Abstract
The effects of planting wheat in permanent beds with fertilization on grain yield and quality need to be better understood. An experiment was conducted at five sites during 2008 and 2009. The objective was to estimate the effects on wheat (Triticum aestivum L.) grain yield and quality of two granular forms of nitrogen (N) (urea and ammonium sulfate, AS) split applied at planting and tillering, and three sprays (urea, AS, and a fungicide) at anthesis. The granular N source affected yield, spike number, and rheological parameters depending upon the soil reaction. Dough resistance/extensibility ratio (P/L) was associated with the normalized difference vegetative index (NDVI) readings collected during tillering before the granular N application. Fungicide spray at anthesis improved yield and grain physical quality evaluated as thousand-grain weight (TGW), test weight, and hardness. Grain protein concentration (GPC) appeared to be mainly affected by environmental factors rather than fertilization practices.
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