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Improving Soil Hydraulic Properties for Better Agricultural Water Management and Crop Production – a Review

Dr. M. H. Ali
SSO
AED, BINA

Islam, A.K.R.M
Asso. Prof.
GTI, BAU

M. Hasanuzzaman
SO
BINA

Abstract/ Executive Summary:

Soil hydraulic properties are the key indicators for movement of water and chemicals through the soil, the amount of water and solutes available for plant growth, and finally impact on agricultural productivity. This paper reviews the approaches and methods to improve the soil hydraulic properties (SHP) with a view to help to improve SHP under the prevailing conditions. Different soil hydraulic properties pertinent to water and nutrient management, the factors affecting soil hydraulic properties, and the available methods or management options to improve them are discussed. The improvement of soil hydraulic properties through site specific technologies will lead to efficient use of water and fertilizers and help in sustaining agricultural production at higher level.

Keywords: Sustainable agriculture, Soil hydraulic properties, Water holding capacity, Water transmission property, Organic manuring, Tillage, Mulching

Location: BINA, Mymensingh

Start Date:

End Date:

Program Area: Conservation and Biodiversity

Commodity: Land development productivity

Objectives:

This paper reviews the techniques to improve the soil hydraulic properties. Before going to detail discussion, concept and definition of different hydraulic properties are discussed first.

Methodology:

A knowledge of soil hydraulic properties is essential to allow application of existing soil physical theory to practical land management issues. Soil hydraulic properties like the movement of water to plant roots, the flow of water to drains and wells, water holding capacity, moisture release properties, solute transport and the evaporation of water from the soil are essentially required for developing irrigation scheduling for maximizing water use efficiency. Scientific management of irrigation system requires a thorough understanding of the hydraulic and drainage characteristics of soil of any command area. This facilitates prevention of water logging and salinization through adoption of preventive measures at proper time. Therefore, persistent efforts are needed to arrest further degradation of soil hydraulic properties, to alleviate soil hydraulic constraints, and also to understand the respective causal processes for the sake of holistic, safe and resilient agricultural production system.

Source of Information: International Journal of Engineering and Technical Research (IJETR), 2(6): 30-34, (2014)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Sustaining the agricultural productivity at higher level is essential to feed the growing world population. This calls for restoration/improvement of physical, chemical, biological and hydraulic properties of soil. From the review, it is apparent that there are many factors affecting the soil-water retention and transmission properties, and also there are a range of options to improve these properties. However, the most appropriate option(s) may vary from site to site, and country to country, and also on socio-economic conditions of the farmers. The improvement of soil hydraulic properties through site specific technologies will lead to efficient use of water and fertilizers and help in sustaining agricultural production at higher level.

Knowledge Management: Journal