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Monthly archives: October, 2020

Role of Selected Commodities.

There is a wide range of agricultural commodities which include major crops such as wheat , rice, sugarcane and cotton. Moreover, minor crops like gram, bajra, jawar, mauni, masoor and onion etc. are also grown in large quantity. Maize or corn is a staple food in North America, Africa, Latin America, Australia and New Zealand. …

World Agricultural System

An agricultural system comprises of the inputs entering the system and the outputs produced by it. The farmers carefully plan the nature and types of the inputs in order to get the outputs of their choice. They prefer those crops which give them more income. Thus, every agricultural system is planned according to the climatic …

Physical Constraints on Agriculture.

Agricultural activities are greatly influence by many factors which either facilitate or check the performance of this sector. For example, nature of soil, availability of water, rainfall, flood, drought, wind, salinity, water logging, and pest attack are major constraints on agriculture. These constraints influence the farmers in selection of the soil, drops, fertilizers and machinery …

Herding / Pastoralism

It is a form of agricultural activity which involves raising of livestock. The pastoral people rely on animals for their livelihood. These animals include buffaloes, oxen, horses, goats, lambs, sheep, dogs, cats and deer etc. Most of these animals are raised and reared in large farms. This activity is also known as animal domestication. Its …

Primitive Gathering and Hunting

Primitive Gathering: Gathering is a primitive type of human activity in which one or more than one persons collect a variety of natural products. These products include fruits, nuts, berries, roots, fibres and leaves. The people involved in their activity earns their livelihood through these collected fruits or roots etc. According to a recent survey, …

Plantation Farming

Plantation farming is carried out on large plantations. A plantation is defined as a large estate owned by an individual or corporation which is organized to produce a cash crop. Presently, the plantation farming is in practice in the following regions of the world: South Asia: Tea (India, Bangladesh, Sri Lanka). South East Asia: Rubber …

Commercial Farming

Commercial farming is based on modern techniques and machinery. In this type of farming, selected commodities are produced in regions which have ideal environment for this purpose. It is also known as diversified farming because there is no single crop with special priority. This farming is of three categories viz. extensive, intensive or mixed. In …

Bowen’s Reaction Series

Bowen’s reaction series is a complex series of chemical reactions during the process of cooling and solidification of magmatic material. The cooling and crystallization of magma is a complex chemical process in which various silicate minerals crystallize in definite order. The sequence of separation of minerals from a silicate melt is now well established. If …

Polar Regions

(A). ANTARCTICA: it is the smallest continent covering an area of 14.2 million sq.km (8.9 million sq.m) 1. Regions: The Antarctica comprises of following regions: East Antarctica, which is 3000000 sq.miles (7770000 Sq.km) And West Antarctica which is 2500000 sq.miles (6475000 sq.km) 2. Geographic South Pole: It is the southern most part of the earth …