Winged bean [Psophocarpus tetragonolobus (L.) DC) has been called an underutilized crop with the potential to become a major protein crop for the tropics and subtropics. As with soybean [Glycine max (L.) Merr.) the introduction of winged bean to warm arid regions will be affected by tolerance to salinity. In this study a prolific Sri Lankan winged bean accession ('SLS47') and two soybean cultivars ('Jackson' and 'Lee') were grown in pots of sandy soil amended with NaCL to give saturated paste electrical conductivities (EC) of 0.5, 2.5, 4.5, 6.5 and 8.5 dS m-•. At 0.5 dS m-•, dry matter accumulation (0.84 g plant-•), nodule mass, (32 mg plant-•), and tissue N (24 mg N g-1 ) of winged bean were similar to those of both soybean cultivars. At 65 d after planting, however, specific nitrogenase activity by acetylene reduction assay was much lower for the winged bean (60 ~tmol ethylene g-•h-1 ) than for the soybean (160 to 190 ~tmol ethylene g-•h-1 ). The results indicated that winged bean was at least as tolerant as Lee soybean and more tolerant than Jackson. Though stunted, at 8.5 dS m-• winged bean showed significantly less foliar injury than did either of the soybean cultivars. For the soybean, the tissue N content was unchanged, but for winged bean it increased significantly with increasing salinity; suggesting that dry matter accumulation, especially by winged bean, was more sensitive to salinity than to N2 fixation. ----------------Additional index words: Sodium chloride toxicity, Glycine max (L.) Merr., Psochocarpus tetragonolobus, Saline-sodic soil, N 2 fixation, Acetylene reduction.----------------

Two field experiments were carried out at Ismailia Exp. Sta., Agric. Res. Center, Ismailia governorate, during 2007/2008 and 2008/2009 seasons to study the influence of zinc application on growth, yield and yield components of some wheat (Triticum aesitivum L.) cultivars (Sakha-93, Sakha-94, Giza-168, Gemmeiza-9 and Gemmeiza-10). Three levels of Zn were applied: 0.0 (control), 1.5 and 3.0 kg Zn per Fed. Results showed that positive significant effects on growth traits, grain yield and its attributes was achieved by fertilizing wheat cultivars with 3.0 kg Zn/fed. Also, application of 3.0 kg Zn/fed. showed the highest values of P, K, Zn and Fe of shoot content. The largest flag leaf area was that of Sakha-93 and Gemmeiza-9 while, Giza-168 had superior shoot dry weight. Sakha-94 cultivar significantly surpasses all cultivars in plant height, while Gemmeiza-10 gave the highest number of spikes/m 2 , while 1000-grain weight of Sakha-93 was the largest. The highest grain yield was achieved with Sakha-94 and Gemmeiza-9.

(Fig. 4). Le (Fig. 3); -a Ca increase in the needles (Fig. 3) and particularly in the roots (Fig. 4) (Fig. 3) and also by the root analyses (Fig. 4).The Nordmann fir behaves as a &dquo;nitratophobic&dquo; species that has difficulty in reducing the absorbed nitrate nitrogen. At the needle level, chlorosis is characterized by a decrease in the HCF extractable Fe and Mg contents if the plant control cultivated in ammoniacal conditions is considered as reference.Moreover, the common feature of the two kinds of chtorosis is the accumulation of a large quantity of calcium at the root level. This is due to the formation of calcium carbonate coatings (Figs. 5 and 6) resulting from CaCO 3 precipitation from the bicarbonate-rich solutions as shown by the carbon isotope analyses.

The present investigation was carried out during 2006/07 and 2007/08 seasons, in Agric. Exp. Res. Station, Fac. Agric., Cairo University, Giza, Egypt. The research work aimed to study the influence of different levels of chemical fertilization on yield and yield attributes on faba bean (Vicia faba, L.). The examined fertilizer rates were 0, 15 and 30 kg N/fad. , 0, 12and 24 kg K2O/fad. and 0, 500 and 1000 g/fad as edit micronutrients compound called (Composite Voliavid). There were progressive augmentations in seed yield/fad due to increasing the level of nitrogen fertilization from 15 to 30 kg N/fad. Potassium fertilization application had a significant effect on seed yield /fad. Data also showed that seed yield / fad were significantly increased with increasing the level of K fertilization, where 24 kg K2O/fad Level surpassed 12 kg K2O/fad. It is also obvious that the high dose of micronutrients compound (1000g /fad) significantly increased seed yield of faba bean /fad as compared with the lower one (500g/fad). In conclusion the data showed that the best production of faba bean was achieved by 30kg N, 24 kg K2O with spraying plants by micronutrients (Compound Voliaved) in 1000 g / fad dose.

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