Improving Productivity of “Le-Conte” Pear Trees Grown in New Reclaimed Soils Using Natural Elements Mixture and Algae Extract

This study was carried out at Sedyghazi private orchard located in Abu Ghaleb road 164 kilometer from Cairo to Alex desert road, Giza, governorate Egypt during two seasons (2019 and 2020) on thirteen - year old Le-Conte pear trees budded Pyrus communis rootstock, planted 3.5 × 4 meters apart grown sandy soil under drip irrigation system (EC= 3.40 dS m−1). . The experiment arranged a spilt plot design, the main plots were represented by four levels of foliar application Amphora coffeaeformis algae extract (AC1= 0, AC2= 250, AC3= 500 AC4= 1000 ppm) sub split Natural Elements Mixture included three (NEM1= NEM2 = 2.0 NEM3 =4.0 kg/tree /year). Data revealed that, (2.0 kg/tree/year) gave more or less similar values as those level (4.0 especially for yield, TSS, TSS/acid ratio, total sugars, N, K, Fe, zn Mn leaf content. Meanwhile, fruit chemical properties, macro & micronutrients proline content significantly increased gradually increasing up ppm. In most cases difference between AC (500 insignificant. Concerning interaction, treatments (NEM2x AC3), AC4), (NEM3x AC3) AC4) stimulating effects characters. So, sufficient helping alleviate salinity stress highest quality nutritional status.