Studies on the effect of nitrogen on the growth, yield and nutrient uptake of two newly introduced rice varieties (Tainan 3 and Taichung Native I)

Abstract

A pot culture study was conducted, using specially designed concrete pots to determine the response of Tainan 3 and Taichung Native 1 to applications of varying levels of nitrogen and to compare their performance. The study has enabled the following main conclusions to be drawn. 1. The two varieties exhibited marked differences in their agronomic characters. 2. Nitrogen application at varying levels had significant influence on the various agronomic characters, such as plant height, number of tillers per plant, length and weight of panicle and the number of productive tillers per plant, length and weight of panicle and the number of productive tillers. All these were enhanced by increasing levels of nitrogen.