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Seasonal variations in rainfall, increased mean surface temperature, persistent drought, reduced soil moisture, depleted soil nutrient, and crop failures have all been evidently linked to ...
Seasonal variations in rainfall, increased mean surface temperature, persistent drought, reduced soil moisture, depleted soil nutrient, and crop failures have all been evidently linked to anthropogenic-induced climate change. These changes influence shifts in ecosystem regimes inducing regional and global food insecurity issues. Water scarcity for agricultural productivity during the hot dry season in Vientiane Province of Lao PDR continues to be a major challenge among smallholders who rely on rainfed dominated farming systems for their livelihoods. Sustainable groundwater irrigation has being praised by stakeholders to have promising potential to contribute to the water scarcity needs of farmers. Good land use practices including agricultural activities can protect groundwater resources when land resources including soils are use judiciously and efficiently. One approach to use groundwater resources sustainably is to complement to what farmers in these areas are already doing to manage agricultural soils to enhance productivity. Given the interconnectedness between groundwater resources and land use for agricultural activities, managing soils sustainably through regenerative soil amendments to enhance and manage soil fertility and soil moisture for plants growth and development is crucial to ensuring the sustainable agricultural water management systems. This research seeks to improve soil quality by enhancing soil nutrient status and water retention through biochar amended soil systems relative to the common farming practices among smallholder irrigators in Ekxang village. The experimental study designed using the randomized complete block technique, which involves biochar treatments and replications on Morning Glory for one growing season. We hypothesized that rice husk biochar inoculated with cow manure and manure tea plus NPK and amended in soil will significantly increase soil quality by improving soil nutrient status and water availability, which will positively enhance productivity relative to the traditional farming practice.