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18
Aug

AEZ, Soils of Tamilnadu

The state is divided into 6 Agro Ecological Zones: North eastern zone; North western zones; Western zone; cauvery delta zone; southern zone; high rainfall zone and hilly zone. Soils are rich with laterite, red sandy, deltaic alluvium, coastal alluvium and red loamy.
18
Aug

Rice growth rate in Tamilnadu

1. Growth rates (1999-00 to 2005-06] On the overall basis in the state and in as many as nineteen districts area, production and yield showed negative growth.

2. Increase in growth of the area is reported in the districts of Villupuram; area and production in Tiruvannamalai, Sivaganga and Tuticorin; pro¬duction and yield in Ramanathapuram and only yield in Theni.

18
Aug

Rice area, production, productivity in Tamilnadu

1. Over a period of four decades from 1966-67 to 2006-07, the productivity increased from 1.5 t/ha to 3.4 t/ha which coincides with a progressive increase in area under HYVs which is almost 100% in 2005-06. 2. Such enhancement in production was achieved eventhough the area under rice cultivation registering 6.6% decrease in kharif and nearly 15% in rabi since 2000.
18
Aug

Rice cultural practices of Tamilnadu

1. Udu cultivation: Seeds of short duration are mixed with long duration in a proportion of 3:1, sown, planted together but harvested separately to save the crop from floods occurring in October-November. 2. Kaipad system: At the end of north east monsoon during October-November, water is let inside the plots, allowed to stand still to facilitate the decomposition of vegetation. Water is drained during February - March and small mounds of a yard in diameter at the base and two feet high are m
18
Aug

Rice Based Cropping Systems of Tamilnadu

Rice-Rice, Rice-Green gram, Rice-Ground nut, Rice-Cotton.
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