Stability of positive stationary solutions to a spatially heterogeneous cooperative system with cross-diffusion

In the previous article [Y.-X.Wang and W.-T.Li, J.Differential Equations, 251 (2011) 1670-1695], the authors have shown that the set of positive stationary solutions of a cross-diffusive Lotka-Volterra cooperative system can form an unbounded fish-hook shaped branch $Gamma_p$.In the present paper, we will show some criteria for the stability of pos

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Potassium availability and soil extraction tests in agricultural soils with low exchangeable potassium content

Low application of fertilizer potassium (K) in intensive agriculture leads to a gradual decrease and, afterwards, to a steady state of soil K determined by tests which are based on soil exchangeable K (Kexch) extraction.In this situation, non-exchangeable K (Knon-exch) is being released and therefore real plant availability does not necessarily cor

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