Received: 15-11-2022 / Accepted: 22-05-2023
This study aimed to determine the limiting factors as a basis for proposing the direction of improvement and sustainable management of agricultural land in Uong Bi city, Quang Ninh province. The research has surveyed and taken soil samples for analysis at 30 profiles in the area. Some key physicochemical properties were analyzed and evaluated. The results show thatagricultural land in Uong Bi city comprised 6 main groupswith 9 land units. The physical, chemical and nutritional properties of the soil were suitable for the development of many crops in the city. However, some limiting factors included low pH in the pale yellowish humus soil developed on sandy stone (the soil group with the largest area, accounting for 77.97% of the total agricultural land area),OM content in almost soil types was poor to moderate. Therefore, to improve soil quality and increase crop yield, lime and organic fertilizers are encouraged to be applied to increase pH andnutrient content in the soil.