Beauty Farming Life

B. Sc.Ag (Hons) Part-I Agriculture.  https://cststudy.blogspot.com/ Agriculture Agriculture is the production of plants and animals for the welfare of human being, by utilizing the resources of nature. It’s major function is to provide materials for food, cloth and shelter to man and feed to animal. The term agriculture has been derived from the Latin words- 'agar' means land or field and ‘kultura' means cultivation. The Greek ‘geoponic' (cultivation in earth), 'hydroponic' (cultivation in water) and `aeroponic' (cultivation in air) refer to the three main spheres of agriculture. Agriculture is the most important enterprise in the world. In a true sense it is a productive unit where the resources of nature namely, soil, sunshine, air, temperature, rain water, humidity etc. are integrated into a single primary unit (crop plants or their usable parts) indispensable for human beings. Secondary productive units namely, animals such as livestock, ...

Agronomy Agronomy is the science of manipulating crop environment complexes with the duel aim of improving crop productivity as well as having a better understanding of the processes involved. The word agronomy has been derived from two Greek words- `agros' means field and ‘nomos- ' means to manage. Literally, it means the art of managing fields and technically it means the science and economics of crop production by management of farmland. In other words it is the art and underlying science in production and improvement of field crops with the efficient use of soil fertility, water, labour and other factors related to crop production. Thus agronomy as a branch of agricultural science deals with principles and practices of field management for the production crops. Among all the branches or agriculture, agronomy occupies a pivotal position and is regarded as the mother or primary branch. Scope of agrnomy The central theme of agronomy is of soil-crop-environment r...

Opportunities and constraints of agriculture in Bangladesh The opportunities and constraints prevailing in the agricultural sector of Bangladesh are as follows: Opportunities 1.       Agricultural sector is the single largest contributor to GDP. 2.       Crop production system is highly labour intensive and there is an abundance of labour in the country. 3.       Agriculture is the largest source of employment for skilled and e unskilled labour. 4.       Favorable natural environment generally exists throughout the year for crop production. 5.       Wide range of bio-diversity exists for different crops. 6.       Different crops and agricultural commodities are the main sources of nutrition including protein, minerals and vitamins. 7.       Agricultural commodities have comparati...

Plant nutrition-https://cststudy.blogspot.com/ Plant nutrition Nutrition may be defined as the supply and absorption of chemical compound required for plant life , growth and metabolism. It is the process of absorption and utilization of essential elements for plant growth and reproduction. Arnon (1954) has defined following criteria/objectives for essentiality of any nutrient: i.                      The plant cannot grow or complete its life cycle in absence of the element; ii.                    The element is very specific and cannot be replaced by another element; iii.                   The element plays a direct role in plant metabolism. Thus, an essential plant nutrient may be defined as "...

Nutrients.ststudy.blogspot.com Essential plant nutrients, available forms and sources: Nutrients    Available forms                           Specific sources Organic               Inorganic Carbon (C)  CO 2  (mainly by stomata)                           Air, atmosphere Hydrogen (H) H 2 O, H +                                             ...

Irrigation, Objective of irrigation, Necessity of irrigation.https://cststudy.blogspot.com Irrigation Irrigation generally is defined as the application of water to the soil for the purpose of supplying moisture essential for plant growth. Objective of irrigation:   Irrigation is essential for crop production. Following are the objectives of irrigation- 1. To supply water for the nutrition and growth of plant. 2. To leach or wash out injurious salt from the soil. 3. To remove the stress (moisture deficit) condition of plants. 4. To release nutrients in soil solution for absorption by plants. 5. To keep the activity of soil microbes at the optimum level and to hasten the decomposition organic       matter in the soil. 6. To maintain the temperature and humidity of the soil. 7. To control harmful soil insects. 8. To create water stagnation for controlling dry land weeds. 9. To create condition suitable for puddling. 10. Irrigatio...

Types of Surface irrigation.https://cststudy.blogspot.com/ Surface irrigation In surface methods of irrigation, water is applied directly to the soil from a channel located at the upper reach of the field. Following are the general requirements of prime importance to obtain high efficiency in surface methods of irrigation:       >Properly constructed water distribution systems to provide adequate control of water to the field.       >Proper land preparation to permit uniform distribution of water to over the field.       >The land should be levelled well to achieve higher water application efficiency. There are different methods of surface irrigation as follows: A.Free flood method This is a common methods of irrigation of wetland rice where water may be applied as a continuous flood, rotational flood or an intermittent flood. This is a suitable method for an area...