Patel, J. C.Patel, Khushvadan C.2018-04-252018-04-251988http://krishikosh.egranth.ac.in/handle/1/5810044574The present investigation was carried out with a view to studying the effect of different levels of nitrogen (80, 120, 160 and 200 kg/ha), phosphorus (40, 60 and 80 kg P2O5 / ha ) and zinc (0. 5 kg/ha) on yield , content and uptake of nutrients by wheat (Sonalika) grown on goradu soil of Anand in rabi season (1986-87). Split plot design was followed for laying out the experiment. The present study revealed that application of 120 kg N/ha significantly increased the grain (10.5%) and straw (6.3%) yields over 80 kg N/ha, being at par with 160 kg N and 200 kg N per hectare in case of grain and 160 kg N/ha in case of straw. Application of phosphorus @ 60 kg P2O5/ha significantly increased the grain (4.0%) and straw (2.0%) yields over 40 kg P2O5/ha. Application of 5 kg Zn/ha (ZnSO4 ) significantly increased the grain (3.6%) and straw (2.8%) yields over no zinc. The highest straw yield was recorded under N2OOZn5. which was significantly higher over minimum yield under N80Zn0. treatment combination. Application of 120 kg N/ha significantly increased the N, S and Zn contents in grain and straw over 80 kg N/ha except Zn content of grain which was significant upto 160 kg N/ha and Zn contents of grain and straw which were significant upto 200 kg K/ha. Application of 60 kg P2O5/ha significantly enhanced the content of N and P of grain and S content of straw over 40 kg P2O5/ha. However, Fe and Zn contents of grain and straw (except Zn in grain) were significantly reduced due to 80 kg P/ha over 40 kg P2O5/ha. Application of 5 kg Zn/ha (ZnSO4) significantly increased Zn and Mn contents of grain and straw (except Mn in straw) over no zinc. However, Fe and Cu contents of grain and straw were significantly reduced due t o application of 5 kg Zn/ha. Interaction of N x Zn showed significant effect on Zn content by straw. Uptake of N, P, K, S, Pe and Zn by grain and straw as well as total removals were significantly enhanced due to application of 120 kg N/ha over 80 kg N/ha (except uptake of P by straw and total removal, uptake of Fe and Zn by grain ) . However, total Fe uptake significantly decreased at N160 over N120 level. Application of 60 kg P2O5/ha significantly enhanced the uptakes of N, P and S by grain and straw as well as total removals over 40 kg P2O5/ha (except uptakes of N and P by straw) . However, total uptake of Fe and Zn uptake by straw were significantly reduced at 80 kg P2O5/ha over 40 kg P205/ha. Uptakes of N, S, Mn and Zn by grain , straw and total removals were significantly enhanced with the application of 5 kg Zn/ha except N uptake by straw. However, uptakes of Fe and Cu by grain , straw and total removal were significantly reduced due to zinc application except Fe uptake by straw. Interaction of N x Zn showed significant effect on Zn uptake by straw. In general , it can be concluded that for getting optimum wheat yields and larger utilization of nutrients, application of 120 kg N/ha and 60 kg P2O5/ha alongwith 5 kg Zn/ha (ZnSO4) appears to be optimum dose for wheat (Sonalika) grown on goradu loamy sand soil of Anand.enAgricultural Chemistry and Soil ScienceA StudyThesis