Abstract
Knowledge of soil spatial variability is important for the evaluation of agricultural land management practices in the context of precision agriculture. This research work was carried out to characterize the spatial heterogeneity of selected soil properties in shale and sandstone derived soil at farm level. Representative surface (0-20 cm) soil samples were collected at 50 m x 50 m grid pattern and their precise locations were recorded by GPS receiver to examine the selected physico-chemical properties and macronutrients. Soils of the surveyed area were categorized as alkaline. Soil texture ranged from sandy loam to loam, sandy clay loam and silt clay loam. Soil of the surveyed area was low in organic matter content, plant available nitrogen (NO3-N) and phosphorous content. Soil pH, EC, sand, clay, organic matter, NO3-N and available phosphorus were moderately spatial dependent, while available potassium was strongly spatial dependent. The results recommend that there is a need for a site specific farm management keeping in view the soil heterogeneity
Muhammad Rizwan, Muhammad Tariq Siddique, Humair Ahmed, Muhammad Iqbal, Tariq Ziad. (2016) Spatial variability of selected physico-chemical properties and macronutrients in the shale and sandstone derived soils, The Journal Soil & Environment , Volume 35, Issue 1.
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