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Sesame (Sesamum indicum L.) is the oldest oilseed crop known and cultivated by man. Among the oilseed crops, sesame ranks first for having the highest oil content of 46-64 per cent and 6355 K cal per kg dietary energy in seeds. The seed of sesame is also rich in protein (20-28 %), sugar (14-16 %) and minerals (5-7 %).The specific reasons identified for the low yield of sesame in India is due to its cultivation under sub-marginal lands without due importance to the choice of appropriate season, high yielding variety, nutrient management and new agro-technological packages. One way of increasing the productivity in sesame is by increasing the number of branches leading to increase in total number of capsules per plant. Maintaining the plant population also plays a vital role in realizing the yield potential of sesame. Possibility of cultivation of sesame in summer season under irrigated condition wherever supplemental water resource is available had not been tried or practiced by the farmers of this region. Therefore, selection of suitable variety, time of sowing, appropriate geometry and agronomic technologies are importance for increasing the productivity of sesame in this region.
The introduction of Green Revolution Agriculture(GRA)had paved the way for attaining self sufficiency in India, with respect to its food production. Major important component of GRA for increasing production is irrigation. Due to GRA, the ground water resources are exploited all over the country almost to its maximum potential.The combination of two major sectors (Agriculrure and Industries) in utilizing the ground waters of Pondicherry region had resulted in the salinization of water causing huge problems both for agriculture and industries. Further investigations had shown that the crops were affected by hydrogen sulphide injury, which has resulted due to irrigating with sulphate rich water and submergence for a longer period of time. The source of sulphate in the ground waters was identified to be the sea water which has intruded into the ground water due to over exploitation of ground water aquifers. Keeping all the these points in mind, Agro - Ecologically sustainable management practices are demonstrated in this text book to mitigate the poor quality of ground water as well as to reclaim the sulphate rich soils in the rice bowl region of coastal Agro Ecosystems.
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