V. P. Singh* and M.K. Agrawal**
Department of Agriculture Chemistry and Soil Science R.B.S. College, Bichpuri, Agra (U.P.) 283105.
*Department of Agri – K.L. Jain Inter College, Sasni, Hathras (UP)- 202139.
** Department of Agriculture Chemistry & Soil Science, Ch. C.S – S.D.S. (PG) College, Iglas Aligarh (UP)- 202124
Email – singhvirendra368@gmail.com
Abstract : A pot experiments was conducted with three doses of Nitrogen Viz 60, 120, 180 kgha-1 , four doses of Zinc Sulphate i.e, 0, 25, 50, 75 kgha-1 and three levels of EC i.e., 0, 8, 16 dSm-1 during kharif season of 1998 and 1999.The plant height and grain and straw yield decreased significantly over untreated ones. The mean reduction was noted with E2 (16 dSm-1) higher levels of salinity. The higher levels of Nitrogen and Zinc Sulphate enhanced significantly the plant height, growth and yield grain & straw yield of rice crops. Nitrogen application @ 120 kgha-1 (N2)more grain yield to extent of 23.57 and 26.94 % in previous year and second year over 60 kgha-1 (N1)and Zinc Sulphate @ 50 Kg ha-1 (Zn3)increased grain yield to extent 44.20 and 40.93 % in previous year and second year over to control (Zn0)respectively. The uptake values of all nutrients decreased significantly with higher levels of saline irrigation water over lower levels of salinity. The N,P,K Na and Zn uptake by grain and straw were increased with enhancing dose of Nitrogen.
Keywords : Salinity, Grain, Straw, yield, Uptake values, Nitrogen, Zinc
Reference
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