A model has been used to simulate potassium (K) uptake by wheat in a pot culture experiment. Three soils from India, namely Alfisol, Inceptisol and Vertisol, were differentially K exhausted by Sudan grass (Surghum vulgare var. Sudanensis) for a period of 280 days and were used to simulate potassium uptake by wheat (Triticum aestivum) and also to predict the amounts of K released or fixed during...

In this report, we present a geometric method for representing the classical root sensitivity function of linear time-invariant systems. The method employs gain plots that expand the information presented in the root locus plot in a manner that permits determination of both the real and imaginary components of the root sensitivity function by inspection. • ' f | ' i ;^ H-1 ;• "K I. The Root Sen...

Silicon (Si) is the second most abundant element in earth crust constituting 27.7 per cent. The beneficial effects of Si includes mitigation various forms abiotic and biotic stresses. Rice (Oryza sativa), a typical accumulator, takes up actively form silicic acid. There are three transporters involved uptake viz, LSi1, LSi2 LSi3. Influx transporter (LSi1) acid from soil solution mediates its tr...

We analyze the asymptotic distribution of roots Charlier polynomials with negative parameter depending linearly on index. The cluster curves in complex plane. determine implicit equations for these and deduce limiting density root supported curves. proof is based a determination Cauchy transform specific region careful application saddle point method. obtained result represents solvable example...