Agricultural soil science

Lebanon might not be denoted as major agricultural country due to its size; however its geographic location around Mediterranean coast and climate regarding high mountains and fertile valley aimed in cultivating all kind of crops and fruits. Porter’s methodology & hypothesis can be related to Lebanese agricultural sector confirming and illustrating how each components interact through analysis of factors and derives considerable advantages from basic Factor Conditions. Lebanon relies on physical…

2.2. Importance of nutrients in sheep production Importance’s of Nutrients are substances, that supplied by animals used as feedstuffs, for body maintenance and production. Adequate amount of energy’s, proteins, vitamins and mineral supplements are essential nutrients to improve the productivity of sheep fatting. According to Cannas et al. (2004), Adequate supply of energy and protein in the sheep balanced diet are important to enhance meat production and to protect the sheep from weight loss,…

When flowers or plants are sensitive to climate and may not be suitable to the climate in which it is sold, the retailer definitely maintains the responsibility to alert customers of the growing conditions prior to purchase. Like all products, adequate disclosure remains necessary on the flowers. A reasonable consumer would assume, that if not told otherwise and based on past experiences with the Palles’ flower shop, that the flowers were locally grown and would fit their geographic climate. The…

Pigeonpea (Cajanus cajan (L.) Millsp.), also known as Redgram, is an economically and nutritionally important grain legume crop belonging to the Cajaninae sub-tribe of the tribe Phaseoleae under sub-family Papilionoideae of family Leguminosae. Considering the vast natural genetic diversity in the germplasm and the presence of many wild relatives, India is considered as the primary center of origin of pigeonpea (Van der Maesen, 1980). It is one of the hardy, drought tolerant and important pulse…

Natural pastures are the main sources of feed for ruminants, and form the major feed component of domesticated livestock in Ghana. However, unfavorable rainfall pattern, uneven seasonal growth and unavailability of pasture during certain times of the year have been considered the major limitations to constant supply of forage for ruminants. There are two seasons in Ghana, the dry and wet season. Forages are normally abundant in the wet season but this is in reverse to the dry season. These…

Plants gain a lot of nutrients in their daily lives. They get it mostly from water and also the soil. Water is a molecule made up of the following atoms, Hydrogen and Oxygen. In this molecule the electrons are not shared equally between these atoms. Electrons are negatively charged so if they spend more time around an atom the atom becomes negative. The electrons turn Oxygen negative because they spend more time together. The reason for the electrons to be around Oxygen is because Oxygen has…

(Morgan, Bending and White, 2005) The interaction between plants and beneficial microbes is necessary for the protection of plants, both from pathogenic microbes (Whipps, 2014) but also the buildup of toxic substances which the plant may absorb from the soil. (Morgan, Bending and White,…

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8.5.3 INTERPRETATION Comment on the properties of the soil GENERAL REMARKS: This test is useful when the soil is soft and its water content is near liquid limit. The following precautions are necessary when using field vane shear tests: 1. The vane must be rotated soon (within 5 minutes) after insertion into the depth to be tested as delays of one (1) hour to one day may lead to overestimation of strength by 10% to 20% respectively. 2. Standard rate of rotation is 6 degrees per minute. 3.…

Abiotic stress in plants: an overview: An environmental perturbation such as drought, salinity, chilling, freezing and high temperatures can influence plant growth and, inturn, can prove detrimental to enduring agriculture (Slama et al, 2014). Such kind of environmental disturbance encountered by the plant in field or in vitro is referred to as abiotic stress.Under such conditions, plants advancingly experience altered or abnormal cellular and whole plant processes just to achieve the right…