Volume 11 ~ Issue 2

This study aims to using of Urea fertilizer and Nitrate fertilizer on barley plant under sand soil conditions in the Sirte city. The research was carried out at the Experiment Station, Faculty of Agriculture, Sirte University During the year 2018. The materials used in this study were Barley plant seeds, urea fertilizer, nitrate fertilizer, water, label paper, and other supporting materials. implementation of this research The tools used in this study were hoe, gembor, meter, handsprayer, calculator, scales, planimeter, wire as a bamboo nursery binder and other tools that support the implementation of this research. The first factor is the application of urea (U) and nitrate (N) fertilizers which consist of two levels, namely 5 g/plot and 10 g/plot. The plant parameters observed in the study were plant height (cm), number of leaves (strands), and production per plant (g).

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Author Keywords:- Urea fertilizer, Nitrate fertilizer, barley plant, Sirte.

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e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal Original Language: English
Document Type: Article Number of pages: 06

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© Copyright 2014, All rights reserved.

The Solar Energy has huge potential for the electrical Energy Protection in recent days. The PV System is developing very fast as compared to its counterparts of the renewable energies. This Paper proposes Modelling and Design of Grid integrated PV system with Constant Current Controller. The DC voltage generated by the PV system is increased by the DC-DC Boost converter. The utility grid is incorporated with the PV Solar Power Generator through the 3-ф PWM DC-AC inverter, whose control is provided by a constant current controller. This controller uses a 3-ф phase locked loop (PLL) for tracking the phase angle of the utility grid and reacts fast enough to the changes in load or grid connection states, as a result, it seems to be efficient in supplying to load the constant voltage without phase jump. The complete mathematical model for the grid connected PV system is developed and simulated using MATLAB/SIMULINK.

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Author Keywords:- PLL, Boost Converter, MATLAB/SIMULINK

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e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal Original Language: English
Document Type: Article Number of pages: 10

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© Copyright 2014, All rights reserved.