HomeInternational Rice Research Notesvol. 22 no. 3 (1997)

Use of the chlorophyll meter in N management of subtropical wheat following rice

Bijay Singh | Yadvinder Singh | K. F. Bronson

Discipline: Agriculture

 

Abstract:

 

In South Asia, researchers have reported that the highest wheat yields can be obtained by splitting the recommended N dose of 120 kg N ha-1. For two splits, basal N at land preparation and an N topdressing at crown root initiation (CRI) or 20-25 d after sowing (DAS) are applied. Additionally, N is sometimes added in a third dose at maximum tillering (MT) or jointing. The CRI and MT stages are times of irrigation, so the N fertilizer is applied just prior to irrigation to improve efficiency of N.