Soil Temperature over India

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Soil temperature is of greater ecological significance to plant life than air temperature. Soil temperature influence germination of seed, the functinal activity of roots, the rate and duration of plant growth, and occurrence and severity of plant disease. The aamount of organic matter that remains in the soil is higher in low soil temperature that higher soil temperature. Extremely high soil temperature also have a harmful effects on roots and may cause destructive lesion on the stems of plant. On the other hand, low soil temperature impade the plant minerals intake. Persistently cold soil results in dwarfed growth. The ecological significance of soil temperature is obviously of vital concern to those engaged in agriculture. An unfavoraable soil temperature may hinder the crop growth completely. The maps presented are based on the averages of mean daily evaporation (mm) for all the twelve months__ January[0700LMT (5cm,15cm & 30cm) &1400LMT(5cm,15cm ),April [0700LMT(5cm,15cm &30cm) &1400LMT(5cm,15cm),July[0700LMT(5cm,15cm & 30cm) & 1400LMT(5cm,15cm),& October [0700LMT(5cm,15cm & 30cm) &1400LMT(5cm,15cm), and also some selected stations Bangalore,Kolkata,Chennai,Nagpur,New Delhi and Pune.