Innovative organic farming in india

In this article general overview of research progress in the field of organic agriculture in India was given. This include revalidation of traditional organic practices, invent/discover and commercial production technology for organic inputs and research on organic systems. Some of the future directions of organic research in Indian was also discussed

Herring-Flicker coupling and thermal quantum correlations in bipartite system

In this letter we study thermal quantum correlations as quantum discord and entanglement in bipartite system imposed by external magnetic field with Herring-Flicker coupling ie. $J(R)=1.642 e^{-2 R} R^{5/2}+O(R^{2}e^{-2R})$. The Herring-Flicker coupling strength is the function of $R$, which is the distance between spins and systems carry XXX Heisenberg interaction. By tuning the coupling distance $R$, temperature and magnetic field quantum correlations can be scaled in the bipartite system. We find the long sustainable behaviour of quantum discord in comparison to entanglement over the coupling distance $R$. We also investigate the situations, where entanglement totally dies but quantum discord exist in the system. The present findings in the letter may be useful for designing quantum wires, data bus, solid state gates and quantum processors.Comment: 5 pages, 3 figure