Effect of bio and Mineral fertilization on naked barley under rainfed and supplemental irrigation in matrouh area, Egypt
2011
Abd EL-Aziz, M.A.S.
Two experiments were carried out during the 2006/07 and 2007/08 winter seasons at EI- Hammam area, Matrouh, Egypt to investigate the influences of supplemental irrigation (SI) and fertilization packages under rainfed conditions on productivity of naked barley (Hordeum vulgare L.). Each experiment included 28 treatments which were; four amounts of supplemental irrigation: 252; 378 and 504 m3/ fad. and seven fertilization packages:NoPoKo, 400 g Microbein (Bio-N), N20 P7.5 K12, N20 P7.5 K12 + Bio-N/ fad., N4o P15 K24, N4o P15 K24+Bio-N/ fad. and N8o P3OK48. Results showed significant differences among supplemental irrigation treatments in all the studied traits in both seasons. Also, results clearly showed that grain, straw and biological yields were increased by each increment in amount of water supply from 252 to 378 then to 504 m3/ fad. in the two seasons. It is evident that grain yield increased by 23.0, 82.7 and 111.1 % and by 22.9, 81.7 and 110.8 % in the first and the second seasons, respectively. Results indicated that application of 20 Kg N + 7.5 Kg P2O5 + 12 Kg K2O/fad + Bio-N gave the tallest plants, longest spikes, heaviest 1000-grain weight, as well as, the highest values of grain, straw, biological and protein yields, as well as, highest values of water use efficiency compared to the other tried fertilization packages in both seasons. Under rainfed conditions at El-Hammam area, NWC of Egypt, it could be obtained high gain productivity of naked barley economically, by adding 504 m3/ fad as a supplemental irrigation and 20 kg N +7.5 kg P2O5 + 12 kg K2O + 400 g Microbein (Bio-N)/ fad.
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