Abstract
ABSTRACTPoor quality of sandy loam soils is the main reason for low crop yield. Improvement of physicochemical properties of these soils is very challenging. Addition of organic sources may improve the soil properties. Therefore, this study investigated the adequacy of poultry-manure-compost (PMC) and pressmud-compost (PrMC) at 0 (control), 2, 4, 6, 8, and 10 t ha−1 for improving the physicochemical properties of sandy loam soil and maize performance. An increasing trend in most soil and crop traits was seen with increasing compost levels. For 10 t PMC ha−1, soil inorganic-N (512%), organic-carbon (78%), and water-holding capacity (65.36%) improved maximum. This resulted in the maximum mean crop growth rate (43.85%), stover yield (94%), grain protein (21%), and nitrogen use efficiency (30.6 kg kg−1). Contrarily, grain oil (−7%) was lowest at 10 t PMC ha−1. Consequently, 10 t PMC ha−1 could be much effective to improve the physicochemical properties of sandy loam soils and maize performance.
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