Nitrogen Content of Grain as Influenced by Water Supplied to the Plant1

Abstract

AbstractResults of independent studies involving wheat (Triticum aestivum L.) and grain sorghum (Sorghum bicolor (L.) Moench) indicate that a linear relationship exists between nitrogen fraction in the grain and the quantity of water applied to the soil surface just prior to and through vegetative growth of the plant. The effect was noted consistently in studies in Oklahoma and Texas. The designated purpose of these studies was to determine effects of fertilizer amounts and irrigation amount and timing on the production of crops. The studies were conducted at widely separated locations over eight growing seasons. The effect was noted by chance during evaluation of one of the studies and was found to exist in data found in the literature and in data from other studies of the authors.