HomeInternational Rice Research Notesvol. 27 no. 2 (2002)

Zinc Enrichment of the Mat-type Rice Nursery

A. Rashid | M. Yasin | M. Ashraf

Discipline: Agriculture, Soil Management, Water Management

 

Abstract:

Zinc (Zn) deficiency is a well-recognized nutritional constraint to rice productivity around the world. Although zinc sulfate (ZnSO4) field application is quite effective in alleviating the deficiency (Takkar and Walker 1993), rice farmers are constrained from adopting this remedial measure because of costs involved and additional labor required for uniform broadcast of ZnSO4 in puddled fields. Consequently, the crop keeps suffering substantial yield losses because of Zn deficiency. Recent research conducted in this scenario has established that Zn deficiency in transplanted flooded rice can be effectively controlled by using a Zn-enriched nursery (Rashid et al 2000). The nursery enrichment technology is much cheaper and requires less labor than the conventional method of field-broadcast ZnSO4.