HomeInternational Rice Research Notesvol. 28 no. 1 (2003)

Leaf Color Chart-Based N Management in Wet-Seeded Rice

M.n. Budhar | N. Tamilselvan

Discipline: Agriculture



When blanket N recommendations are adopted, the crop demand for N and fertilizer N application are usually not matched properly. To avoid underfertilization or overfertilization of N to the rice crop, IRRI introduced the leaf color chart (LCC) to help farmers measure leaf color intensity, an indicator of the crop’s need for N. This leads to a crop need-based, variable rate of N application to rice. Hegde et al (2001) pointed out the advantage of using the LCC to effectively manage blast incidence in rainfed rice culture. Although transplanting of rice is traditionally practiced in India, direct wet seeding of rice is becoming popular because of higher profit and greater savings on labor. An experiment was conducted to study LCC based N management in wet seeded rice.