Effect of organic and bio-fertilization on tomato production

An experiment was conducted at Siwa oasis research station, Desert Research Center (Khimisa Farm) during two consecutive seasons of 2013 and 2014, to evaluate the effect of some agricultural friendly treatments included application of biofertilizers (nitrobin, phosphorin and potassumage) and natural materials as a source of phosphorus and potassium on tomato productivity as compared with conventional treatment. The results showed that, conventional treatment significantly increased growth characters, yield and its component compared with all other treatments in both seasons. However, nitrobin biofertilizer enhanced tomato growth characters, ie., plant height, leaves number, plant fresh weight especially when combined with phosphorin and potassumage as compared with control or without biofertilizer treatments. Also, biofertilzers treatments involved nitrobin (T5) alone or combined with phosphorin and potasumage (T7,T9 T10 and T11) enhanced tomato yield per plant compared with control (T3) or without biofertilizers (T2) , phosphorin alone (T4), potassumage alone (T6) and phosphorin + potassumage (T8) in both seasons. Increasing tomato yield as a percent to conventional treatment (T1) were (67.8, 65.5, 62.7, 68.1, 60.8, 69.5, 63.3, 73.7, 72.8, 79.6) and (68.8, 64.9, 71.0, 76.8, 68.0, 77.9, 70.7, 80.9, 82.9, 84.0) for (T2, T3, T4, T5, T6, T7, T8, T9, T10 and T11) on two seasons respectively.