Bøger af Ahmed Mohamed Taha

This book introduces basic and practical information on fertigation to researchers, extension agents and growers.  To provide understanding of the basic issues regarding the appropriate selection of fertilizer injectors, fertilizer compounds used in fertigation for growing various field and horticultural crops. The book provides useful basic principles and practical information concerning fertilizer management and fertigation techniques of field, horticulture, and medicinal and aromatic crops. The book focuses on the agronomic value of fertigation practice and provides the reader with best practical advice required for successful fertigation based on the field experience. This book summarizes the basic principles and practices of fertigation techniques to ensure accurate and efficient crop nutrition. The book consists of 5 chapters covering the following topics: Introduction to chemigation and fertigation, selecting an injector for fertilizer/chemical injection, fertilizers for fertigation, major, secondary, and micronutrient fertilizers used in fertigation, and fertigation practices: Egyptian case study. It also includes appendixes for fertigation calculation examples, calibration of an injection pump, calculating the quantities of fertilizers needed for fertigation,  nutrients requirements per each ton of crop yield produced, macronutrient requirements for some filed, fiber, fruit, vegetable crops, and medicinal and aromatic plants.Fertigation is one of the smart practices that help attains sustainable food production and minimize environmental pollution. Fertigation is the application of dissolved mineral fertilizers, soil amendments, and other water-soluble products to the roots of crops through irrigation water. This book provides understanding of the basic issues regarding the appropriate selection of injectors and fertilizer compounds used in fertigation for growing various field and horticultural crops which are essential to attain higher productivity, increasing food security and reducing food contaminations. It also clarifies the advantages of fertigation and set solutions to overcome its disadvantages.

The deck commonly was the main structural component for the floors of steel framed buildings. The addition of concrete cover provided structural strength, served the purposes of fire protection, a means to level the top surface of the floor, and a means to distribute the load. The construction philosophy for the use of steel deck was to have it serve only as form-work for the traditionally reinforced concrete slab, which provided the full structural capacity. In this book, a laboratory test program included full-scale performance tests of composite slabs utilizing trapezoidal deck profiles that are commonly available in Egyptian market. A discussion of experimental results in the light of various codes and specifications was carried out to study the composite slab behavior focusing on the effect of the end anchorage of the slab on the interaction property and slab performance. The codes involved in the comparison are BS 5950-4:1994, CSSBI S3-2003, EC4 EN 1994-1-1:2004. A design procedure to simplify the design process is performed by means of programming to good evaluation composite slabs behavior.