Mansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-36858520170501Nitrate and Ammonium Balance in Fertilizing Wheat Grown on Sand Soil1831883724610.21608/jssae.2017.37246ENM. Abdel WahabSoils ,Water and Environment Res. Institute, Agric. Res. Center. Egypt.Manal AttiaSoils ,Water and Environment Res. Institute, Agric. Res. Center. Egypt.Amira HassanSoils ,Water and Environment Res. Institute, Agric. Res. Center. Egypt.Amira SalemSoils ,Water and Environment Res. Institute, Agric. Res. Center. Egypt.Journal Article20170429A field experiment was carried out on sandy soil of Agric. Res. Station, at IsmailiaGovernorate, Egypt lat. 30° 35' 41.9"N, long. 32° 16' 45.83" E. during two successive winter seasons of 2013/2014 and 2014/2015 to studied the response of wheat plant (Sakha 93) to nitrogen fertilization in two forms <em>i.e</em>., ammonium-N and nitrate-N in different ratios at the rate of (100 Kg N fed<sup>-1</sup>) as ammonium nitrate (AN) as a source of NH<sub>4</sub>-N and NO<sub>3</sub>-N and anhydrous ammonia (AA) as a source of (NH<sub>4</sub>-N).The obtained results showed that the most effective balance which gave the highest significant increases in all yield parameters was (12.5 Kg NO<sub>3</sub>-N+ 87.5Kg NH<sub>4</sub>-N ) comparing with Applying AN (50 Kg NO<sub>3</sub>-N+ 50 Kg NH<sub>4</sub>-N) alone and the average of improvements were 11.6% , 52.3% , 42.2 and 72.9 % for 1000 grain weight , grain yield , harvest index and yield efficiency, respectively.In addition, Applying (100 kg N/fed as AA) resulted in slightly increase in straw and biological yields compared with (12.5 Kg NO<sub>3</sub>-N + 87.5 Kg NH<sub>4</sub>-N ) but it was not significant and recorded increase about 35.5% and 39.8% ,respectively. The results indicated that application of AN in combination with AA (12.5 Kg NO<sub>3</sub>-N / 87.5 Kg NH<sub>4</sub>-N) exhibited the best treatment in enhancing the uptake of N,P, K and protein yield in wheat grains as it achieved 82.3% ,104.8%,84.9% and 82.3% increase ,respectively. Furthermore, increasing rate of NH<sub>4</sub>-N as anhydrous ammonia (100 kg N fed-1) in the absence of NO<sub>3</sub>-N gave the highest N and P uptake in straw by 99.8% and 72.6% increase for both elements. While, the highest value of K uptake in straw had increased by 53.7% with combined treatments of 75Kg AN+90 Kg AA /fed (12.5 Kg NO<sub>3</sub>-N + 87.5 Kg NH<sub>4</sub>-N) and significantly surpassed the single AA alone.However, usage of ammonium nitrate fertilizer in combination with anhydrous ammonia fertilizer had noticeable effect for lowering the quantity of ammonium nitrate fertilizer and improvement the yield quantity and quality of wheat plant.https://jssae.journals.ekb.eg/article_37246_680d07d4abd54db90cbff04f3462a55f.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-36858520170501Response of Cucumber (Cucumis sativus L.) to Various Organic and Bio Fertilization Treatments under an Organig Farming System.1891943724910.21608/jssae.2017.37249ENKh. El-HamdiSoils Department, Faculty of Agriculture, Mansoura University.A. MosaSoils Department, Faculty of Agriculture, Mansoura University.M. EL-ShazlySoil, Water and Environment Institute, Agriculture Research Center.Noha HashishSoils Department, Faculty of Agriculture, Mansoura University.Journal Article20170505A pot experiment was conducted outdoor at the Experimental Farm, Faculty of Agriculture, Mansoura University during the summer seasons of 2015 and 2016.to evaluate the positive interaction effects among different types of organic fertilization forms and levels alongside with bio fertilizer applications on quantitative and qualitative yield characteristics of cucumber grown under an organic farming conditions.. Thirty treatments were arranged in a split-split plot design with three replicates, which were the simple combination of three types of organic amendments (compost, FYM, and biochar), two rates of soil application (5 and 10 ton fed<sup>-1</sup>) and five types of bio fertilizer application forms i.e. (1) microbien + phosphorien, (2) microbien + phosphorien+ effective microorganisms (EM), (3) EM, (4) poultry manure extract, and (5) control (without biofertilizetion). Compost proved its effectiveness in improving yield characteristics, nutrients content and quality indices as compared with other organic amendments. The application level of 10 ton fed<sup>-1</sup> was the optimum rate for providing sufficient needs of plant during its whole growth stage. The combined biofertilization treatment (microbien + phosphosien+ EM) was the most effective treatment for improving quantitative and qualitative yield characteristics. The obtained results concluded that the integrated treatment of compost application at 10 ton fed<sup>-1 </sup>alongside with microbien + phosphosien+ EM biofertilization is recommended to produce the highest productivity and quality indices of cucumber yield grown on a sandy soil condition. https://jssae.journals.ekb.eg/article_37249_84fc8f081f5e92606a0a3c0b308b1e0f.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-36858520170501Impact of Potassium Fertilization and Cultivation Methods on Productivity and Water Use Efficiency of Sugarcane1952023724410.21608/jssae.2017.37244ENNadia HemeidSoils, Water and Environ. Res. Inst., Agric. Res., Center (ARC), Giza, Egypt.Basma RashwanSoils, Water and Environ. Res. Inst., Agric. Res., Center (ARC), Giza, Egypt.E. MohamedSoils, Water and Environ. Res. Inst., Agric. Res., Center (ARC), Giza, Egypt.F. KhalilSoils, Water and Environ. Res. Inst., Agric. Res., Center (ARC), Giza, Egypt.Journal Article20170507A field experiment was conducted at Shandaweel Agricultural Research Station, Sohag Governorate, Egypt (latitude 26° 34' N and longitude 31° 42' E and Elevation 61 meters from the sea level) for the two successive seasons of 2014/ 2015 (plant cane) and 2015/ 2016 (first ratoon), to examine the effect of potassium fertilization (0, 24 and 48 kg K<sub>2</sub>O fed<sup>-1</sup>) on sugarcane grown in clay loam soil under two cultivation methods, i.e. rows or on raised beds (water limited conditions). The experiment was laid out in a split plot design with four replicates. Results indicated that decreasing amount of irrigation water by growing sugarcane on raised beds caused significantly reduction in stalk height and milleable cane yield of the plant cane and 1st ratoon, while stalk diameter was significantly increased. N concentration in leaves and sugar yield were not significantly affected by cultivation methods in plant cane and first ratoon. The highest value of K % was obtained with growing on rows having normal water quantity in the 1st ratoon. Averageof CU (actual evapotranspiration) values were 5233 and 4721.5 m<sup>3</sup> fed<sup>-1</sup> in plant cane and 1st ratoon, respectively under growing on rows which were reduced by 25.66 and 29.77 % growing under raised beds conditions. Water use efficiency (WUE) was increased with decreasing irrigation water quantity under growing on raised beds conditions. On the other hand, applying 24 kg K<sub>2</sub>O fed<sup>-1</sup> significantly increased stalk height and milleable cane yield compared with control (without K) and 48 kg K<sub>2</sub>O fed<sup>-1</sup>. However, using 48 kg K<sub>2</sub>O fed<sup>-1</sup> gave the highest values of N and K% in leaves as well as stalk diameter and sugar recovery (SR %) in plant cane and 1st ratoon, except, purity (%) and sugar yieldwhich were significantly increased by thisrateinthe 1st ratoon only. Generally, the highest significant values of stalk height and milleable cane yield were recorded with application of 24 kg K<sub>2</sub>O fed<sup>-1</sup> under normal irrigation water amount growing on rows. Whereas, a high rate of potassium (48 kg K<sub>2</sub>O fed<sup>-1</sup>) under growing on raised beds gave higher values of sugar recovery (%), sugar yield, purity (%) and WUE in the1st ratoon.https://jssae.journals.ekb.eg/article_37244_16fad9162d217fcafa3f12dcedf5a15c.pdfMansoura University, Faculty of AgricultureJournal of Soil Sciences and Agricultural Engineering2090-36858520170501Comparitive of Some Microorganismus on Sandy Soil Fertility, and Wheat Productivity2032083726310.21608/jssae.2017.37263ENA. TahaSoil Sci. Dept., Fac. of Agric., Mansoura Univ., Egypt.T. El-ZeherySoil Sci. Dept., Fac. of Agric., Mansoura Univ., Egypt.Azza Abd El-AalSoils, Water & Environment research Institute, ARC, Egypt.Thanaa El-khadrwySoils, Water & Environment research Institute, ARC, Egypt.Journal Article20170516Field experiment was carried out at EL-Ismailia Governorate in the winter season of 2013-2014 to evaluate the role of Azolla pinnata, Anabaena Azolla, Pleurotus columbinus and Azotobacter sp in the presence of urea (46.5% N) as source of nitrogen fertilizer on growth and yield of wheat. It was found that total count <em>bacteria</em>, <em>fungi</em>, <em>azotobacter</em> and <em>algae</em> at different treatments were higher than those of other treatments especially with treatment (T16) of Mix only<em> which </em>gave the highest values of total bacteria count 4000 x 10<sup>3</sup> cfu g<sup>-1</sup> dry soil, followed by (T<sub>17</sub>) which recorded 3830 x 10<sup>3</sup> cfu g<sup>-1</sup> dry soil.Also for different microbes such as fungal, algae and N<sub>2</sub>-fixing bacteria counts it was noticed that treatment T17 (Mix of biofertilizer+ 75% of recommended dose of nitrogen) gave the more optimum results for different types of microbes count. The results showed that (T18) and (T17) recorded the highest values for IAA production which were (69.92 ad 68.7 mg ml<sup>-1</sup>g<sup>-1</sup> dry soil). Where T16 and T17 gave mostly higher N<sub>2</sub>-ase activity (32.36 and 21.97µ <strong>C<sub>2</sub>H<sub>4 </sub>g<sup>-1</sup>dry wt. hr<sup>1</sup></strong><strong>) </strong>at 120 days of incubation compared to other treatments.Also straw and grain yield was significantly increased with mixture +75% of recommended dose of nitrogen fertilizer (T17) (1365.04 g/m<sup>2</sup>) straw and (999.83 g/m<sup>2</sup>) grains. Also it was noticed that treatments of mixture of biofertilizer have a pivotal role in increasing N, P, and K uptake in straw with treatments T16, T16 and T17 respectively. Whereas with grain yield the treatments T17, T16 and T16 gave the highest values of wheat grain, respectively.https://jssae.journals.ekb.eg/article_37263_19459f56d0324b45e220adab95aa9395.pdf