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Field experiments were carried out at Sakha Agricultural Research Station in Egypt to compare the effect of the newly developed raised bed technique with different bed widths (RB130, RB100, RB80 cm) on wheat productivity to the conventional flat basin (FB) method during 2019/2020. The statistical analyses were carried out using a randomized complete block design. According to the results of statistical analysis, using RB130 cultivation gave the highest significant averages of water-saving (21.81%) and the highest averages of wheat 1000 kernels weight (50.05 g) over the FB method. However, no significant differences were found between RB130 and FB method, which produced the highest averages of grain yield, straw yield, and biological yield. Wheat sowing on FB gave the highest significant average of grain yield, straw yield, and biological yield than RB100, RB80 at 5% level of significance, but there were no significant differences in the number of kernels per spike, kernel weight spike, and harvest index ratio between wheat sowing on FB and RB130, RB100 or RB80. There were no significant differences in the number of kernels per spike, kernel weight spike, number of spikes per m2, straw yield, biological yield, and harvest index ratio at 5% level of significance between wheat sowing on RB130, RB100, RB80. But wheat sowing on RB130 produced the highest significant average of crop water productivity and grain yield than RB80 at 5%. Finally, according to the study findings, using raised beds cultivation resulted in saving irrigation water by 15~21% compared to a flat basin.

Anaerobic digestion is a biological degradation process used to convert organic wastes from Animals and plants into biogas. Produce biogas from these wastes gives a new and clean energy and good organic fertilizer as a method to protect environment from pollution by wastes.In this paper, a continuous flow family scale biogas digester was designed and constructed in Abiss, Alexandria governorate at the year of 2011. The study was conducted to develop biogas digester for farmer family scale. It was designed with installed capacity of cattle dung from 5 to 6 heads or about 100.0 kg/dung/day. The digester was operated in mesophilic conditions of 22 to 27 °C temperature range at three levels of average total solid content (TS) 6 %, 10 % and 17 % under one month hydraulic retention time (HRT) for each treatment. The experiments were conducted to investigate the production of biogas (BP) rate from Cattle wastes by using anaerobic digestion process. The results indicated that, the biogas production rate was about 3 m 3 /day at average

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