Response of Jerusalem artichokePlants to Organic Fertilizers and Humic Acid in Reclaimed Soil at South Egypt
Middle East Journal of Applied Sciences
This work was carried out during the two successive summer seasons of 2018 and 2019 at Sohag Governorate, Egypt under reclaimed soil to study the interaction between organic manure and humic acid application methods on the productivity, growth, yield and its components as well as the chemical tubers content of Jerusalem artichoke plants. This study included 12 treatments which were the combinations between four rates of organic manure (0, 5, 10 and 15 ton/fed) and three humic application
... application methods (spraying, soil addition and both of them together). The obtained results indicated that, the organic manure at rate 15 ton/fed gained the highest plant, No. of stems/plant, fresh weight/plant, total yield, average tuber weight and dry matter of tuber percentage as well as, chemical contained of NPK and inulin in tubers compared to other rates in both seasons. Application of humic acid increased the most parameters under this study in both seasons. Spraying humic acid + soil application given superior results in most parameters compared to spraying or soil addition as sole treatment. The interaction between organic manure rates and humic acid applications significantly affected growth, yield and its components. The best treatment observed in this study was blend of organic manure application at rate of 15 ton/fed. with the use of humic acid as spraying plus soil addition treatment in most studied parameters in both seasons.