This review focuses on conservation agriculture (CA) and its effects on increasing the soil’s resistance to erosion. CA involves minimum soil disturbance (minimum tillage/ no-till), diversified crop rotation, and maintenance of the soil cover to increase soil fertility and reduce erosion. CA reduces soil loss by up to 90% and water erosion by approximately 50 to 70% from runoff as it increases the health of the soil, yield of crops, and water-retention capacity of the soil by incorporating soil organic matter and promoting biodiversity. Crop rotation prevents the replenishment and depletion of soil nutrients by atmospheric fixation of nitrogen/biological nitrogen fixation. Controlled traffic farming (CTF) is a new strategy in which traveling by agricultural equipment is minimized to preserve the integrity of the land and soil, and compaction is reduced. It has advanced tools such as remote sensing (RS) to assess the erosion of soil and to evaluate the effectiveness of such practices in place. They enhance farmers’ capacity for better management of the resources and access to accurate information about the soil. Even though the previously discussed practices have numerous benefits, there are shortcomings and limitations to implementing CA practices for enhanced resistance of the soil to erosion. CA entails a special tool, the affordability of which may not be accessible to small-scale farmers or farmers in developing countries. In addition, the deployment of advanced methods such as RS requires investment in technology and infrastructure. Environmental issues of more weeds and pests where the appropriate pesticides are not used, also face CA, and the technological issue of implementing advanced methods in certain regions. Finally, the practice of CA entails providing training and education to the farmers on the correct use of new technologies and new approaches, which can be difficult in some regions with limited training materials. Finally, the review highlights the importance of implementing these practices to ensure agricultural and environmental sustainability because CA is an essential means of ensuring sustainable farm productivity and improvement in soil erosion resistance.
The gypseous soil may be one of the problems that face the engineers especially when it used as a foundation for hydraulic structures, roads, and other structures. Gypseous soil is strong soil and has good properties when it is dry, but the problem arises when building hydraulic installations or heavy buildings on this soil after wetting the water to the soil by raising the water table level from any source or from rainfall which leads to dissolve the gypsum content. Cement-stabilized soil has been successfully used as a facing or lining for earth channel, highway embankments and drainage ditches to reduce the risk of erosion and collapsibility of soil. This study is deliberate the treatment of gypseous soil by using a mixture
... Show MoreThe dynamic response of foundation rest on collapsible soil in dry and soaked states is studied through wide experimental programmed. Gypseous soil from Tikrit governorate area was obtained and subjected to various physical and chemical analysis to determine its properties. Steel rectangular footing (400x200x20) mm is manufactured. The machine is fitted to the footing, then the model machine foundation is placed centrally over the prepared soil layer in steel container (1200x 1000x1000)mm with proper care to maintain the center of gravity of whole system lie in the same vertical line with container.Then, the footing is subjected to vertical harmonic loading using a rotating mass type mechanical oscillator to simulate different dynamic lo
... Show MoreFound through the study of tissues Alnbarh and domestic focus where a direct impact on the development of the larvae mature into pupae and then to adults appeared to clay soils have a negative impact more than sandy soil at different concentrations salt where as it turns out that the percentage of evolution fly larvae worm Lhalzonnih of the ancient worldadult to have reached more than 80%
In light of today's business world, who faces challenges and intense competition as a result of the rapid evolution of technical and informational, organizations had to respond to variables through the adoption of modern management techniques that reduce the effects of risks and activating the role of the internal control system in order to contribute to the early detection of risks and reduce the negative results expected .The research is to address the problem faced by organizations which still follow the traditional methods in the control activities, and the lack of knowledge of the management and their staff of the importance of the existence of risk management and internal control system takes into account these risks, and the limit
... Show MoreCorrosion inhibiting admixtures are unique among other methods to protect reinforced concrete from corrosion damage. In this study, the effect of furfural on the fresh and hardened properties of concrete mixes of 35 and 45 MPa compressive strengths as well as the corrosion inhibition of furfural was evaluated. Furfural was added at different dosages (1, 2 and 3% by weight of cement) with and without superplasticizer (HRWR). Different electrochemical measurements were performed (Half-cell potential, Tafel plot and linear polarization resistance). Electrochemical measurements confirmed that furfural dramatically reduces the rate of corrosion; the inhibition efficiencies were 62.7 and 63.8 % due to 3% furfural addition to 35 and 45MPa-concr
... Show MoreThe Ottomans ruled Turkey for nearly six centuries, during which the Ottoman Empire passed through varying periods in terms of strength, influence, and the area of land they ruled. In the last decade of its rule, the Ottoman Empire was severely weakened in all political, military, administrative and economic aspects. In addition to the internal strife that was stirred up by the leaders of the Association (Union and Progression), that organization that led the coup movement against the Ottoman Empire later.
After the abolition of the Sultanate and the proclamation of the Turkish Republic, the social fabric in Turkey changed, and many customs and traditions alien to it emerged to society. One of the thing
... Show Moreيتناول هذا البحث مفهوم التعليم بين الأقران كمنهج تدريس في تخصص اللغة الإنجليزية كلغة أجنبية أو كلغة ثانية ويهدف البحث إلى توضيح العلاقة بين المعلم ومتعلمي اللغة في الفصل الدراسي من خلال إلقاء نظرة عامة على المزايا والعيوب والتحديات التي تعترض طريقة التعليم بين الأقران بشكل فعال. تتناول الدراسة البحثية موضوعات آرثرسون التي تتألف من مهارات التدريس ومهارات التعلم وإشراك الطلبة وتحفيزهم ومهارات الاتصال و
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