The effect of phosphorus doses on cotton growth under full and deficit irrigation conditions

Water shortages and harmful effects of excessive fertilizer use are present in cotton production areas. This study was carried out three replications greenhouse conditions according to split plots randomized parcels examine some growth parameters (plant height, number leaf, amount chlorophyll, fresh weight dry weight) different phosphorus doses under full restricted irrigation conditions. Flash cultivar Gossypium hirsutum L. species used as plant material. Phosphorus dose 16, 24, 32 40 mg kg-1 applied the plants 100%, 66% 33% As a result, levels had statistically significant effect on all parameters, whereas except chlorophyll. In terms irrigation, it determined that water shortage did not cause decreases leaves, chlorophyll amount, weight. addition, has been effective uptake and, decrease weights after P24 level, tend increase these properties, albeit slightly.