TY - SER AU - Ali,E.A TI - Grain sorghum productivity in sandy calcareous soil under modern irrigation systems using different levels of farmyard manure and mineral nrrrogen fertilizer KW - Sprinkler irrigation KW - Sorghum KW - Microirrigation KW - Sandy soils N1 - Includes references N2 - This work was carried out at EI-Wadi EI-Assiuty farm, faculty of Agriculture, Assiut University,Egypte in 2003 and 2004 seasons to study the response of two grain sorghum genotypes (Dorado and Shandawil 6) to new systems of irrigation ( drip and sprinkler) and farmyard-mineral fertilizer in sandy calcareous soil. Each season contain two experiments. One experiment subjected to Drip Irrigation and the other to Sprinkler one. Each experiment contained two variables in split plot design with three replications UR - http://nile.enal.sci.eg/EALE/2007/MUJAS/3207/7/5083.pdf ER -