ASSESSMENT OF WATER QUALITY FOR IRRIGATION: A CASE STUDY IN PUNJAB. AMINA MUMTAZ Senior Scientific Officer PCSIR Laboratories Complex, Lahore. ECONOMY. Role of agriculture in economy. SAP –PK Blob ,2010. INTRODUCTION.
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ASSESSMENT OF WATER QUALITY FOR IRRIGATION: A CASE STUDY IN PUNJAB
Senior Scientific Officer
PCSIR Laboratories Complex,
Role of agriculture in economy
SAP –PK Blob ,2010
Industry & Economy, 2000,08
The major constraint faced by agriculture in Pakistan:
IRRIGATION WATER QUALITY CRITERIA
Soil scientists use the following categories to describe irrigation water effects on crop production and soil quality:
Other potential irrigation water contaminants that affect suitability for agricultural use include
IRRIGATION WATER QUALITY CRITERIA, 2011,29: 0.506
Engineering News, 2010,43(10): 53
Both plant and soil problems can occur due to poor quality waters.
Agricultural Water Quality Criteria ,2004,30:3
OSMOTIC EFFECT TOXICITY
Agricultural Water Quality Criteria ,2004,30:2
Water analysis and the guidelines are the tools used in the initial assessment of the water.Sheikhupura and Gujranwala (villages) were selected for study. Water samples (tubewells) were collected in clean amber coloured 1-2 L samples bottle that were previously rinsed out with distilled water. It is imported that the samples must represent the water sources and special care may be needed to ensure that.
Comparative analysis of Water quality criteria between Sheikhupura and Gujranwala
The most important requirement for irrigated agriculture. It is essential that either an underground or an open surface drainage system must be implemented in the region.
It is essential that fields under irrigation must be leveled through land grading as it provides uniform water application which is important for leaching.
When it is possible, crops of high salt tolerance should also be included in the cropping system.
Border and basin methods should be preferred in order to minimize Salinization risk when good quality water is not available.
Saline soil may be improved by leaching salts from the root zone.