Abstract

Sabbour Aziz, Qandil Darrag and Ouda Khalil

Three field experiments were conducted during 2008, 2009 and 2010 seasons at the Experimental Farm, Faculty of Agriculture, Suez Canal University at Ismailia to study the effect of mineral and biofertilization of phosphorus and foliar with potassium on yield, its attributes and seed quality of new sesame variety (Taka 2 cv.) in newly reclaimed sandy soils of Ismailia, Egypt. The experimental design was split plots with five replications. Four levels of mineral and bio phosphorus fertilizer (57, 76, 95 and 76 kg P2O5/ha plus Phosphorin biofertilizer containing phosphate dissolving bacteria) were arranged randomly in the main plots and three concentrations of potassium sulphate as foliar spraying namely water (control), 1% and 2% were distributed at random in the sub plots. Increasing phosphorus fertilizer rate up to 95 kg P2O5/ha significantly increased plant height, fruiting zone length, number of branches and capsules/plant, 1000-seed weight, seed yield/plant, seed oil content (%) and seed and oil yields/ha of sesame. Appling biofertilizer (Phosphorin) plus 76 kg P2O5/ha exceeded significantly all mineral phosphorus levels (57, 76 and 95 kg P2O5/ha) in the aforementioned characters except number of branches/plant. Increasing potassium concentration as foliar spraying up to 2% induced significant increases in all the studied characters.