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Multiple Cropping Systems in the Tropics

A. M. Akhanda
Bangladesh Academy for Rural Development, Kotbari, Comilla, Bangladesh.

Abstract/ Executive Summary:

Multiple cropping has been defined as the intensification of cropping in time and space dimensions and growing two or more crops on the same field in a year. The history of multiple cropping is not clearly known. Dalrymple reported that the development of double cropping in Babylon (in Iraq where civilization began) and Egypt closely paralleled the growth of irrigation systems which started 4,000 to 6,000 years ago in the Tigris-Euphrates river deltas in Baby Ion and 3,000 to 5,000 BC along the Nile river in Egypt. He also indicated from the historical evidence that multiple cropping started 3,000 BC in India, 1,012 AD in China and in the 13th century in Japan. In the early and mid- 20^th century King ( 1927) and aIso ( 19.A ) gave detailed accounts of multiple cropping systems in China, Korea, Japan and Taiwan. The history of multiple cropping is old but the modern concepts of multiple cropping under, improved technology are new- The various forms of multiple cropping do not occur haphazardly, but rather follow geographical and energy gradients.

Keywords: Multiple, Croping system, Tropics

Location: BARD, Comilla

Start Date:

End Date:

Program Area: Farming System

Commodity: Rice

Objectives:

To investigate the multiple cropping system in Bangladesh.

Methodology:

Growing two or more crops per year in sequence on the same field. Crop intensification is only in time dimension. 1.1 Double cropping : Growing two crops a year in sequence. 1.2 Triple cropping : Growing three crops a year in sequence.1.3 Quadruple cropping: Growing four crops a year in sequence. 1.4 Ratoon cropping: The cultivation of crop regrown after harvest, although not necessarily for grain. Examples : rice, sorghum, maize etc.

Source of Information: Bangladesh J. Agril. Sci. 8(1): 85-87 ISSN 0379-4296

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The systems available for multiple cropping in the tropics are numerous. Basically any cropping system is designed to control and make use of environmental resources as efficiently as possible. Again, considering the visible radiation, extra days gained from a cropping system mean extra energy for utilization in this energy short world.

Knowledge Management: Journal