Background: The purpose of this study is to determine various topographic features as well as the characteristics of micro and macro nutrients in soil samples in the Onattukara wetland paddy fields’ special agricultural zone. Using the Global Positioning System, the particular locations of several soils sampling areas located in different Onattukara blocks were found (GPS). The macro (N, P, K) and micro (zinc, iron, copper, manganese) nutrients in soil samples taken from various places in the paddy fields region were studied.
Methods: The Onattukara special agricultural wetland zone in this field investigation during 2017-2018, GPS technique method was used to locating 16 soil samples were collected. Laboratory methods used for chemical analysis of soil.
Result: Nitrogen and phosphorus availability were found to be poor in almost all soil samples, whereas potassium availability was found to be medium. In almost all soil samples, the presence of micronutrients (zinc, copper and iron) was found to be critical. The data shows that soils are lacking in N, P and K, necessitating the addition of additional fertilizer and manures to make them acceptable for cultivation and promote healthy growth.