Manuring and Irrigation.On the black clayey soils of the Bellary District.Sorghum (Cholam or Jonna or Jowar)and cotton are the main crops that are grown.In the rain fed conditions,- the normal acre yields have been 450 lbs.of sorghum.By irrigation alone. the yield was increased to about 900 lbs.but when irrigation was combined with adequate manuring.the results were still better.Sorghum manured at 60 lbs.nitrogen per acre,and irrigated,gave an acre yield of 2,244 lbs.of grain and cotton, manured at 80 lbs.nitrogen ,gave a return of 672 lbs.are that where crops are irrigated,there is need to manure the land as well,in order to get the full worth of irrigation.
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Madras Agricultural Journal (MAJ)
Madras Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641
003
Tamil Nadu, India.
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