskar, S. (2021). Inbuilt Mechanisms for Managing Weeds in Conservation Agriculture Systems: A Revisit. In: Jayaraman, S., Dalal, R.C., Patra, A.K., Chaudhari, S.K. (eds) Conservation Agriculture: A Sustainable Approach for Soil Health and Food Security . Springer, Singapore. https://doi.org/10.1007/978-981-16-0827-8_4

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