Effect of Some Controlled Release Nitrogen Fertilizer (Coated Urea) on Growth, Yield, and Nitrogen Uptake of Corn Plants.

Document Type : Original Article

Authors

Soils Department, Faculty of Agriculture, Mansoura University, Egypt.

Abstract

Nitrogen fertilization plays an important roles for improving corn yield but it was easily lost after addition of N-fertilizers. This study was conducted during the   season of 2015 for comparing five slow release N fertilizers namely, urea formaldehyde (UF), sulfur coated urea (UFS), sulfur& inhibitors coated urea (UFSIN). Cement coated urea (U Cement) and cement & inhibitors coated urea (U Cement in) and tow adding rates (recommended and 1.5 recommended) by soil application under a complete randomize design, with three replicates for each treatment. The results indicated that the best  values of fresh and dry weight of shoot   yield and flag leaf of maize (g) as well as plant height (cm),  ear weights (g), 100-seed weight (g), protein of grain (%) and grain yield (g)of maize were at(UFSIN) treatment . Also, the values of nitrogen, phosphorus, potassium, contents in shoot   and flag leaf of maize were evaluated under the effect of different types of coated urea.

Keywords

Journal of Soil Sciences and Agricultural Engineering
Volume 7, Issue 8
August 2016
Pages 523-527

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