The soil fertility maps generated through Global Positioning System (GPS) and Geographic Information Systems (GIS) for effective decisions making of nutrient management. A soil fertility inventory research was carried out in the Kurhani and Sakra block of Muzaffarpur, Bihar. Assessment of fertility status, altogether 40 (forty) geo-referenced composite soil samples were collected from the various locations of the studied area using a GPS device. The processed soil samples used for soil attributes determination using prescribed standard methods. Soil nutrient status and fertility maps were created by using ArcGIS software employing IDW interpolation techniques. The results clearly indicated that the soils reaction was alkaline in nature having pH value more than 7.5. Soil organic matter and potassium content was found to be low to medium whereas, available nitrogen, phosphorus, and sulphur were recorded low in the blocks. However, copper (Cu) and Iron (Fe) the value of micronutrients showed below critical limits.

GIS, GPS, Muzaffarpur, Soil Fertility Maps

The management of nutrients and soil fertility have an impact on agricultural production, which impacts food security and livelihood. The results indicate that the intrinsic fertility status of the studied area was generally low. Nutrient mining, which entails pulling more nutrients out than are put back in, can be considered as the main reason for soil depletion along with the prevalent soil management practice and environmental conditions in the study area. The spatial distribution and fertility maps that have been produced will be useful to farmers and planners in improving soil management for sustainability and productivity. These maps are expected to aid in their comprehension of the existing soil conditions and decision-making.

Techi Tagung, Sanjay Kumar Singh, Pankaj Singh, Sumedh R. Kashiwar and Santosh Kumar Singh (2022). GPS and GIS based Soil Fertility Assessment and Mapping in Blocks of Muzaffarpur District of Bihar. Biological Forum – An International Journal, 14(3): 1663-1671.