Mohite, A.VSurve, N.DDaftardar, S.YPawar, R.V2017-03-142017-03-1407-06-87http://krishikosh.egranth.ac.in/handle/1/5810004892A green house experiment was conducted during the year 1985-86 at the Mahatma Phule Agricultural University, Rahuri to study the effects of pressmud (0, 5 t/ha) and levels of pyrites (0, 1.0, 1.5, and 2.0 t/ha) and their combinations on soil properties, uptake of nutrients and on growth of sugarcane (Cv. Co-740) grown in saline calcareous soil. The soil pH, EC (1:2.5 SoiUUater) and CaC03 content decreased by the application of pressmud and increasing levels of pyrites. The available nutrients such as nitrogen, phosphorus, and potassium and DTPA extractable Fe, Pin and. Zn significantly increased by the application of pressmud and increasing levels of pyrites. The maximum increase in available N, P, K,Fe, Mn and Zn was under pressmud (5 t/ha) plus pyrites (2 t/ha). Ravirajan V. Pawar M. Sc. (Agri . ) and concentration of Fe, Mn and Zn in fourth leaf of sugarcane significantly Increased by the application of pressmud and increasing levels of pyrites. There was a significant increase in concentration of Fe, Mn and Zn under the treatment of preasmud (5 t/ha) plus pyrites (2 t/ha). 2 + The active Fe and total chlorophyll content in leaf significantly increased by the application of pressmud and increasing levels of pyrites. The maximum content 2 + of active Fe and total chlorophyll Was under the treatment of pressmud (5 t/ha) plus pyrites (2 t/ha). This resulted decrease in chlorosis and increase in dry matter yield of sugarcane. It indicated that the application of pressmud (5 t/ha) plus pyrites (2 t/ha) had beneficial effect on reducing chlorosis in sugarcane due to increased availability of nutrients in saline calcareous soil and 2 + active Fe and total chlorophyll content in sugarcane crop.enThesis