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Fertilizer Industry

Organic Fertilizers: Seaweed

Seaweed is a fantastic soil or compost ammendment   What is it? Seaweed is a general term for any of the multi-celled ocean algae. What is the primary benefit? Seaweed is a great source of organic matter for our compost and our soil. It is full of beneficial trace minerals, plant growth hormones, …

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Factors Controlling Soil Reactions

Soil reaction varies due to following factors 1. Nature of soil colloids: The colloidal particles of the soil influence soil reaction to a very greatest extent. When hydrogen (H+) ion forms the predominant adsorbed cations on clay colloids, the soil reaction becomes acid. 2. Soil solution: The soil solution carries a number …

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Active Soil Forming Factors

The active soil forming factors are those which supply energy that acts on the mass for the purpose of soil formation. These factors are climate and vegetation (biosphere). 1. Climate: Climate is the most significant factor controlling the type and rate of soil formation. The dominant climates recognized are: Arid climate: The …

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Soil Forming Processes

The pedogenic processes, although slow in terms of human life, yet work faster than the geological processes in changing lifeless parent material into true soil full of life. The pedogenic processes are extremely complex and dynamic involving many chemical and biological reactions, and usually operate simultaneously in a given area. …

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Fundamental Soil forming Processes

Humification: Humification is the process of transformation of raw organic matter into humus. It is extremely a complex process involving various organisms. First, simple compounds such as sugars and starches are attacked followed by proteins and cellulose and finally very resistant compounds, such as tannins, are decomposed and the dark coloured substance, …

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Specific Soil Forming Processes

The basic pedologic processes provide a framework for later operation of more specific processes Calcification: It is the process of precipitation and accumulation of calcium carbonate (CaCO3) in some part of the profile. The accumulation of CaCO3 may result in the development of a calcic horizon.  Calcium is readily soluble in acid …

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Development of Soil Profile

The development of soil profile is a constructive process where in disintegrated material resulted from weathering of rocks and minerals gets converted into a soil body. Definition of soil profile: The vertical section of the soil showing the various layers from the surface to the unaffected parent material is known as …

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Physical Properties of Soil

Physical properties (mechanical behaviour) of a soil greatly influence its use and behaviour towards plant growth. The plant support, root penetration, drainage, aeration, retention of moisture, and plant nutrients are linked with the physical condition of the soil. Physical properties also influence the chemical and biological behaviour of soil. The …

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Soil Texture

Definition of Soil Texture: Soil texture refers to the relative proportion of particles or it is the relative percentage by weight of the three soil separates viz., sand, silt and clay or simply refers to the size of soil particles. The proportion of each size group in a given soil (the texture) …

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