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Water quality and soil properties of ponds as influenced by Makhana (Euryale ferox) cultivation
Authors:R. N. Dutta  U. N. Jha  S. N. Jha
Affiliation:(1) Department of Botany, Ranchi University, Ranchi, India;(2) Department of Soil Science, Rajendra Agricultural University, Pusa, Samastipur, Bihar, India
Abstract:Summary Analysis of regularly collected samples of soil and water from Makhana (Euryale ferox) growing ponds indicated that pH of soil and water were established near neutrality and C/N of soil near ten. Bicarbonate dominated soil extract while chloride dominated standing water. During grand growth period (March to June), Ca2++Mg2+, NH4+ K+ increased while Na+ increased during decay of the plant (July to September) both in soil and plants. The soil had high contents of micro-nutrients, K and P. S.A.R. of soil was 3 to 4 times that of water. Free energy of exchange indicated stability and spontaneity.
Keywords:Free energy of exchange  Makhana (Euryale ferox)  Ponds  Saturation extract  S.A.R.
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