G. Mahajan, R.S. Sarlach and M.S. Gill
Abstract
The results demonstrated that in late transplanted rice, grain yield improved substantially with single foliar spray of urea (0.5% or 1%) at flowering stage. Grain yield can also be improved with single spray of 1% KNO3 at flowering stage. No yield advantages were found with two sprays of 1% KNO3 as compared to single spray of 1% KNO3. Similarly, no yield advantages as compared to control were found with KNO3 spray (2%) either single or double spray or with two sprays of urea (either 0.5 or 1%) possibly due to less translocation of assimilates toward grains that led to higher spikelet sterility.