Comparing effect of different nitrogen recourses on maize eco-morphologic characteristics under drought stress

Subject Areas : New Finding in Agriculture

M. Kavand ¹ (M. Sc. in Agronomy, Agriculture-Jahad Organization of Markazi Province, Arak, Iran)
H. Madani ² (Department of Agronomy and Plant Breeding, Arak Branch, Islamic Azad University, Arak, Iran)
A. Dadian ³ (Department of Agronomy and Plant Breeding, Farahan Branch, Islamic Azad University, Farahan, Iran)

Received: 2016-01-13 Accepted : 2016-01-13 Published : 2015-08-23

Keywords: Drought stress, yield, Chemical Fertilizer, Forage corn, Biologic fertilizer,

Abstract :

In order to study of effects chemical and biologic fertilizers and their interaction on physiological characteristics, yield and yield component corn forage under drought stress. An experiment was conducted in 2011 growing season at personal farm. An experiment was conducted split factorial based on randomized complete design with three replications. Sub factors experiment include nitrogen fertilizer was three levels zero , 125 , and 250 kg urea fertilizer in four stage from leaves six until after the stage pollination and three levels biologic fertilizers nitroxin include zero ,0 /5 and 1 lit per each 25 kg seed was the seed  inoculation . Main factor include drought stress with tow stage irrigation 7 days (non-stress) and irrigation 10 days (drought stress) were in main plot. Traits measurement were according to ear height, ear diameter, ear length, row number in ear, kernel number in row, kernel number in ear and forage yield. Results showed employ urea and nitroxin on yield was better than none treated. Also complete irrigation than the drought stress was significant on yield. Highest and lowest yield forage obtained respectively in treatment integrated 125 kg urea fertilizer, 1 lit nitroxin in complete irrigation the mean 110/9 t/ha and in treatment none use of urea and nitroxin and drought stress the mean 59/1 t/ha. In general treatment integrated 125 kg urea fertilizer and 1 lit nitroxin in complete irrigation was better than other treatment.

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