Response of Seed yield, Its Components and Nitrogen Use Efficiency to Apply Different level of Urea Fertilizer and Nitroxin of Barley
الموضوعات :Najmeh Haghighatzadeh 1 , Mani Mojadam 2
1 - Msc. Graduated, Department of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
2 - Assistant Professor, Department of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
الکلمات المفتاحية: Nutrition, Cereal, <i>Biofertilizer, Dual purpose, Spike</i>,
ملخص المقالة :
BACKGROUND: Environmental factors (such as consumption of macro- and micro-fertilizers) and use of agronomic bio-fortification strategy can exert larger influences on seed yield (GY), agro-morphological traits and grain micronutrients concentration of food crops.OBJECTIVES: Current study was done to assess effect of urea fertilizer and Nitroxin biofertilizer on crop production and nitrogen use efficiency of Barley.METHODS: This research was consisted according split plot experiment based on randomized complete blocks design with three replications. The main plot included pure nitrogen sourced from urea fertilizer (a1: 50 kg.ha-1, a2: 100 kg.ha-1, a3: 150 kg.ha-1) and different level of Nitroxin biofertilizer (b1: nonuse of Nitroxin or control, b2: 2 L.ha-1, b3: 4 L.ha-1) belonged to subplots.RESULT: According result of analysis of variance effect of Nitrogen, Nitroxin and interaction effect of treatments (instead 1000-seed weight, harvest index, Nitrogen use efficiency and nitrogen agronomic efficiency) on all measured traits was significant. Mean comparison result of different level of Nitrogen indicated that maximum amount of number of spike per m2 (393.02), number of seed per spike (29.55), 1000-seed weight (36.6 gr), seed yield (4051.15 kg.ha-1), biologic yield (1300.47 gr.m-2), harvest index (31.15%) belonged to 150 kg.ha-1 nitrogen and lowest one belonged to 50 kg.ha-1 but nitrogen use efficiency (58.23 kg. kg-1) and nitrogen agronomic efficiency (10.54 kg. kg-1) had reverse trend and highest amount of mentioned traits was for 50 kg.ha-1 nitrogen. Compare different level of Nitroxin revealed the highest amount of studied traits was noted for 4 L.ha-1 (Also it doesn’t have significant effect with 2 L.ha-1) and minimum amount belonged to control.CONCLUSION: Due to economical aspect application 150 kg.ha-1 nitrogen fertilizer with 2 L.ha-1 Nitroxin biofertilizer produced highest crop production and it can advised to farmers in studied region.
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