Amna Abdelmoneim Elsayied Abdein
Abstract
The efficiency of the Nitrogen utilization and root nodules' life cycle in alfalfa after various mineral fertilizing and cultivation of soil methods have been investigated. The field test has been performed in the Forage Crops Institute, Pleven, Bulgaria on leached chernozem subsoil kinds and with no ...
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The efficiency of the Nitrogen utilization and root nodules' life cycle in alfalfa after various mineral fertilizing and cultivation of soil methods have been investigated. The field test has been performed in the Forage Crops Institute, Pleven, Bulgaria on leached chernozem subsoil kinds and with no irrigation. The next cures have experimented: 1) for fertilization as below: N0P0K0 (controlling); N60P100K80 (an admitted technology); N23P100K35 (nitrogen has been used 1/2 in the first year of grow and 1/2 in the third year); N23P100K35 (nitrogen has been provided pre-sowing); N35P80K50, and Amophose – 250 kg/ha, estimated at fertilization rate N27P120K0; ii) for soil cultivation as below: soil losing 10-12 cm, plow at depth 12 to 15 cm, 22 to 24 cm (an admitted technologies), 18 to 22 cm and 30 to 35 cm. It has been seen that the cultivation of soil and mineral fertilizing had an impact on nitrogen utilization efficiency and the root nodules' life cycle in Alfalfa. Nitrogen utilization efficiency has been discovered for being maximum at N23P100K35 and plow at the depth of 22 to 24 cm. The root nodules' life cycle has been the longest at N35P80K50 and plows at the depth of 18 to 22 cm. The more useful root mass for nodule number ratio has been seen at N23P100K35 and plow at the depth of 22 to 24 cm.
Amna Abdelmoneim Elsayied Abdein
Abstract
Freshwater is discovered in thirty percent of the ground which lands located by several water sources and humans living there along by eighty percent of bio-diversity. The human population is growing and requiring freshwater. Now humans are relevant eighty percent of freshwater to underground water for ...
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Freshwater is discovered in thirty percent of the ground which lands located by several water sources and humans living there along by eighty percent of bio-diversity. The human population is growing and requiring freshwater. Now humans are relevant eighty percent of freshwater to underground water for farming and daily activities in urban areas. By considering the heavy utilization of underground water, the surface water sources are influenced, especially in the summer. Patna is the capital of Bihar state (India), and the urban zone is developing so quickly now loaded by about 2 million people restricted with Sone, Punpun, and Ganga by Gandak rivers. The ground is plain and there are a dozen ponds for recharging the underground water. In May, the Punpun River includes little water, Sone and Ganga contain lower than ten percent of water in October. People are utilizing underground water by mainly utilizing tube well of >200 feet depth that is go down thirty to fifty feet deeper every year according to slightly restore velocity. It is according to minimum rainwater production. Most of the rainwater runoff is in the Ganga River. Patna requires twelve billion liters of water for billions of rupees in May, and the temperature increases 5 to 7 Degree Celsius higher than the temperature of April generating an alarming condition in the community, especially for fishes, amphibians, birds, and even mammals. The condition becomes so difficult while air contamination, fluoride, and arsenic toxic generate death to organisms cause extinction. for meeting this threatening condition, each rainwater drop must be gathered by the pond's network. At least > ten percent of the land is needed for ponds for meeting the need for water of the increasing human and other organisms for saving green earth.
Amna Abdelmoneim Elsayied Abdein
Abstract
Dinder River is largest tributary of the Blue Nile. It is seasonal river that flows from June to November and reaches its high peak in September. Frequently, the water level exceeds the normal height causing over bank flow and consequently floods. The floods generally ring about losses properties and ...
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Dinder River is largest tributary of the Blue Nile. It is seasonal river that flows from June to November and reaches its high peak in September. Frequently, the water level exceeds the normal height causing over bank flow and consequently floods. The floods generally ring about losses properties and crops close to river banks. This study is attempts to figure out the river flow behavior and find out the aerial extent of inundated lands in four flooding seasons. The investigated area is located in Sennar State, SE Sudan. Discharge data collected over the period from 2015 to 2018 and Digital Elevation Model (DEM) have been used to model the River flow regime, while land cover data was used to determine the affected LU/LC types in the area. HEC-RAS software was used to create 2D unsteady flow model in order to simulate Dinder River flooded area in four seasons. The largest flooded area extent in each season was used as input in GIS environment for further spatial analysis. Statistical computation for the affected area and consequent analysis revealed that: the affected urban area in 2018 was around 28.152km2, in 2017 was 29.205 km2, in 2016 was 16.531km2, and in 2015 was 10.422km2. Similar calculations were carried out for the other LU/LC types. According to the present study, the year 2017 witnessed the largest extent of flooding in the area.