Magnesium (Mg) is an important nutrient to human body as it is involved in hundreds of biological functions. The sufficient magnitude of Magnesium nutrient present in the food helps to enhance such bio-chemical activities. Oriza Sativa (rice) is the important food for millions of people in the world. The present study is to compare the Mg nutrient uptake and availability in different parts of paddy (oriza sativa) plant from organic manure field and synthetic fertilizer field, there by checking the health of localized area of south India soil. The study area is Sirkazhi which coordinates: 11.239°N 79.736°E, thirteen kilometer from Bay of Bengal and 250km from the capital Chennai, located in Nagapattinum district of Tamilnadu south state of India.   This is a part of the Cauvery delta region and agriculture is the major work for people live here. Farmers are carrying out paddy cultivation with pure organic manure as well as synthetic fertilizer. There are five paddy plant samples from each village totally hundred and ten samples from twenty villages are collected randomly for the standard triple acid extract analysis. Mg content from organic manure soil,  root of paddy-minimum 1.52% recorded from Thennamkudi, Valluvakudi, Agaralathur, and Kathiramangalam villages, maximum 1.70 recorded from serukudi village, mean 1.70%. Stem of paddy –minimum 0.101% from Arasur village and maximum 0.960% from Erukkur village, mean 0.635%. Leaf of paddy- minimum 0.53% from Ahani village, maximum 0.73% from vadarangam village, mean 0.63%. Samples from fertilizer field show the results as 1.54 % from Valluvakudi, Agaralathur, and Kathiramangalam villages, 1.72% from serukudi village with mean value of 1.69%. Stem of paddy- 0.103% from Arasur village, maximum 0.990%, from Erukkur village; the mean value is 0.640%. The minimum available Mg nutrient is recorded from Ahani (0.56%) village rice plant whereas maximum Mg (0.75%) content was recorded from Pannankudi village. the mean value is 0.65%. The recorded Magnesium (Mg) content is 100% sufficient as compared with the critical limit (&lt;0.1). The result shows that the paddy plant uptake more Mg nutrient from fertilizer field which indicates that the gradual nutrient depletion from the soil which leads to weakening of soil health.

Effect of magnesium uptake by <i>Oriza Sativa</i> from organic and inorganic fertilizer fields -comparative study

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Effect of magnesium uptake by Oriza Sativa from organic and inorganic fertilizer fields -comparative study