Assertion: manure's nutrient | /r/Causes | environmental menace
Facets:
Source sentences:
text: In this study, supplying 20 t·ha−1 chicken manure was beneficial to the subsequent crops during the second cropping cycle, whereas excess unutilized nutrients by the main crop in plots fertilized with mineral fertilizer was likely to have been leached down the soil horizon or run-off, thereby causing environmental menace .