Effect of Phosphorus Fertilizer Levels on Productivity and Grains Quality of Some Rice Cultivars

Abstract

The field experiment was carried out at Kafr El-Tayfa Village, Kafr El-Sheikh Center, Kafr El-Sheikh Governorate, during 2015 and 2016 seasons to determine the effect of phosphorus fertilizer levels (0, 5, 10, 15 and kg P₂O₅/fed) on growth, grain yield and its attributes and grains quality characters of some rice cultivars (Giza 179, Giza 182 and Misr hybrid 1). The experiment was carried out in strip-plot design with four replications. The vertical plots were assigned to rice cultivars. The horizontal plots were occupied with the phosphorus fertilizer levels. The obtained results showed that Misr hybrid 1 cultivar significantly superior Giza 179 and Giza 182 cultivars in number of days to 50 % heading, total chlorophylls in flag leaf, flag leaf area, plant height, panicle length, number of branches/panicle, number of grains/panicle, phosphorus content, total nitrogen and crude protein percentages in rice grains in both seasons. Whereas, Giza 179 cultivar exceeded Misr hybrid 1 and Giza 182 cultivars and resulted in the highest values of number of panicles/m², 1000 - grain weight, grain and straw yields/fed in both seasons. While, Giza 182 cultivar recorded the highest values of total carbohydrates percentages in rice grains in both seasons. Application the highest level of phosphorus fertilizer (20 kg P₂O₅/fed) produced the highest values of growth characters, yield and its attributes and grains quality, excluding total carbohydrates percentages in rice grains in both seasons.

According to the obtained results from this study, it can be concluded that, fertilizing rice Giza 179 cultivar with kg 20 P₂O₅/fed could be recommend to achieve maximum grain and straw yields per unit area and fertilizing Misr hybrid 1 cultivar with kg 20 P₂O₅/fed to obtained growth and individual yield of plant under the environmental conditions of Kafr El-Sheikh Center, Kafr El-Sheikh Governorate, Egypt.

Keywords

• Rice,Oryza sativa L.,cultivars,varieties,genotypes,phosphorus fertilizer levels,growth,yield

Kaynakça

1. Ahmadikhah, A. ; S. Asadollah and M. Mirarab (2010). Different response of local and improved varieties of rice to cultural practices. Arch. Appl. Sci. Res., 2 (2): 69-75.