Record ID No. |
891 |
Author(s) |
Zahran,F.A., El-Mersawy,E.M., El-Ghani,H.S.A , 1997 |
Affiliation |
Soil, Water and Environmental Res. Institute, Agric. Res. Center, Giza, Egypt. |
Title |
Effect of nitrogenous and biofertilizers on late wilt, downy mildew diseases and yield of maize |
Source. Vol.(no):Page |
Annals-of-Agricultural-Science,-Moshtohor. 35(4): 2641-2652p. |
Categories |
Mycorrhiza General |
Subjects |
Soil plant relations |
Sub-subjects |
Manuring |
Host |
Zea mays, Peronosclerospora sorghi |
Organism |
Cephalosporium maydis, Gaeumannomyces graminis, Azospirillum sp., Azotobacter sp., Bacillus megaterium var. phosphaticum, Pseudomonas, Phosphorin comprised B. megaterium var. phosphaticum |
Country |
Egypt, Africa |
Abstracts |
Two field experiments were conducted in Egypt during 1996 and 1997 to evaluate the effects of N fertilizer (60, 75, 90 and 105 kg/fed) and biofertilizers (microbin, phosphorin or microbin + phosphorin) on the yield, grain chemical composition (P and K), and infection by downy mildew (Peronosclerospora sorghi) and late wilt (Cephalosporium maydis [Gaeumannomyces graminis var. tritici]) in maize cultivars Three Way Cross (TWC) 310 and Balady, respectively. The treatments included each of the different N rates combined with microbin, and N at 105 kg/fed combined with microbin and microbin + phosphorin. Microbin comprised Azospirillum sp., Azotobacter sp., Bacillus megaterium var. phosphaticum, Pseudomonas sp. and Mycorrhiza sp. Phosphorin comprised B. megaterium var. phosphaticum. The application of N at 75 kg/fed + microbin to TWC 310 resulted in the highest significant increase in plant height, grain weight, ear weight/plant and grain yield. On Balady, the application of N at 90 kg/fed + microbin gave the best results. Results showed that application of N at 90 kg/fed + microbin produced positive effects on grain protein, P and K contents, and resulted in the attainment of the recommended N rate of 105 kg/fed. Late wilt incidence markedly decreased with N at 90 kg/fed + microbin. N application at 75, 90 and 105 kg/fed, in combination with microbin and microbin + phosphorin, reduced late wilt infection. Maize seeds treated with microbin + phosphorin showed the lowest downy mildew occurrence percentage under N at 60, 75, 90 and 105 kg/fed. |