Soil analysis is an essential tool for assessing soil fertility and determining the appropriate inputs for efficient and cost-effective crop production. By identifying nutrient levels, pH, and other soil properties, it helps farmers apply the right amounts of fertilizers to meet crop requirements while utilizing existing soil nutrients. This not only maximizes yields and reduces unnecessary costs but also promotes sustainable farming by preventing soil degradation and minimizing environmental risks. Ultimately, soil testing supports long-term agricultural productivity by ensuring balanced nutrient management and improved soil health.
The quality of irrigation water is a critical factor influencing crop yield, quality, and overall agricultural sustainability. It directly affects soil productivity, plant health, and long-term soil fertility, as well as helping to safeguard the environment. Poor-quality irrigation water can cause soil degradation, salinity buildup, and nutrient imbalances, which may hinder crop growth and reduce yields. To ensure optimal water management, a comprehensive chemical laboratory analysis is essential for assessing parameters such as pH, salinity, nutrient content, and potential contaminants. This analysis gives useful information that guide farmers in selecting appropriate water sources, implementing corrective measures, and maintaining sustainable irrigation practices.
Fertilizers play a crucial role in crop development by supplying essential nutrients that support plant growth, enhance productivity, and improve overall crop quality. Proper fertilization not only boosts yield but also contributes to soil health when applied appropriately. Fertilizer analysis is a critical process in determining the nutrient composition and quality of the fertilizers being procured by the Agency. By assessing nutrient content, fertilizer analysis ensures that the correct amount and type of nutrients are added, preventing deficiencies, minimizing environmental impact, and maximizing agricultural productivity.
As part of its regular activities, the Regional Soils Laboratory – CAR (RSL-CAR) conducts rapid and qualitative soil analysis using the Soil Test Kit (STK) to support soil fertility evaluation in the field. This initiative is further strengthened through additional funding and technical assistance provided by the Department of Agriculture – Bureau of Soils and Water Management (DA-BSWM) under the Locally Funded Project – National Soil Health Program.
The STK is a portable kit that contains reagents and materials for determining soil pH and the available levels of Nitrogen (N), Phosphorus (P), and Potassium (K), along with instructional materials such as an STK brochure and a Fertilizer Recommendation booklet. It is designed to be user-friendly, relying on visual indicators and color charts to allow farmers and extension workers to quickly assess soil conditions and nutrient levels.
Results from the STK guide the formulation of site-specific fertilizer recommendations, helping improve soil health and optimize crop productivity. Through this regular service, RSL-CAR promotes accessible soil testing and supports the adoption of sustainable and science-based agricultural practices in the Cordillera region.