I want to screen genotypes of lentil for phosphorous use efficiency in hydroponic system, but i am unable to find the optimum concentration of phosphorous with and without it. So, please can anybody help me?
it is necessary to apply different concentrations some of them less than the p concentration of Hogland solution other more than it , for different letile cultivares , the determing concentration of P and some other nutrients for example N , K , depending on your proposal .Then determining nutrient balance index for each treatment (or applied concentration of P depending on Diagnosis integrated Recommended systum(DRIS) The les value of NBI (nutrient balance index ) refers to the best concentation.Please see or read reseaeches about NBI and DRIS.