A Comparison of urea and sulfur coated urea urea on quantitative and qualitative yield of rice )Oryza sativa L.( under different silica rate

Subject Areas : agronomy

Leila Kayan Hosseini 1 ¹ , Mani Mojaddam2* ² , Timoor Babaei Nejad3 ³

1 - 1-M.Sc. graduated student of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
2 - 2-Assistant Prof., Department of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
3 - 3-Assistant Prof., Department of Soilscience, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

Received: 2019-03-06 Accepted : 2019-06-20 Published : 2019-07-23

Keywords: Grain yield, seed protein, Keyword: Anbar Najafi cultivar,

Abstract :

In order to investigate the comparison of urea and sulfur cotaed urea fertlizer on quantitative and qualitative yield of rice, Anbar Najafi cultivar under different silica, this research was conducted in Shadegan in 2017 carried out as split-plot based on randomized complete blocks design with three replications. Treatments consisted of urea fertilizer sources in two levels: simple urea fertilizer (250 kg net nitrogen) and sulfur coated urea fertilizer in main plots and silica at four levels: one in a thousand, two in thousand, three in thousand and four in thousand were in sub plots. The results showed that urea fertilizer and silica fertilizer significantly affected on grain yield, number of spikes per square meter, 1000 grain weight and protein content. Sulfur coated urea effectively yield compared to conventional urea fertilizer at a rate of 23.22 percent. Also, the interaction of urea and silica fertilizers on all measured traits was significant. The highest grain yield (290.41 g/m2) was obtained from urea fertilizer treatment with sulfur coating and spraying two in 1000 of silica. The highest protein content (10.04%) obtained in  sulfur coted urea fertilizer with two per thousand spray of silicon , respectively. Therefore, according to the results, values of two per thousand silica and urea fertilizer with sulfur coating due to increased protein and grain yield as a suitable treatment in the study area are introduced.