Assessment of Soil and Water physical and chemical properties for Crop production in the Nyarubogo irrigation scheme, Rwanda
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Date
2024-09-20
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Rwanda Journal of Agricultural Sciences
Abstract
Agricultural production is significantly influenced by the soil and water quality,
especially in irrigation systems, where poor management may result in degraded soil
and lower crop yields. This study is noteworthy because it tackles the problems of
nutrient imbalances, salinity, and acidity in the Nyarubogo irrigation system. This
study aimed to assess the irrigation scheme's soil and water quality to spot any hazards
to crop productivity and suggest suitable mitigation measures. A wide range of
characteristics, such as pH, nutrient content, total dissolved solids (TDS), magnesium
adsorption ratio (MAR), soluble sodium percentage (SSP), adsorption ratio (SAR), and
electrical conductivity (EC), were determined on a comprehensive set of soil and water
samples. The results showed that, with pH values ranging from 5.1 to 6.9, most of the
soils in the study area are acidic, which may hinder crop development and nutrient
availability. Furthermore, the soil demonstrated a moderate cation exchange capacity
(CEC), suggesting a respectable ability to retain nutrients. The SAR of the water
samples in this study ranged from 0.22 to 0.28 meq/l, indicating that water was suitable
for irrigation and that no adverse effects were anticipated. It is evident from the high
MAR values found in irrigation water that cautious management is required to avoid
long-term soil deterioration. To lessen the negative consequences of acidity, salinity,
and nutrient imbalances, this research emphasizes the need to routinely monitor the soil
and water and use specific soil management techniques. The findings establish a basis
for enhancing soil health and maintaining agricultural output, giving farmers and
agricultural managers involved in the Nyarubogo irrigation project crucial information.
Description
Journal article
Keywords
Soil quality, Water quality, irrigation scheme, Rwanda