HomeInternational Rice Research Notesvol. 23 no. 2 (1998)

Response of rice hybrids to N sources and time of application of N and K

K. Surekha | M. N. Reddy | C. H M. Vijayakumar

Discipline: Agriculture



Although NH4-N has been accepted as the preferred N source in rice, NO3-N was reported to be the preferred source in China at late crop growth stages when hybrid exhibited a peak demand for nutrients. A higher percentage of unfilled grains is common in hybrid rices unless the soil nutrient supply can cope with crop demands. Thus, delayed application of N and K coinciding with flowering can help realize the potential of hybrid rices.